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

A comment on “Plasticity, ductile fracture and ballistic impact behavior of Ti-6Al-4V Alloy” by Wu et al. (2023), Int. J. Impact Eng. 174:104493 对 Wu 等人 (2023) 的 "Ti-6Al-4V 合金的塑性、韧性断裂和弹道冲击行为 "的评论，Int.J. Impact Eng.174:104493

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2024-11-09 DOI: 10.1016/j.ijimpeng.2024.105165

Z. Rosenberg, Y. Vayig

引用次数: 0

Tensile properties and constitutive modeling of Kevlar29 fibers: From filaments to bundles Kevlar29 纤维的拉伸性能和构成模型：从细丝到纤维束

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2024-11-09 DOI: 10.1016/j.ijimpeng.2024.105164

Xuan Zhou, Wenke Ren, Kaiying Wang, Rui Zhu, Lizhi Xu, Guangfa Gao

{"title":"Tensile properties and constitutive modeling of Kevlar29 fibers: From filaments to bundles","authors":"Xuan Zhou, Wenke Ren, Kaiying Wang, Rui Zhu, Lizhi Xu, Guangfa Gao","doi":"10.1016/j.ijimpeng.2024.105164","DOIUrl":"10.1016/j.ijimpeng.2024.105164","url":null,"abstract":"<div><div>This paper experimentally investigates the tensile properties of Kevlar29 filaments and fiber bundles, revealing the size and strain rate effects on the mechanical properties of fiber bundles. The fracture modes and mechanisms of the fibers were analyzed, and viscoelastic constitutive models at the fiber bundle scale and constitutive models for filaments-bundles based on the Weibull distribution were established. The results show that Kevlar29 fiber bundles exhibit significant strain rate effects: as the strain rate increases, tensile strength and modulus increase, while fracture strain and toughness decrease. Under quasi-static loading, the fracture modes of the fibers are mainly fibrillation or shear flow, but as the strain rate increases, the failure modes shift towards brittle fracture. Both constitutive models can accurately predict the tensile properties of fiber bundles at different strain rates. The accuracy and applicability of the filament-to-bundle constitutive model were verified through numerical simulations, demonstrating that the model better describes the size effect of fibers and quantifies the damage to the fiber bundles.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"196 ","pages":"Article 105164"},"PeriodicalIF":5.1,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662740","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

An experimental setup to study the collision force between brittle impacting bodies 研究脆性撞击体之间碰撞力的实验装置

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2024-11-08 DOI: 10.1016/j.ijimpeng.2024.105160

Valerio De Biagi , Maddalena Marchelli

引用次数: 0

Simulating the break-up, debris formation and throw of concrete structures under explosive loading 模拟爆炸荷载下混凝土结构的破裂、碎片形成和抛掷

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2024-11-08 DOI: 10.1016/j.ijimpeng.2024.105154

Christoph Grunwald , Malte von Ramin , Werner Riedel , Alexander Stolz , Stefan Hiermaier

{"title":"Simulating the break-up, debris formation and throw of concrete structures under explosive loading","authors":"Christoph Grunwald , Malte von Ramin , Werner Riedel , Alexander Stolz , Stefan Hiermaier","doi":"10.1016/j.ijimpeng.2024.105154","DOIUrl":"10.1016/j.ijimpeng.2024.105154","url":null,"abstract":"<div><div>Malicious acts, but likewise unintended accidental explosions, can lead to severe structural damage and resulting debris throw, which poses a significant threat to humans and facilities. Until now, risk analysis is based mainly on empirical data, since the reliable simulation of structural break-up, dissolution and emergence of secondary fragments for real structures is still challenging. In this paper, we investigate the application of a mesoscale description of concrete with finite elements to predict the dispersal of fragments out of dynamically loaded concrete specimens. We demonstrate that the approach delivers accurate predictions for maximum velocity and total debris mass. Further, it is even able to resolve the debris mass distribution with very reasonable quality, a result rarely found in literature up to today. The detailed resolution of the debris field allows furthermore a more thorough determination of the aerodynamic factors governing the subsequent flight phase. We compare the results using different assumptions in terms of flight distances and safety maps.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"196 ","pages":"Article 105154"},"PeriodicalIF":5.1,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamic tensile behaviors and crack propagation in fiber-reinforced cementitious composites: Experimental investigation and peridynamic simulation 纤维增强水泥基复合材料的动态拉伸行为和裂纹扩展：实验研究与周动态模拟

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2024-11-06 DOI: 10.1016/j.ijimpeng.2024.105161

Man Wang , Liang Li , Jianjun Ma , Jun Wu , Xiuli Du

{"title":"Dynamic tensile behaviors and crack propagation in fiber-reinforced cementitious composites: Experimental investigation and peridynamic simulation","authors":"Man Wang , Liang Li , Jianjun Ma , Jun Wu , Xiuli Du","doi":"10.1016/j.ijimpeng.2024.105161","DOIUrl":"10.1016/j.ijimpeng.2024.105161","url":null,"abstract":"<div><div>Fiber-Reinforced Cementitious Composites (FRCC) have gained significant attention in engineering applications due to their superior mechanical properties and toughness, particularly under high strain rate conditions. This study performed dynamic tensile tests on FRCC at high strain rates (35–110 s⁻¹) using a Split Hopkinson Tensile Bar (SHTB) apparatus. Additionally, a novel Peridynamic (PD) model was developed for the SHTB and FRCC system, leveraging the advanced capabilities of the emerging PD theory. The study compared and analyzed dynamic tensile strength, ultimate tensile strain, strain rate effects, failure modes, and crack development in FRCC with different fiber ratios at various high strain rates, using both experimental data and PD simulations. The results show that the PD-SHTB-FRCC dynamic model developed in this study exhibits high consistency between numerical simulations and experimental findings, effectively capturing the processes of crack initiation, propagation, and complete failure in FRCC specimens. The dynamic tensile properties of FRCC improve significantly with increased strain rates, with polyethylene (PE) fibers providing superior reinforcement compared to steel fibers. Notably, the dynamic tensile strength, peak tensile stress, and ultimate tensile strain of FRCC increase significantly with rising strain rates, with specimens containing higher PE fiber content showing a more pronounced enhancement effect. For strain rates between 42.6 s⁻¹ and 76.1 s⁻¹, considering dynamic tensile strength, ultimate tensile strain, and peak tensile stress, the optimal combination for resisting dynamic tensile loads was 1.5 % PE fibers and 0.5 % steel fibers. At a strain rate of 99.8 s⁻¹, a 2 % PE fiber ratio alone provided the best performance.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"196 ","pages":"Article 105161"},"PeriodicalIF":5.1,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662744","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

Investigations of high-speed projectile impact on symmetric sandwich structures containing solid propellant with core perforations 研究高速射弹对装有固体推进剂的对称夹层结构的冲击，夹层结构的核心有穿孔

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2024-11-05 DOI: 10.1016/j.ijimpeng.2024.105153

Junjie Wen , Yiming Zhang , Xiufeng Yang , Yang Cai , Sen Chen , Xiao Hou , Yi Wu

{"title":"Investigations of high-speed projectile impact on symmetric sandwich structures containing solid propellant with core perforations","authors":"Junjie Wen , Yiming Zhang , Xiufeng Yang , Yang Cai , Sen Chen , Xiao Hou , Yi Wu","doi":"10.1016/j.ijimpeng.2024.105153","DOIUrl":"10.1016/j.ijimpeng.2024.105153","url":null,"abstract":"<div><div>The response of solid rocket motors (SRMs) to high-speed fragment impacts is crucial for their safety design and operational use in scenarios such as rocket launches and space applications. The visualized Burn to Violent Reaction (BVR) test is used to observe intense reactions induced by high-speed projectile impacts. Employing a two-stage light gas gun and optical diagnostic techniques including high-speed schlieren imaging and direct photography, the impact-induced deflagration/explosion behavior, and reaction growth behavior were investigated. The damage mechanisms of the casing and propellant samples were assessed, and the reaction growth and afterburn effects of the impact-induced fragment cloud were quantitatively analyzed. The results indicate that the ignition delay time is inversely correlated with the impact velocity, decreasing from ms to μs scale. Across a wide range of velocities (1050–2058 m/s), higher projectile velocities induce more sustained and vigorous combustion reactions within the propellant. Furthermore, increasing the propellant air gap to 7.8 cm does not trigger further reactions under the studied configurations. The reaction mechanisms are closely linked to the characteristics of the fragment cloud induced by the impact. The developed Smoothed Particle Hydrodynamics (SPH) method, incorporating material constitutive models, ignition criteria, and reaction growth models, was used to study the influence of projectile velocity on the reaction mechanisms. The simulation results were compared with experimental data, demonstrating satisfactory accuracy.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"196 ","pages":"Article 105153"},"PeriodicalIF":5.1,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662745","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

Low-velocity impact of castor oil-based rigid polyurethane foams: Experiments, microstructure effects and constitutive modelling 蓖麻油基硬质聚氨酯泡沫的低速冲击：实验、微观结构效应和构成模型

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2024-11-01 DOI: 10.1016/j.ijimpeng.2024.105156

Jacopo Lavazza , Qicheng Zhang , Charles de Kergariou , Gianni Comandini , Fernando Alvarez-Borges , Orestis L. Katsamenis , Wuge H. Briscoe , Jemma L. Rowlandson , Tulio Hallak Panzera , Fabrizio Scarpa

{"title":"Low-velocity impact of castor oil-based rigid polyurethane foams: Experiments, microstructure effects and constitutive modelling","authors":"Jacopo Lavazza , Qicheng Zhang , Charles de Kergariou , Gianni Comandini , Fernando Alvarez-Borges , Orestis L. Katsamenis , Wuge H. Briscoe , Jemma L. Rowlandson , Tulio Hallak Panzera , Fabrizio Scarpa","doi":"10.1016/j.ijimpeng.2024.105156","DOIUrl":"10.1016/j.ijimpeng.2024.105156","url":null,"abstract":"<div><div>Rigid polyurethane foams (RPUFs) are widely used in impact protection applications due to their tunable mechanical properties. Recently, RPUFs derived from bio-based sources such as castor oil have been investigated as a greener and more sustainable alternative to replace fossil-based polyurethane foams. It is thus important to understand the mechanical response of these materials to low-velocity impact (LVI), which still needs to be explored. This study aims to fill this gap by evaluating the performance of three types of RPUFs developed from commercially available castor oil-based resins. Drop weight impact tests at different impact energies were performed to investigate the LVI characteristics of the foams. Furthermore, an extensive micro-computed tomography investigation was carried out to improve the understanding of the microstructure of RPUFs and how the composition of these porous materials affected the foam architecture and the macroscopic mechanical response. Finally, a constitutive relationship is proposed to describe and predict the materials’ response at different impact energies.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"196 ","pages":"Article 105156"},"PeriodicalIF":5.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142587293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of the influence of non-uniform strain zone on the crack propagation of PMMA material based on 2D-DIC 基于 2D-DIC 的非均匀应变区对 PMMA 材料裂纹扩展影响的研究

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2024-10-31 DOI: 10.1016/j.ijimpeng.2024.105159

Weiting Gao , Zheming Zhu , Meng Wang , Lei Zhou , Li Ren , Yuntao Wang

{"title":"Investigation of the influence of non-uniform strain zone on the crack propagation of PMMA material based on 2D-DIC","authors":"Weiting Gao , Zheming Zhu , Meng Wang , Lei Zhou , Li Ren , Yuntao Wang","doi":"10.1016/j.ijimpeng.2024.105159","DOIUrl":"10.1016/j.ijimpeng.2024.105159","url":null,"abstract":"<div><div>Hole defects can lead to non-uniform strain distribution under the impact load, thereby influencing crack propagation behavior. In this paper, 2D-DIC technology was employed to examine the effects of holes of varying sizes and loading rates on crack dynamics in PMMA materials, aiming to elucidate detailed knowledge into the characteristics of crack propagation under complex strain fields. Through DIC analyses, the dynamic evolution of strain fields around the crack tip and hole periphery could be precisely captured, enabling tracking of crack propagation behavior including crack propagation velocity, crack propagation path, and crack deflection angle. It is concluded that the non-uniform strain zones generated by holes exert both inhibitory and attracting effects on crack growth. The influence of non-uniform strain zones on crack propagation increases with the elevation of loading rate and hole size. However, as the loading rate increases, the kinetic energy of the crack itself also increases, necessitating sufficiently large hole sizes to effectively influence crack propagation. Overall, this study provides a detailed experimental explanation of the effects of holes on cracks, which will aid engineers in maximizing the positive impact of holes on material performance and their application in the design of microstructure materials.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"196 ","pages":"Article 105159"},"PeriodicalIF":5.1,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662694","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

Effect of projectile nose shape on ballistic resistance of multi-layered explosively welded plates 弹头形状对多层爆炸焊接板抗弹性的影响

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2024-10-30 DOI: 10.1016/j.ijimpeng.2024.105151

Qibo Zhang , Ye Yuan

{"title":"Effect of projectile nose shape on ballistic resistance of multi-layered explosively welded plates","authors":"Qibo Zhang , Ye Yuan","doi":"10.1016/j.ijimpeng.2024.105151","DOIUrl":"10.1016/j.ijimpeng.2024.105151","url":null,"abstract":"<div><div>In the present study, the ballistic perforation resistance of steel/titanium/aluminum (STA) multilayer protective systems impacted by spherical, ogival, conical, and blunt projectiles was investigated experimentally, numerically, and analytically. The targets were manufactured via explosive welding technique to achieve a strong interfacial strength. The projectile nose shape was found to significantly affect the failure modes and ballistic limit velocities of the STA composite plate. Detailed three-dimensional finite element simulations were performed to provide insights into the penetration process and energy absorption characteristics of the STA composite plate. An analytical model was developed to predict the entry and exit penetration phases of a rigid projectile of different nose shapes into the STA target through ductile hole expansion. The model simplified the STA composite plate to be an equivalent monolithic based on the weighting of material resistance and specific cavitation energy in each layer. The analytical and numerical predictions of the residual velocity were in excellent agreement with the experimental data. The predicted evolution of projectile velocity with penetration depth was found to be in satisfactory correlation with those from the numerical simulation. The proposed analytical model shall be useful for designers of multilayer metallic protective structures against fragments from improvised explosive devices.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"196 ","pages":"Article 105151"},"PeriodicalIF":5.1,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593295","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

Blast response and optimization of cylindrical sandwich shells with toroidal tubular cores 带环形管状芯材的圆柱形夹层壳的冲击响应与优化

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2024-10-30 DOI: 10.1016/j.ijimpeng.2024.105157

Zihao Li , Tianhui Zhang , Bo Tang , Zhifang Liu , Zhihua Wang , Shiqiang Li

{"title":"Blast response and optimization of cylindrical sandwich shells with toroidal tubular cores","authors":"Zihao Li , Tianhui Zhang , Bo Tang , Zhifang Liu , Zhihua Wang , Shiqiang Li","doi":"10.1016/j.ijimpeng.2024.105157","DOIUrl":"10.1016/j.ijimpeng.2024.105157","url":null,"abstract":"<div><div>Experimental, theoretical and numerical simulations were carried out to investigate the dynamic response and blast resistance for the cylindrical sandwich shells with toroidal tubular cores under internal blast loading. The typical deformation modes of internal/external shells and toroidal tubular core layers were observed through experiments. A theoretical model considering the circumferential plastic membrane forces and the axial moment components was performed to predict the blast response of sandwich shells. The mid-points deflections and velocities of internal/external shells obtained by theoretical predictions are consistent with the experimental and numerical results. Influences of wall thicknesses of internal/external shells and the axial/radial gradient of toroidal tubular cores on the blast resistance of single and triple layers sandwich shells were investigated by numerical simulations. The results show that the negative gradient structures have the smallest normalized deflection, while the hybrid gradient structures have the highest energy absorption. On this basis, multi-objective optimization of the sandwich shells was carried out by combining the response surface method (RSM) and the multi-objective genetic algorithm (MOGA). The optimization results yielded a trade-off between deformation, energy absorption and structural mass, and demonstrated the advantages of the “Pareto front” in these design cases.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"196 ","pages":"Article 105157"},"PeriodicalIF":5.1,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662738","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