International Journal of Impact Engineering最新文献_第2页

Peridynamics-based reformulation of HJC constitutive model for concrete failure analysis under impact

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2025-02-24 DOI: 10.1016/j.ijimpeng.2025.105269

Bowen Sun , Shankun Liu , Wenping Han , Fei Han , Ling Zhang , Yunhou Sun , Yong Mei

{"title":"Peridynamics-based reformulation of HJC constitutive model for concrete failure analysis under impact","authors":"Bowen Sun , Shankun Liu , Wenping Han , Fei Han , Ling Zhang , Yunhou Sun , Yong Mei","doi":"10.1016/j.ijimpeng.2025.105269","DOIUrl":"10.1016/j.ijimpeng.2025.105269","url":null,"abstract":"<div><div>This paper presents a novel bond-based peridynamic model for failure analysis of concrete structures subjected to impact. The model characterizes the tensile response of concrete using the prototype microelastic brittle model, while the Holmquist–Johnson–Cook (HJC) constitutive model is reformulated within the framework of bond-based peridynamics to describe the compressive response. The reformulated model is rate- and pressure-dependent and accounts for strain softening due to plastic damage. A yield criterion for peridynamic bonds is introduced, and the return-mapping algorithm is employed to determine bond-force. A semi-spring contact model is utilized for contact calculation. The validity of the proposed model is verified by comparing simulation results with experimental stress–strain data. Additionally, both low- and high-speed impact tests on concrete structures are simulated. The crack morphology observed in the simulations aligns with experimental observations, indicating that the proposed model can effectively analyze the failure of concrete structures under impact.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"201 ","pages":"Article 105269"},"PeriodicalIF":5.1,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143529327","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 coating thickness on ballistic impact behavior of aluminum foam/polyurea reinforced composites

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2025-02-22 DOI: 10.1016/j.ijimpeng.2025.105284

Yulin Guo , Yue Wu , Zhiqiang Fan , Songwen Yi , Zhuwen Lv , Tiangen Wang

{"title":"Effect of coating thickness on ballistic impact behavior of aluminum foam/polyurea reinforced composites","authors":"Yulin Guo , Yue Wu , Zhiqiang Fan , Songwen Yi , Zhuwen Lv , Tiangen Wang","doi":"10.1016/j.ijimpeng.2025.105284","DOIUrl":"10.1016/j.ijimpeng.2025.105284","url":null,"abstract":"<div><div>The poor impact resistance of aluminum foam restricts its wide application in advanced engineering structures while reinforcing phases and coatings are effective methods to improve its impact resistance. The ballistic impact resistance can be optimized by adjusting the mixing ratio of composite layers and coatings, but this requires a systematic exploration of the reinforcement mechanism and failure mechanism. In this paper, the ballistic impact behavior of aluminum foam/polyurea composites against cylindrical fragments is systematically investigated. Hybrid specimens with different coating positions and mixing ratios were designed, tested, and compared. The results show a strong correlation between coating thickness and ballistic impact performance. When the coating thickness increases but does not exceed the critical value, the energy absorption capacity of the composite is enhanced. On the contrary, the opposite result occurs when the coating thickness exceeds the critical value. This phenomenon is related to the support effect of the coating, which can significantly affect the enhancement of the reinforcing phase. Further analysis shows that the support effect and the enhancement together dominate the different impact damage modes.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"201 ","pages":"Article 105284"},"PeriodicalIF":5.1,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480449","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

Development of a machine learning-driven formula for calculating fragment velocity

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2025-02-22 DOI: 10.1016/j.ijimpeng.2025.105288

Sheng Zhang , Zhen-Qing Wang , Shu-Tao Li , Tian-Chun Ai , Ye-Qing Chen

{"title":"Development of a machine learning-driven formula for calculating fragment velocity","authors":"Sheng Zhang , Zhen-Qing Wang , Shu-Tao Li , Tian-Chun Ai , Ye-Qing Chen","doi":"10.1016/j.ijimpeng.2025.105288","DOIUrl":"10.1016/j.ijimpeng.2025.105288","url":null,"abstract":"<div><div>Fragment velocity is a critical parameter for assessing the damage potential of cased charges, and its accurate prediction has been a focal point in the field of engineering protection. To develop a more widely applicable and accurate fragment velocity calculation formula, this study integrates experimental and numerical simulation results to construct an artificial neural network (ANN) predictive model for the spatial distribution parameters of fragment velocity. Based on this, a calculation formula that considers spatial distribution parameters and fragment velocity distribution is derived. The results indicate that fragment velocity is positively correlated with the charge mass ratio, end cap thickness ratio, and aspect ratio, with the mass ratio having the most significant impact. The spatial distribution parameter is negatively correlated only with the end cap thickness ratio. The developed fragment velocity formula yields an average error of 6.2 % for the charge with end caps and 4.4 % without end caps, reducing the average error by 3.9 % and 1.1 %, respectively, compared to the formula established by Liao et al. Overall, the neural network model developed in this study effectively predicts spatial distribution parameters of fragment velocity, and the resulting fragment velocity formula offers broad applicability and enhanced accuracy.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"201 ","pages":"Article 105288"},"PeriodicalIF":5.1,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143520264","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 visco-hyperelastic constitutive model with Mullins effect for polyurea under repeated impact load

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2025-02-22 DOI: 10.1016/j.ijimpeng.2025.105287

Haojie Zhu, Chong Ji, Xin Wang, Yuting Wang, Changxiao Zhao, Yuxuan Gao, Kejie Wang

引用次数: 0

Study on the application of discrepancy-guided symbolic regression algorithm in analyzing the impact resistance of UHP-SFRC target against high velocity projectile impact

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2025-02-21 DOI: 10.1016/j.ijimpeng.2025.105276

Delei Zou , Dilyar Thoti , Zhihui Bao

{"title":"Study on the application of discrepancy-guided symbolic regression algorithm in analyzing the impact resistance of UHP-SFRC target against high velocity projectile impact","authors":"Delei Zou , Dilyar Thoti , Zhihui Bao","doi":"10.1016/j.ijimpeng.2025.105276","DOIUrl":"10.1016/j.ijimpeng.2025.105276","url":null,"abstract":"<div><div>Accurately predicting the depth of penetration (DOP) values for ultra-high-performance steel fiber-reinforced concrete (UHP-SFRC) targets under high-velocity projectile impact (HVPI) is crucial to assess damage patterns and maintain the integrity of protective structures. However, traditional empirical formulas often fall short, resulting in significant underestimations. To address these inaccuracies and inefficiencies, this study establishes a discrepancy-guided, H2O Auto-ML-assisted Offspring Selection Genetic Programming-Symbolic Regression (OSGP-SR) algorithm to rectify traditional empirical formulas and markedly improve the accuracy and robustness of DOP predictions. Four widely used empirical formulations for predicting DOP in traditional reinforced concrete structures, i.e., BRL, NDRC, ACE, and AW were selected as optimization objectives. A dataset comprising 265 samples of UHP-SFRC targets subjected to HVPI was created for verification and analysis. An examination of the prediction deviations in the original formulations informed an optimization strategy based on discrepancy-guided analysis. Moreover, the identification of key feature variables was conducted through feature contribution screening, and the proposed algorithm based on discrepancy-guided was utilized to refine the existing formulas. Results indicate that the modified NDRC model achieves the lowest mean absolute percentage error (MAPE), while the BRL model excels in comprehensive evaluation, maintaining accuracy regardless of coarse aggregate presence. Furthermore, a graphical user interface (GUI) for engineering applications is provided.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"201 ","pages":"Article 105276"},"PeriodicalIF":5.1,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143487084","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

Direct impact Hopkinson compression bar experiment for testing at a strain rate of 50,000 s-1

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2025-02-21 DOI: 10.1016/j.ijimpeng.2025.105277

Nathan Spulak , Jeremy Seidt , Charles Ruggeri , Duane Revilock , Amos Gilat

引用次数: 0

Effect of mechanical properties of UHMWPE composite on its bulletproof performance

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2025-02-20 DOI: 10.1016/j.ijimpeng.2025.105275

Yemao He , Johnny Qing Zhou , Yanan Jiao , Hongshuai Lei

{"title":"Effect of mechanical properties of UHMWPE composite on its bulletproof performance","authors":"Yemao He , Johnny Qing Zhou , Yanan Jiao , Hongshuai Lei","doi":"10.1016/j.ijimpeng.2025.105275","DOIUrl":"10.1016/j.ijimpeng.2025.105275","url":null,"abstract":"<div><div>The effect of mechanical properties of ultra-high molecular weight polyethylene (UHMWPE) composites on their bulletproof performance is still insufficient understanding. This is attributed to the thermoplastic matrix and unidirectional orthogonal structure, which complicate the investigation of mechanical behaviors in UHMWPE composites. This paper introduces a characterization method for the mechanical behavior of UHMWPE composites using specialized fixture and sample designs, while also revealing failure mechanisms through detailed multiscale damage morphology. For the first time, the relationship between mechanical properties and bulletproof performance was explored. The resistance to penetration is strongly associated with axial tensile, mode I delamination, and out-of-plane shear properties, yet it exhibits a bilinear relationship with mode II delamination properties. The anti-penetration performance of UHMWPE composite is mainly determined by the coupling of its in-plane axial tensile property and interlaminar interface property. This research offers a new perspective for deducing the bulletproof performance of UHMWPE composites based on their mechanical properties.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"201 ","pages":"Article 105275"},"PeriodicalIF":5.1,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143465544","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

Welded aluminium joints - testing and shell-element modelling

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2025-02-18 DOI: 10.1016/j.ijimpeng.2025.105254

Sigurd Aune , David Morin , Magnus Langseth , Ole Runar Myhr , Arild Holm Clausen

{"title":"Welded aluminium joints - testing and shell-element modelling","authors":"Sigurd Aune , David Morin , Magnus Langseth , Ole Runar Myhr , Arild Holm Clausen","doi":"10.1016/j.ijimpeng.2025.105254","DOIUrl":"10.1016/j.ijimpeng.2025.105254","url":null,"abstract":"<div><div>This article is a combined experimental and numerical study on testing and shell-element modelling of welded aluminium connections made of Al-Mg-Si alloys in the AA6xxx series. The experimental part presents a novel test campaign investigating the behaviour of welded aluminium connections in a T-joint subjected to quasi-static and impact loading. The deformation sequence of the T-joint was similar in the quasi-static and impact tests. The deformation was confined to the heat-affected zones (HAZ), which exhibited lower hardness values than the base and weld materials. The numerical part of this study considers the modelling of the HAZ employing shell elements, which may be present due to the welding of Al-Mg-Si alloys. Based on the output from a welding simulation and a microstructure-based model, a virtual calibration procedure is proposed to establish model parameters applicable in large-scale analyses. The virtual calibration procedure is benchmarked against the welded T-joint, where the base and HAZ materials’ hardness, yield stress, and work hardening are captured reasonably well. To this end, shell-element simulations of the T-joint tests are conducted, and the results resemble those of the experiments to a large extent.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"201 ","pages":"Article 105254"},"PeriodicalIF":5.1,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143510438","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

Effect of filling pattern on the response of 316L additively manufactured architected structures subjected to dynamic indentation

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2025-02-18 DOI: 10.1016/j.ijimpeng.2025.105265

Camille Buros , Philippe Viot , Paul J. Hazell , Hongxu Wang , Julie Lartigau

{"title":"Effect of filling pattern on the response of 316L additively manufactured architected structures subjected to dynamic indentation","authors":"Camille Buros , Philippe Viot , Paul J. Hazell , Hongxu Wang , Julie Lartigau","doi":"10.1016/j.ijimpeng.2025.105265","DOIUrl":"10.1016/j.ijimpeng.2025.105265","url":null,"abstract":"<div><div>The out-of-plane compressive behaviour of three types of architected structures subjected to quasi-static and dynamic indentation was investigated in this paper. The effects of filling a pattern - with three unit-cell patterns and three levels of cell wall waviness - and velocities are characterized through experiments at low (10 mm/min) and high-speed testing (around 300 m/s). The metallic architected structures of interest are extruded in two-dimensions through Directed Energy Deposition – Laser Powder (DED-LP) technology. This work is focused on the energy absorption capacities of architected structures when indented. In quasi-static, the results showed no effect of the cell walls waviness on the energy absorption capacity of the structures. However, different deformation mechanisms were observed depending on the unit-cell pattern, showing an effect of unit-cell pattern on energy absorption capacities. On the contrary, in dynamic enhanced absorption capacities were observed with higher level of cell walls waviness. Finally, the cross-sectional view of the structures after indentation were analyzed to observe the failure mechanisms.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"201 ","pages":"Article 105265"},"PeriodicalIF":5.1,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143453570","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

Modeling and calculating the transverse impact response of an elastic-plastic fiber-like material

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2025-02-17 DOI: 10.1016/j.ijimpeng.2025.105272

Jiaqi Tang , Jitang Fan , Xu Wang

{"title":"Modeling and calculating the transverse impact response of an elastic-plastic fiber-like material","authors":"Jiaqi Tang , Jitang Fan , Xu Wang","doi":"10.1016/j.ijimpeng.2025.105272","DOIUrl":"10.1016/j.ijimpeng.2025.105272","url":null,"abstract":"<div><div>The fiber-like materials, that have a long and thin geometric feature, are often adopted in various composite materials and structures and transverse impact response is key for design and service. In this paper, we develop a theoretical model for characterizing the dynamic mechanical response upon transverse impact on an elastic-plastic fiber-like material. Numerical analysis is then carried out for revealing the impact history with timing. The stress waves that are generated and propagate along both longitudinal and transverse directions of fiber-like material are considered. The motion of fiber-like material as well as the accompanied elastic-plastic deformation is given. Resultantly, a triangle-like configuration of fiber-like material in impact process is displayed. Furthermore, the effects of initial impact velocity on the triangle-like configuration of fiber-like material and the Eulerian transverse wave speed are addressed and their relations are analyzed. These results are verified against experimental data. At a given initial impact velocity, the motion of fiber-like material and the accompanied elastic-plastic deformation induced by longitudinal stress wave are presented. With the increase of initial impact velocity, a higher Eulerian transverse wave speed is produced, which induces a faster motion of fiber-like material and a larger range of displacement.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"200 ","pages":"Article 105272"},"PeriodicalIF":5.1,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143453763","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