International Journal of Impact Engineering最新文献_第10页

A novel hydro-elastoplastic constitutive model incorporating hydrostatic damage for predicting high-pressure performance of concrete under blast loading 包含静水损伤的新型水-弹塑性结构模型，用于预测爆炸荷载下混凝土的高压性能

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2024-06-19 DOI: 10.1016/j.ijimpeng.2024.105037

Lei Yan , Li Chen , Qin Fang

{"title":"A novel hydro-elastoplastic constitutive model incorporating hydrostatic damage for predicting high-pressure performance of concrete under blast loading","authors":"Lei Yan , Li Chen , Qin Fang","doi":"10.1016/j.ijimpeng.2024.105037","DOIUrl":"https://doi.org/10.1016/j.ijimpeng.2024.105037","url":null,"abstract":"<div><p>The evolution of damage and failure modes of concrete under blast or impact loads are the outcomes of stress wave propagation. The stress state at a point within the concrete changes instantaneously with time and space. Establishing a constitutive model that can cover the nonlinear behavior of materials under complex loading paths and histories is an extremely challenging task. The main difficulty lies in the construction of the damage model, which has not yet been fully resolved in commonly used concrete models. This paper, based on the mechanisms of damage and failure of concrete under hydrostatic pressure, constructs a state equation that includes the description of crushing and compaction damage due to the collapse and closure of pores, as well as their interactive model, negative pressure degradation caused by hydrostatic pressure, and nonlinear volumetric behavior under loading/unloading/reloading. By introducing independent shear and tensile deviatoric damage scaling functions and a damage scaling function under isotropic tension, the coupling relationship between deviatoric and volumetric damage is considered. Corresponding strength models and element erosion criteria are developed based on the new state equation and damage models. Then, single-element numerical experiments of unconstrained uniaxial compression and tension, triaxial compression under different confining pressures, monotonic and cyclic hydrostatic compression, and isotropic tension were conducted to verify the predictive accuracy of the proposed model under single loading paths. Finally, numerical experiments of contact explosion on plain concrete thick and thin targets were carried out using the proposed model, revealing the propagation laws and failure processes of the loading compression wave, unloading tensile wave, and reflected tensile wave within the concrete target. The predicted final failure modes are consistent with the experimental results.</p></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141485805","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 test specimen carrier for the Taylor anvil test using 3D additive printing technology 利用三维快速成型打印技术开发用于泰勒铁砧试验的试样载体

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2024-06-19 DOI: 10.1016/j.ijimpeng.2024.105026

Miroslav Jopek, Samuel Muller, Jan Rihacek

{"title":"Development of a test specimen carrier for the Taylor anvil test using 3D additive printing technology","authors":"Miroslav Jopek, Samuel Muller, Jan Rihacek","doi":"10.1016/j.ijimpeng.2024.105026","DOIUrl":"https://doi.org/10.1016/j.ijimpeng.2024.105026","url":null,"abstract":"<div><p>Dynamic material testing is increasingly crucial for establishing a comprehensive description of material models. One of the primary testing methods is the Taylor Anvil Test (TAT). In this test, strain rates of up to 10<sup>5</sup> s<sup>−1</sup> can be achieved at impact speeds of 250 m/s. Proper evaluation of a specific material specimen in this test relies on delivering the test specimen to the impact point both centrally and perpendicularly, as well as at the moment of reaching the maximum impact speed. This Article addresses the development of a new carrier for round test specimens manufactured using additive 3D printing technology from a polyactide polymer adapted for the TAT device with a calibre of 17 mm. The Article closely examines the influence of geometric parameters of the carrier itself, optimized using the Ansys Fluid Flow software, with a focus on internal ballistics, particularly to achieve perpendicular impact and maximum impact speed without causing the destruction of the carrier. A new type of test carrier was designed and subsequently tested for round test specimens made of the aluminium alloy Al 2024-T3, evaluating both the impact speeds of the carrier under identical initiation pressure parameters in the filling chamber and the impact speed parameters of the specimen, respectively, the strain rate of the test specimen.</p></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0734743X24001507/pdfft?md5=d54fb2cb830073ee55a753047a570cef&pid=1-s2.0-S0734743X24001507-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141429457","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

Experimental and theoretical study of cone angle in alumina tiles under ballistic impact 弹道冲击下氧化铝瓦锥角的实验和理论研究

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2024-06-19 DOI: 10.1016/j.ijimpeng.2024.105025

Shanglin Yang , Longkun Lu , Yue Gao , Yizhi Zhang , Tao Wang , Zhanli Liu

{"title":"Experimental and theoretical study of cone angle in alumina tiles under ballistic impact","authors":"Shanglin Yang , Longkun Lu , Yue Gao , Yizhi Zhang , Tao Wang , Zhanli Liu","doi":"10.1016/j.ijimpeng.2024.105025","DOIUrl":"https://doi.org/10.1016/j.ijimpeng.2024.105025","url":null,"abstract":"<div><p>The ceramic cone formed within the ceramic tiles provides effective ballistic resistance. Although the critical velocity of ceramic cone formation has been extensively studied, the cone angle in ceramic tiles after crack initiation is still unclear, which is important for understanding the anti-penetration process. In this paper, the cone angle in ceramic tiles is systematically investigated both experimentally and theoretically. First, the dynamic failure process of ceramic tiles is characterized by means of ballistic impact experiments, and the results show that the cone angle gradually decreases with the increase of the thickness of the ceramic tile, while it is independent of the impact velocity. Then, based on the minimization of deformation energy and fracture energy, a theoretical model is established for the first time to predict the cone angle, which takes into account the strain rate effect on tensile strength. This model can well explain the effect of the thickness, impact velocity and fracture properties of the ceramic material on the cone angle obtained in experiments. Increasing the thickness of the ceramic tiles results in larger ceramic fragments while the generated fracture energy declines. This leads to a decrease in the cone angle. Moreover, an increase in the fracture toughness or tensile strength of the ceramic material enhances the resistance to crack propagation, and the generated fracture energy decrease, resulting in a decrease in the cone angle. However, the cone angle does not change much with impact velocity because the impact velocity does not change the stress field distribution of the ceramic tile. This study is meaningful for understanding the ballistic resistance of ceramic tiles.</p></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141485804","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 responses and failure of sandwich structure with carbon fiber composite honeycomb cores 带碳纤维复合蜂窝芯的夹层结构的低速冲击响应和破坏

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2024-06-17 DOI: 10.1016/j.ijimpeng.2024.105034

Yan Wang , Xingyu Wei , Zhibin Li , Cheng Gong , Pengcheng Xue , Jian Xiong

{"title":"Low-velocity impact responses and failure of sandwich structure with carbon fiber composite honeycomb cores","authors":"Yan Wang , Xingyu Wei , Zhibin Li , Cheng Gong , Pengcheng Xue , Jian Xiong","doi":"10.1016/j.ijimpeng.2024.105034","DOIUrl":"https://doi.org/10.1016/j.ijimpeng.2024.105034","url":null,"abstract":"<div><p>The objective of this study is to examine the response and failure of honeycomb sandwich structures made of carbon fiber reinforced polymer (CFRP) composites under low-velocity impacts. Four impact tests with varying energies are performed to induce four distinct damage states in the sandwich structure: no discernible damage, damage to the top face sheet and a portion of the core, damage to the lower face sheet, and total penetration. The damage characteristics of the sandwich structures is analyzed by using industrial tomography technology (CT) without destroying them. A refined finite element model is established to further explain the deformation behavior and energy absorption mechanism of the structure, clarifying the effects of the honeycomb core's structural parameters, such as wall thickness, cell side length, and core height. To enhance the precision of simulation outcomes, a model for the onset and progression of damage in plain woven composites is incorporated into the user-defined material subroutine. The experiments and simulations demonstrate a high level of consistency in terms of peak loads, failure mode, and energy absorption.</p></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141429856","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 response characteristics and damage calculation method of fractured rock mass under blasting disturbance 爆破扰动下断裂岩体的动态响应特性和损伤计算方法

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2024-06-17 DOI: 10.1016/j.ijimpeng.2024.105036

Xudong Jiang , Yiguo Xue , Xingtao Ren , Fanmeng Kong , Xiaomu Liao

{"title":"Dynamic response characteristics and damage calculation method of fractured rock mass under blasting disturbance","authors":"Xudong Jiang , Yiguo Xue , Xingtao Ren , Fanmeng Kong , Xiaomu Liao","doi":"10.1016/j.ijimpeng.2024.105036","DOIUrl":"https://doi.org/10.1016/j.ijimpeng.2024.105036","url":null,"abstract":"<div><p>The mechanical responses and damage characteristics of fractured rock masses under dynamic loads play a significant role in ensuring the safety of blasting operations. The study employs dynamic finite element method (FEM) to simulate blasting in fractured rock masses, revealing the propagation features of blasting stress waves, the evolution of effective stress and the mechanism of damage evolution around the borehole. Based on the Weibull distribution, a rock damage model was established, which yielded the stress-strain relationship and damage equation for rocks under uniaxial impact. The parameters of the damage equation were fitted through numerical SHPB tests. The results indicate that in the direction of higher initial stress, the stress wave propagates faster, and the development of damage surfaces is more pronounced. In cylindrical charge blasting, the maximum blasting stress occurs in the middle section of the borehole, with limited influence from the charge on the bottom of the hole. Within a range of approximately 2 to 3 times the borehole diameter, the surrounding rock sustains complete damage. While within a range of about 4 to 5 times the borehole diameter, the degree of damage to the surrounding rock decreases rapidly, and beyond this range, the damage to the surrounding rock gradually diminishes.</p></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141429857","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

Experimental, analytical and numerical study of reinforced concrete beams impacted by deformable bodies at low velocities 钢筋混凝土梁受低速变形体冲击的实验、分析和数值研究

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2024-06-14 DOI: 10.1016/j.ijimpeng.2024.105027

Lucas Márquez , Hervé Le Sourne , Philippe Rigo

引用次数: 0

Enhancing impact resilience of thermal battery through honeycomb-structured aluminum buffering devices: Insights from large-scale gas-gun tests and simulations 通过蜂窝结构铝缓冲装置增强热电池的抗冲击能力：大型气枪测试和模拟的启示

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2024-06-14 DOI: 10.1016/j.ijimpeng.2024.105023

Yeon Taek Choi , Jihye Kwon , Hyungu Kang , Minu Kim , Ki Jong Kim , Jae Min Lee , Hae-Won Cheong , Sunghak Lee , Hyoung Seop Kim

{"title":"Enhancing impact resilience of thermal battery through honeycomb-structured aluminum buffering devices: Insights from large-scale gas-gun tests and simulations","authors":"Yeon Taek Choi , Jihye Kwon , Hyungu Kang , Minu Kim , Ki Jong Kim , Jae Min Lee , Hae-Won Cheong , Sunghak Lee , Hyoung Seop Kim","doi":"10.1016/j.ijimpeng.2024.105023","DOIUrl":"10.1016/j.ijimpeng.2024.105023","url":null,"abstract":"<div><p>Modern warfare relies heavily on electronic equipment, necessitating reliable energy sources like thermal batteries. Assessing their impact resilience, a study employed honeycomb-structured Al plates as buffering devices in a large-scale gas gun simulating artillery fire. Comparison between peak curves from gas-gun tests and simulations with varying honeycomb wall thicknesses revealed unique patterns, attributed to the buffering device's deformation-restoration process. Different honeycomb wall thicknesses led to varying deformation behavior and impact deceleration, complicating effective energy absorption assessment. Stepped honeycomb wall designs aimed to balance compression, extending energy absorption and reducing deceleration peaks. Prototype honeycomb buffering devices showed improved energy absorption and reduced deceleration during gas-gun tests. Gas-gun tests highlighted complexities in energy absorption assessment, with designs proposing improved energy absorption and reduced deceleration. The actual gas-gun test launched a projectile equipped with a thermal battery and buffering device, resulting in slight casing deformation, while battery cells remained intact, exceeding the standard discharge time (1 h).</p></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141396271","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

Impact testing of high-density polyethylene structure 高密度聚乙烯结构的冲击测试

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2024-06-14 DOI: 10.1016/j.ijimpeng.2024.105033

Martin Kroon , Andreas Hagman , Viktor Petersson , Eskil Andreasson , Mats Almström , Elin Persson Jutemar

{"title":"Impact testing of high-density polyethylene structure","authors":"Martin Kroon , Andreas Hagman , Viktor Petersson , Eskil Andreasson , Mats Almström , Elin Persson Jutemar","doi":"10.1016/j.ijimpeng.2024.105033","DOIUrl":"10.1016/j.ijimpeng.2024.105033","url":null,"abstract":"<div><p>High strain-rate testing of high-density polyethylene is the focus of the present work. This testing is accomplished by two types of experimental testing: uniaxial tensile testing using standard testing technique, and impact testing of a 3D structure with non-trivial geometry. Both the uniaxial tests and the impact tests were evaluated using a material model suited for rate-dependent inelasticity of polymers that has been developed. In the uniaxial tensile tests, a maximum strain-rate of about 28/s was attained. In the impact tests, strain-rates of the order of 100/s and beyond were predicted in the analyses. The impact tests were simulated and analysed by use of finite element simulations. Coupled Eulerian-Lagrangian (CEL) analyses were employed for some of the tests where there was an interaction between the compressed structure and air trapped inside it. Overall, the simulations were able to reproduce the outcome from the experiments well. In particular, the deformation scenarios in the impact tests for different loading situations could be reproduced.</p></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0734743X2400157X/pdfft?md5=5f8882b6b3d392856d2e227092ad2d03&pid=1-s2.0-S0734743X2400157X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141412863","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

Testing and modelling of aluminium cans for prismatic lithium-ion cells under crash loading 碰撞荷载下棱柱形锂离子电池铝罐的测试与建模

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2024-06-13 DOI: 10.1016/j.ijimpeng.2024.105029

Daniele Cioni , David Morin , Arjan Strating , Stephan Kizio , Magnus Langseth , Miguel Costas

{"title":"Testing and modelling of aluminium cans for prismatic lithium-ion cells under crash loading","authors":"Daniele Cioni , David Morin , Arjan Strating , Stephan Kizio , Magnus Langseth , Miguel Costas","doi":"10.1016/j.ijimpeng.2024.105029","DOIUrl":"10.1016/j.ijimpeng.2024.105029","url":null,"abstract":"<div><p>The mechanical performance of a deep-drawn AA3003-H14 aluminium can, which serves as an external shell for vehicle lithium-ion cells, was investigated in the present study. The experimental program included material testing at different locations on the cell, at different orientations, at various strain rates, and component testing. The material was found to be mildly anisotropic and significantly strain rate sensitive. A suitable constitutive model was proposed and validated against experiments to describe the material’s mechanical behaviour. Quasi-static and dynamic tests were performed on the cans and compared with finite element simulations to validate the proposed material model. The limitations of large-scale models suitable for industrial applications were assessed. The results show how this large-scale model can be built for an accurate prediction of the crash behaviour of aluminium cans for prismatic lithium-ion cells.</p></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0734743X24001532/pdfft?md5=f2f980c4c4b6f2b640abf9cc71274053&pid=1-s2.0-S0734743X24001532-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141393149","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

An improved multiphase equation of state for aluminum in hypervelocity impact 改进的铝在超高速撞击中的多相状态方程

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2024-06-13 DOI: 10.1016/j.ijimpeng.2024.105031

M.Z. Wu , Q.M. Zhang , X.Z. Zhong , S.Y. Ren

{"title":"An improved multiphase equation of state for aluminum in hypervelocity impact","authors":"M.Z. Wu , Q.M. Zhang , X.Z. Zhong , S.Y. Ren","doi":"10.1016/j.ijimpeng.2024.105031","DOIUrl":"10.1016/j.ijimpeng.2024.105031","url":null,"abstract":"<div><p>Equation of state (EOS) contains information about the relationships between the thermodynamic variables of materials, and is widely applied in the field of hypervelocity impact (HVI) study. In this paper, based on the framework of the Gray EOS, three improvements are introduced to refine its physical descriptions, including the correction of the entropy function of metals in the liquid phase, the more reasonable description for the cold term, and the modification of the Young-Alder EOS, thereby an improved multiphase EOS is developed, accounting for solid, liquid, gas and mixed-phase (melting and vaporization). Further to this, supported by numerous existing experimental data and molecular dynamics simulation results, the complete parameters of the improved EOS for aluminum are obtained, and the thermodynamic behaviors of aluminum during shock compression and isentropic release are studied, simultaneously a systematic comparison is made in the prediction differences of three EOSs, i.e., the improved EOS, the Gray EOS, and the Tillotson EOS. The results show that the improved EOS can best predict the thermodynamic properties of aluminum in a wide range of states, from the high-pressure dense state (<1 TPa) to the low-density expanded fluid state (> 0.1 g/cm<sup>3</sup>). Then, the improved EOS is embedded into the AUTODYN-SPH hydrocode, and the phase evolution process of aluminum in HVI is displayed.</p></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141395281","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