International Journal of Impact Engineering最新文献_第9页

Bird strike-induced damage studies on aero-engine hollow fan blades: A soft tissue-skeleton coupled bird model with calibrated constitutive parameters 航空发动机中空风扇叶片鸟击损伤研究：具有校正本构参数的软组织-骨架耦合鸟击模型

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2026-02-01 Epub Date: 2025-09-07 DOI: 10.1016/j.ijimpeng.2025.105530

Guoju Li , Yitong Feng , Yuanyuan Jiang , Sifan Liu , Qianrui Zhang , Xinzhe Zhang

{"title":"Bird strike-induced damage studies on aero-engine hollow fan blades: A soft tissue-skeleton coupled bird model with calibrated constitutive parameters","authors":"Guoju Li , Yitong Feng , Yuanyuan Jiang , Sifan Liu , Qianrui Zhang , Xinzhe Zhang","doi":"10.1016/j.ijimpeng.2025.105530","DOIUrl":"10.1016/j.ijimpeng.2025.105530","url":null,"abstract":"<div><div>Titanium alloy wide-chord hollow fan blades, incorporating innovative cavities and reinforcing ribs, provide significant weight reduction benefits for advanced high-bypass turbofan engines. Rigorous assessment of bird strike resistance is thereby critical for these lightweight components, particularly since the relatively rigid skeleton within the bird body may heighten the risk of bird strike-induced damage to their thin-walled cavities. To address this challenge, this study develops a novel soft tissue-skeleton coupled bird model that overcomes traditional homogeneous models' inability to capture skeletal impact effects. Critically, soft tissue hydrodynamic parameters are calibrated using Wilbeck’s experimental data via finite element inverse analysis, eliminating skeletal mechanical effects embedded in traditional homogeneous models. The average relative error for simulations of different bird models impacting a rigid plate decreased from 28.5 % (traditional homogeneous model) to 18.9 % (coupled model), reaching 4.1 % (coupled model with calibrated soft tissue hydrodynamic parameters). Simulations of different bird models striking rotating hollow fan blades demonstrated that the coupled model induces localized stress concentrations (1482.6 MPa) and plastic strain (0.345) at skeleton impact sites on the blade leading edge, triggering curling or tearing failure. In contrast, the homogeneous model generates lower stress (1196.5 MPa) and plastic strain (0.06) without curling, confirming skeletal impacts as the primary trigger of this failure. These mechanistic insights advance the physical understanding of bird strike-induced damage in hollow fan blades, providing quantitatively validated criteria for impact resistant design.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"208 ","pages":"Article 105530"},"PeriodicalIF":5.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145027380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A pre-tensioned dynamic tensile mechanical properties testing method for deployment and retrieval cables 一种预张动拉索拉伸力学性能试验方法

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2026-02-01 Epub Date: 2025-09-28 DOI: 10.1016/j.ijimpeng.2025.105546

Fenfei Peng , Yongping Jin , Deshun Liu , Buyan Wan , Guangping Liu

{"title":"A pre-tensioned dynamic tensile mechanical properties testing method for deployment and retrieval cables","authors":"Fenfei Peng , Yongping Jin , Deshun Liu , Buyan Wan , Guangping Liu","doi":"10.1016/j.ijimpeng.2025.105546","DOIUrl":"10.1016/j.ijimpeng.2025.105546","url":null,"abstract":"<div><div>The deployment and retrieval cables are a crucial link between deep-sea exploration equipment and the vessel. The deployment and retrieval safety of this cables process directly affects the operational reliability of the ocean exploration equipment. Therefore, it is of significant importance to conduct tests on the static and dynamic mechanical properties of cables under simulated marine pressure conditions. Due to the limitations of traditional strain measurement methods in dynamic mechanical property tests, which are not suitable for the specific functional and structural requirements of the deployment and retrieval cables specimens and test apparatus, this paper proposes a pre-tensioned dynamic tensile mechanical property testing method for deployment and retrieval cables. Firstly, based on the working conditions and load characteristics of the deployment and retrieval cables during the deployment and retrieval process of deep-sea exploration equipment, a pre-tensioned dynamic tensile mechanical properties test device for deployment and retrieval cables was developed. The composition principles, structural features, and incident wave design of the device are discussed. Then, based on one-dimensional stress wave theory, the limitations of strain measurement methods in traditional dynamic mechanical property tests are analyzed. A pre-tensioned dynamic tensile mechanical properties testing method for deployment and retrieval cables is proposed, and the relevant analytical equations are derived. Finally, using the pre-tensioned dynamic tensile mechanical properties test device for deployment and retrieval cables as an example, the feasibility of the testing method is verified through numerical simulation. This testing method can also be applied to dynamic tensile tests of other materials.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"208 ","pages":"Article 105546"},"PeriodicalIF":5.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145221457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design model of UHMWPE ballistic armor: A comparative study of the U.S. and Chinese military protection standards 超高分子量聚乙烯弹道装甲设计模型：中美军用防护标准比较研究

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2026-02-01 Epub Date: 2025-09-01 DOI: 10.1016/j.ijimpeng.2025.105516

Hong Zhang , Peng Liu , Chaohe Ma , Liang He , Hailin Cui , Ke Zhang

{"title":"Design model of UHMWPE ballistic armor: A comparative study of the U.S. and Chinese military protection standards","authors":"Hong Zhang , Peng Liu , Chaohe Ma , Liang He , Hailin Cui , Ke Zhang","doi":"10.1016/j.ijimpeng.2025.105516","DOIUrl":"10.1016/j.ijimpeng.2025.105516","url":null,"abstract":"<div><div>The design of body armor is mostly based on protection standards and usually includes a wide range of projectiles and protective indicators. Most of the current research focuses on a particular protection standard, few studies conduct design work with different national standards at the same time, and the difficulty of protection for different standards is rarely compared. This paper proposes a design model for body armor in accordance with U.S. (NIJ and IOTV) and Chinese protection standards (GJB) against fragment and bullet considering both penetration and blunt trauma. Ballistic experiments and finite element modelling (FEM) are carried out to investigate the protective capability of UHMWPE body armor with different layers against 7.62 mm FMJ, 9 mm FMJ, and 1.1 g FSP. An analytical model is developed to reveal the linear relationship between the back face deformation (BFD) and the critical velocity observed through FEM. Based on the protective formulae, a design model for UHMWPE body armor is proposed to meet the requirements of GJB 4300A-2012 Level II, NIJ 0101.07 HG1, and IOTV generation III standards. Findings from the design model indicate that NIJ HG1 requires the fewest number of layers (8 layers), followed by GJB Level II (19 layers) and IOTV III (22 layers). Furthermore, design priorities for anti-penetration and anti-blunt trauma are suggested based on the impact velocity for 7.62 mm FMJ (488m/s) and 9 mm FMJ (627m/s). The design model can serve the comparison between different standards and the development of lightweight and effective body armor.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"208 ","pages":"Article 105516"},"PeriodicalIF":5.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145021015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Finite element analysis of ballistic impact on Kevlar-29/epoxy composites with varying layer configurations 不同层构型Kevlar-29/环氧复合材料的弹道冲击有限元分析

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2026-02-01 Epub Date: 2025-09-17 DOI: 10.1016/j.ijimpeng.2025.105538

Shayan Farajyar , Hui Wan , Yanxing Wang

{"title":"Finite element analysis of ballistic impact on Kevlar-29/epoxy composites with varying layer configurations","authors":"Shayan Farajyar , Hui Wan , Yanxing Wang","doi":"10.1016/j.ijimpeng.2025.105538","DOIUrl":"10.1016/j.ijimpeng.2025.105538","url":null,"abstract":"<div><div>This study presents a numerical investigation of the ballistic impact response of Kevlar-29/epoxy resin composites sandwiched between two aluminum layers with an air gap using the Finite Element Method (FEM). The simulation results were validated through comparison with experimental data and numerical benchmarks from the literature. Four composite structures—woven, unidirectional, short fiber, and random particle — were analyzed to evaluate residual velocity, yield stress, displacement, and energy absorption. The results indicate that dividing a 1.29 mm aluminum alloy 2024-O plate into three identical layers, with the middle layer composed of Kevlar-29/epoxy resin woven composite, exhibits the highest resistance to perforation. This configuration achieves significant energy absorption and reduction in projectile velocity while decreasing the total weight of the structure by approximately 18% compared to neat aluminum plate. Further parametric analysis demonstrated that a fiber volume fraction of 0.4, twill weave type, high-volume-fraction fiber geometry, and 1% nanoparticle reinforcement increased central displacement by 19%, and reduced the projectile velocity by approximately 88%. These findings provide insights into optimizing composite structures for enhanced ballistic protection, contributing to the development of high-performance impact-resistant structures.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"208 ","pages":"Article 105538"},"PeriodicalIF":5.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamic modelling for TWIP steel with high-strength and high-toughness 高强高韧TWIP钢的动力学建模

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2026-02-01 Epub Date: 2025-09-09 DOI: 10.1016/j.ijimpeng.2025.105535

Jianhua Dong , Jue Han , Weiwei Li , Hualin Fan

{"title":"Dynamic modelling for TWIP steel with high-strength and high-toughness","authors":"Jianhua Dong , Jue Han , Weiwei Li , Hualin Fan","doi":"10.1016/j.ijimpeng.2025.105535","DOIUrl":"10.1016/j.ijimpeng.2025.105535","url":null,"abstract":"<div><div>Since the traditional rock support materials lack insufficient deformability and strength to meet the support requirements of underground caverns, the development of novel metallic materials used for rock support have drawn research attentions. This paper focuses on the mechanical behavior of a novel steel with high-strength and high-toughness (HSHT) steel, HSHT600, at different temperatures (25 °C to 700 °C) and strain rates (4.2×10<sup>−4</sup> s<sup>−1</sup> to 4000 s<sup>−1</sup>). To demonstrate the superiority of the HSHT600, the steel named MG500 was chosen as the traditional rock bolt material for comparison. HSHT600 steel has a yield strength of 613.912 MPa (approximately 1.23 times that of MG500), a tensile strength of 1181.03 MPa (approximately 1.56 times that of MG500), and an elongation after fracture of 51.9% (approximately 1.93 times that of MG500). A series tensile tests and dynamic impact tests were conducted to develop a modified Johnson-Cook (MJC) model for Steel HSHT600. The Taylor impact test and numerical simulations with an Abaqus subroutine (VUMAT) code were carried out to verify the proposed constitutive and fracture damage models. Finite element modelling (FEM) simulations reveal that the failure modes and deformation predicted by the MJC model are in better agreement with the experimental results, especially it can model the super large plastic but non-necking deformation of Steel HSHT600. In addition, in terms of mechanical properties, Steel HSHT600 exhibits remarkable superiority over traditional rock support materials in strength, deformation capacity, and energy absorption capability. Its outstanding performance makes it a promising candidate for application in deep underground projects. Meanwhile, the MJC Model obtained in this paper is helpful for both further research and engineering application when doing a numerical study of Steel HSHT600 used for rock support.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"208 ","pages":"Article 105535"},"PeriodicalIF":5.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145332831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of rebar configuration and steel liner detailing on the local impact response of reinforced concrete panels 钢筋结构和衬钢细部对钢筋混凝土板局部冲击响应的影响

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2026-02-01 Epub Date: 2025-10-10 DOI: 10.1016/j.ijimpeng.2025.105554

Junhwi Ye , Hyukjun Ahn , Yongjae Yu , Jae-Yeol Cho

{"title":"Influence of rebar configuration and steel liner detailing on the local impact response of reinforced concrete panels","authors":"Junhwi Ye , Hyukjun Ahn , Yongjae Yu , Jae-Yeol Cho","doi":"10.1016/j.ijimpeng.2025.105554","DOIUrl":"10.1016/j.ijimpeng.2025.105554","url":null,"abstract":"<div><div>Despite growing interest in impact-resistant structures, including those used in nuclear power plants (NPPs), previous studies are limited in number and are often conducted under experimental conditions that deviate from actual construction practices. Although NPP structures typically incorporate dense steel reinforcement, the role of reinforcing steel in enhancing impact resistance has often been overlooked. The combined influence of rebar detailing and welded steel liner systems—both integral to real-world NPP construction—has not been systematically investigated, leaving a critical gap in understanding their combined contribution under impact loading. To address this gap, this study presents a comprehensive experimental and numerical investigation of the impact resistance of reinforced concrete panels with varying rebar detailing and rear steel liners. High-velocity impact tests were conducted to simulate hard projectile impacts representative of aircraft collisions against NPP structures. Complementary finite element analyses were performed to examine two key design parameters: steel liner thickness and angle stiffeners spacing. The results demonstrated that wider rebar spacing (180 mm vs. 130 mm) led to reduced impact resistance. Incorporating a rear steel liner significantly enhanced impact resistance, effectively preventing perforation when the liner thickness was approximately 2 % of the panel thickness. Beyond this threshold, additional increases in thickness yielded only marginal improvements. Similarly, reducing stiffener spacing improved resistance, though the improvement plateaued below 160 mm.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"208 ","pages":"Article 105554"},"PeriodicalIF":5.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145333252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-velocity impact behavior and energy absorption characteristics of hybrid titanium composite laminates 混合钛复合材料层合板高速冲击性能及吸能特性

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2026-02-01 Epub Date: 2025-10-07 DOI: 10.1016/j.ijimpeng.2025.105551

Ankush P. Sharma, R. Velmurugan

{"title":"High-velocity impact behavior and energy absorption characteristics of hybrid titanium composite laminates","authors":"Ankush P. Sharma, R. Velmurugan","doi":"10.1016/j.ijimpeng.2025.105551","DOIUrl":"10.1016/j.ijimpeng.2025.105551","url":null,"abstract":"<div><div>The high-velocity impact behavior of fiber metal laminates (FMLs) and their constituents is investigated through modeling and experimentation. The FMLs of equal thickness comprise an alternating arrangement of titanium alloy Ti-6Al-4V sheets of the same total thickness and glass fiber/epoxy layers, bonded together. For a rebound case, FMLs with thinner and thicker metal layers demonstrate higher energy absorption and maximum force. The predicted maximum deflection and energy absorption of glass fiber/epoxy laminate matches experiments, which are higher at low-velocity impact energies than at high-velocity impact ones. For the perforation case, at 2000 /s strain rate, membrane, bending, and shear deformation energies of titanium and glass fiber/epoxy layers principally contribute 79–84 % to the total energy absorption of FMLs. FMLs with thicker and less-thick, thinner metal layers absorb higher and lower (and similar) energies. The ballistic limit velocity and energy absorption of FMLs and glass fiber/epoxy laminate increase with strain rates, and their predictions match experiments. The specific energy absorption of FMLs with membrane and bending energies at 1, 500, 2000, 3000 /s strain rates is around 15, 14, 6, 6 % lower and 65, 67, 77, 76 % higher than a monolithic titanium plate of the same thickness and weight, approaching each other and showing significant improvement. Thus, at the ballistic limit, the effects of confined penetration offset the advantage observed at the rebound stage. The insights contribute to designing impact-resistant titanium FML structures for future high-speed aerospace applications.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"208 ","pages":"Article 105551"},"PeriodicalIF":5.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145333251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigating the effect of ionizing particle radiation on the hypervelocity impact performance of UHMWPE-stuffed space debris shields 研究电离粒子辐射对超高分子量聚乙烯填充空间碎片防护层超高速冲击性能的影响

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2026-02-01 Epub Date: 2025-09-23 DOI: 10.1016/j.ijimpeng.2025.105542

Jarrod Moonen , Shannon Ryan , Simon Barter , Jafar Shojaii , Crystal Forrester , Robert Zouev , Pier Marzocca , Alex Shekhter

{"title":"Investigating the effect of ionizing particle radiation on the hypervelocity impact performance of UHMWPE-stuffed space debris shields","authors":"Jarrod Moonen , Shannon Ryan , Simon Barter , Jafar Shojaii , Crystal Forrester , Robert Zouev , Pier Marzocca , Alex Shekhter","doi":"10.1016/j.ijimpeng.2025.105542","DOIUrl":"10.1016/j.ijimpeng.2025.105542","url":null,"abstract":"<div><div>Here the impact of environmental ionizing proton dose on the hypervelocity impact (HVI) performance of aluminium foam sandwich panels (AFSP) stuffed with the composite of Ultrahigh Molecular Weight Polyethylene (UHMWPE) Dyneema HB311 when serving as the outer wall of a satellite in sun-synchronous low earth orbit (LEO) is examined. A series of Dyneema samples are subjected to varying total ionizing doses by proton exposure calculated to be representative of that which might be imparted during representative LEO missions. The irradiated samples are then subject to quasi-static mechanical tensile tests and changes in ultimate tensile strength (UTS) are determined. The irradiated samples are examined using Attenuated Total Reflectance Fourier-Transformed Infrared (ATR-FTIR) Spectroscopy, from which a clear change in sample chemistry is identified. The measured changes in UTS are then fed into a pre-validated finite element numerical model to determine the effect on the protective capability Dyneema-stuffed AFSPs for space debris protection. The simulations yield a worst case reduction in performance of 11%, measured in terms of the critical diameter of a spherical aluminium projectile, d<sub>c</sub>, impacting at 7 km/s. Over the range of ionizing doses imparted a weak dependence of d<sub>c</sub> on applied dose is identified. Together, this analysis suggests the LEO radiation environment is not a significant factor in decreasing the impact protection performance of a Dyneema-stuffed AFSP over the lifetime of a typical LEO spacecraft mission.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"208 ","pages":"Article 105542"},"PeriodicalIF":5.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145221303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamic behaviour of functionally graded lattice structures with short carbon fibre reinforcement 短碳纤维增强功能梯度晶格结构的动力性能

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2026-02-01 Epub Date: 2025-09-04 DOI: 10.1016/j.ijimpeng.2025.105525

Piyapat Jameekornkul, Ajit Panesar

{"title":"Dynamic behaviour of functionally graded lattice structures with short carbon fibre reinforcement","authors":"Piyapat Jameekornkul, Ajit Panesar","doi":"10.1016/j.ijimpeng.2025.105525","DOIUrl":"10.1016/j.ijimpeng.2025.105525","url":null,"abstract":"<div><div>Lattice structures are being increasingly explored due to advances in additive manufacturing (AM). However, their adoption in impact applications is hindered by an insufficient understanding of their dynamic behaviour, particularly for composite and functionally graded (FG) lattices. This study presents the first systematic investigation that concurrently evaluates multiple design parameters, including cell topology, grading strategy, fibre reinforcement, and loading conditions, on the dynamic response of AM lattices. Lattice specimens made from nylon and carbon fibre-reinforced nylon were tested under intermediate strain rates ranging from 22 to 79 s⁻¹ using drop-weight impact. The results indicate that both stretching-dominated and bending-dominated architectures retained their characteristic failure modes across the tested strain rates, with the latter exhibiting greater strain rate sensitivity. FG lattices outperform their ungraded counterparts in energy absorption by at least 15.2 %, with fibre reinforcement providing an additional enhancement of up to 37.5 %. The experimental results align well with the Cowper–Symonds model and highlight the combined influence of material and lattice design on rate-dependent performance. The findings and insights gathered pave the way for designing high-performance AM lattices for energy absorption applications.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"208 ","pages":"Article 105525"},"PeriodicalIF":5.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145050183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Shear-type failure of deep, short and slender impact-loaded reinforced concrete beams 深、短、细长冲击荷载钢筋混凝土梁的剪切破坏

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2026-02-01 Epub Date: 2025-09-20 DOI: 10.1016/j.ijimpeng.2025.105539

V. Peterson , J. Magnusson , M. Hallgren , A. Ansell

{"title":"Shear-type failure of deep, short and slender impact-loaded reinforced concrete beams","authors":"V. Peterson , J. Magnusson , M. Hallgren , A. Ansell","doi":"10.1016/j.ijimpeng.2025.105539","DOIUrl":"10.1016/j.ijimpeng.2025.105539","url":null,"abstract":"<div><div>Previous research on statically loaded reinforced concrete beams has shown a clear influence of the shear span-to-depth ratio on the resulting shear failure mode. Large shear spans relative to the depth typically lead to capacities governed by the breakdown of beam action, whereas low ratios result in capacities governed by the remaining or full arch. Experimental tests with static loading have determined limits for these ratios and the corresponding failure mode. However, no corresponding limits exist for reinforced concrete beams subjected to high strain rates. This is especially true for deep and short beams, for which test data remain scarce. Impact tests were conducted to study shear span-to-depth ratio limits and corresponding shear-type failure modes at high strain rates. Deep, short, and slender beams were tested to study differences in response. Crack development and deformations were analysed using high-speed photography and digital image correlation (DIC). The series consisted of 27 scaled beams tested under static and impact loading, with varying amounts of transverse reinforcement. Results indicated similar shear failure modes for static and impact-loaded beams across the tested shear span-to-depth ratios. For slender beams, inertial forces and undamaged direct struts dominated early, resulting in higher reaction and internal forces for impact-loaded beams. As deformation developed, the response during both load types was similar, with stiffness dominating and flexural and flexural-shear capacities governing the resistance. Strut and tie models generally aligned with the experimental results, while sectional models were over-conservative. A design procedure based on strut and tie modelling was proposed to capture both early transient and quasi-static phase capacities.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"208 ","pages":"Article 105539"},"PeriodicalIF":5.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145119251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0