International Journal of Impact Engineering最新文献_第4页

High strain rate testing of carbon-epoxy laminate crash boxes filled with polymeric cellular 3D-printed cores 用聚合物蜂窝3d打印芯填充的碳-环氧层压板碰撞盒的高应变率测试

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2025-05-24 DOI: 10.1016/j.ijimpeng.2025.105401

Francesco Bandinelli , Alberto Ciampaglia , Raffaele Ciardiello , Lorenzo Peroni , Marco Peroni , Martina Scapin

{"title":"High strain rate testing of carbon-epoxy laminate crash boxes filled with polymeric cellular 3D-printed cores","authors":"Francesco Bandinelli , Alberto Ciampaglia , Raffaele Ciardiello , Lorenzo Peroni , Marco Peroni , Martina Scapin","doi":"10.1016/j.ijimpeng.2025.105401","DOIUrl":"10.1016/j.ijimpeng.2025.105401","url":null,"abstract":"<div><div>In recent years, rising attention has been given to lightweight crash-absorbing composite components. The cost of their realization could be mitigated by the hybridization with 3D-printed cellular infills, limiting the use of high-value materials such as CFRP. The energy absorption capabilities of 3D-printed cellular structures have been proven to be relevant for crash-absorbing applications. In this study, both quasi-static and high strain rate tests are conducted on hybrid crash boxes fabricated by joining an internal 3D-printed infill with an external CFRP reinforcement. A finite element model is developed to reproduce and predict the high strain rate behavior of the structures. Two different internal cellular structures are used as a mold for the hand-layup process of twill carbon-epoxy prepreg, which is applied directly on the 3D-printed surface. Quasi-static tests show that the addition of CFRP to the 3D-printed infill is beneficial for the improvement of the specific energy absorption, with values up to 15 J/g for the maximum reinforced crash box. High strain rate tests show notable differences, highlighting distinct failure and collapse modes, which strongly affect the mechanical properties of the reinforced crash boxes. While unreinforced crash boxes show an improvement of up to 20 % in Specific Energy Absorption (SEA), drops of up to 30 % and 40 % are observed in reinforced crash boxes for Crush Force Efficiency (CFE) and SEA respectively. This suggests that a more appropriate design should be followed to contrast the unfavorable failure and collapse modes observed in impact scenarios.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"205 ","pages":"Article 105401"},"PeriodicalIF":5.1,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144185245","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

Determination of dynamic flow stress equation based on discrete experimental data: Part 1 Methodology and the dependence of dynamic flow stress on strain-rate 基于离散实验数据的动态流变应力方程的确定：第一部分：方法及动态流变应力与应变率的关系

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2025-05-24 DOI: 10.1016/j.ijimpeng.2025.105403

Xianglin Huang, Q.M. Li

{"title":"Determination of dynamic flow stress equation based on discrete experimental data: Part 1 Methodology and the dependence of dynamic flow stress on strain-rate","authors":"Xianglin Huang, Q.M. Li","doi":"10.1016/j.ijimpeng.2025.105403","DOIUrl":"10.1016/j.ijimpeng.2025.105403","url":null,"abstract":"<div><div>In this study, a framework to determine the dynamic flow stress equation of materials based on the discrete data of varied (or instantaneous) strain-rate from split Hopkinson pressure bar (SHPB) experiments is proposed. The conventional constant strain-rate requirement in SHPB test is purposely relaxed to generate rich dynamic flow stress data (FSD) which are widely and diversely distributed in the plastic strain and strain-rate space. Data qualification criteria were proposed to screen the raw FSD, with which qualified FSD (a coarsely filled matrix) were obtained. The qualified FSD were used to train the Artificial Neural Network (ANN) to obtain finely filled FSD, which were decomposed using Singular Value Decomposition (SVD) method. The flow stress equation can be obtained from the SVD results with high accuracy. In addition, the flow stress equation based on the conventional method was established and evaluated. Five uncertainties inherent in the conventional method in the determination of the flow stress equation were identified. The comparison between the proposed and the conventional flow stress equations demonstrates the effectiveness and reliability of the flow stress equation obtained from the proposed method.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"206 ","pages":"Article 105403"},"PeriodicalIF":5.1,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144212798","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

Hypervelocity impacts on aluminum alloy/titanium alloy composites fabricated by powder-type directed energy deposition 超高速对粉末型定向能沉积铝合金/钛合金复合材料的影响

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2025-05-23 DOI: 10.1016/j.ijimpeng.2025.105391

Masahiro Nishida, Tatsuhiko Sato, Yoshimi Watanabe

{"title":"Hypervelocity impacts on aluminum alloy/titanium alloy composites fabricated by powder-type directed energy deposition","authors":"Masahiro Nishida, Tatsuhiko Sato, Yoshimi Watanabe","doi":"10.1016/j.ijimpeng.2025.105391","DOIUrl":"10.1016/j.ijimpeng.2025.105391","url":null,"abstract":"<div><div>Additive manufacturing is currently undergoing a period of rapid adoption, particularly in the field of impact engineering. Various additive manufacturing processes are utilized for the fabrication of space components and structures. Because space debris orbit at very high velocities over 7 km/s, the potential for severe damage in the event of a collision is considerable. To prepare for the possibility of an unexpected collision with space debris, it is essential to understand the hypervelocity impact behaviors of space components and structures that are fabricated by additive manufacturing processes. Powder bed fusion (PBF) method is the most widely used among many additive manufacturing processes. The hypervelocity impact behaviors of parts and structures fabricated by the PBF method have been examined. In contrast, the directed energy deposition (DED) method, an additive manufacturing process, offers distinct advantages, including high fabrication speed, large-scale printing capabilities, and the production of functionally graded materials. In this study, the Al–10Si–0.4Mg alloy sample, Ti–6Al–4V alloy sample, and Al–10Si–0.4Mg/Ti–6Al–4V composite samples were fabricated using a DED machine. The composite sample with a mixing ratio of 80:20 (Al–10Si–0.4Mg:Ti–6Al–4V) was primarily utilized for strength evaluation. After the confirmation of their tensile properties, the hypervelocity impact behaviors using aluminum alloy projectiles were examined, with a focus on characteristics such as perforation holes, debris clouds (fragments on the rear side of the target), rear wall (fragmentation of projectiles), and backward ejecta (fragments) from the front side of the target. The results were compared with those of the Al–10Si–0.4Mg alloy sample and Ti–6Al–4V alloy sample.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"206 ","pages":"Article 105391"},"PeriodicalIF":5.1,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144289069","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

Ejection angles during hypervelocity impacts on flat and spherical targets investigated with shock physics modeling 用冲击物理模型研究了超高速撞击平面和球面目标时的弹射角

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2025-05-21 DOI: 10.1016/j.ijimpeng.2025.105400

Kenji Kurosaki , Kosuke Kurosawa , Masahiko Arakawa

{"title":"Ejection angles during hypervelocity impacts on flat and spherical targets investigated with shock physics modeling","authors":"Kenji Kurosaki , Kosuke Kurosawa , Masahiko Arakawa","doi":"10.1016/j.ijimpeng.2025.105400","DOIUrl":"10.1016/j.ijimpeng.2025.105400","url":null,"abstract":"<div><div>In NASA's 2022 Double Asteroid Redirection Test (DART) mission, the DART spacecraft collided with the asteroid Dimorphos, the satellite of the binary asteroid (65,803) Didymos. The recoil from the impact ejecta changed the orbital period of Dimorphos. For analysis of this mission, a more accurate method is needed to estimate the momentum carried away by the impact ejecta, so the momentum transfer from the impactor to the target (e.g., Dimorphos) can be properly characterized. Since ejection velocity and angle depend on the target curvature, the effects of the curvature on the impact outcomes should be addressed. This study investigated the ejection velocity and angle generated by hypervelocity impacts under microgravity conditions using a hydrocode simulation with two-dimensional cylindrical coordinates. The materials within an excavation flow on small bodies are sensitive to a process called sustained acceleration, which comes from the compressibility of the flow because of microgravity. We evaluated the effects of sustained acceleration and proposed an ejection threshold to estimate the ejection velocity and angle accurately under microgravity conditions. The effects of target curvature and material strength on the ejection behavior have also been investigated with our ejection threshold. Our method will be helpful for analyzing the excavation of small bodies.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"205 ","pages":"Article 105400"},"PeriodicalIF":5.1,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144185246","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

Puncture properties of aluminum foil over a wide range of deformation rates 铝箔在大变形率范围内的穿刺性能

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2025-05-19 DOI: 10.1016/j.ijimpeng.2025.105395

Hiroyuki Yamada , Takinori Ueno , Nagahisa Ogasawara

{"title":"Puncture properties of aluminum foil over a wide range of deformation rates","authors":"Hiroyuki Yamada , Takinori Ueno , Nagahisa Ogasawara","doi":"10.1016/j.ijimpeng.2025.105395","DOIUrl":"10.1016/j.ijimpeng.2025.105395","url":null,"abstract":"<div><div>The puncture properties of 40-µm 8006 aluminum alloy foil at a wide range of velocities were evaluated. First, to perform the impact puncture test, which has not been reported so far, a load cell for impact puncture testing, which combines a needle and a stress sensing part, was investigated using finite element analysis (FEA), and it was shown that the load could be measured under several m/s. A falling-weight impact puncture test apparatus was then developed. Next, puncture tests were carried out over a wide range of displacement rates (1.0 × 10<sup>–5</sup>–1.3 × 10<sup>0</sup> m/s). The resulting trend of the displacement rate dependence of the material strength obtained from the load-displacement relationship was in qualitative agreement with the strain rate dependence of the material strength obtained from uniaxial tensile tests. However, when the displacement rate increased above 1 m/s, the trend of load increase in the early stages of deformation changed. Observation with a high-speed camera and the results of FEA showed that the deformation in the puncture test direction propagated from the contact area between the needle and the specimen towards the specimen anchorage area. This deformation wave is reflected back to the contact area in the opposite phase when it reaches the specimen anchor, causing deformation that entrains the tip of the needle, thus increasing the load. Based on the above results, the thrusting properties of the film were evaluated over a wide range of speeds, from quasi-static to impact velocity, and the mechanism of the thrusting deformation was clarified.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"205 ","pages":"Article 105395"},"PeriodicalIF":5.1,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144137888","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

Simplified mode solutions for final plastic deformation of circular plates under localized impulsive loading 局部脉冲载荷作用下圆板最终塑性变形的简化模态解

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2025-05-19 DOI: 10.1016/j.ijimpeng.2025.105397

Weizheng Xu, Yu Huang, Tong Li, Hao Tang, Yexun Li, Hua Fu, Xianxu Zheng

{"title":"Simplified mode solutions for final plastic deformation of circular plates under localized impulsive loading","authors":"Weizheng Xu, Yu Huang, Tong Li, Hao Tang, Yexun Li, Hua Fu, Xianxu Zheng","doi":"10.1016/j.ijimpeng.2025.105397","DOIUrl":"10.1016/j.ijimpeng.2025.105397","url":null,"abstract":"<div><div>A general approach for constructing simplified mode solutions for final plastic deformation of circular plates under localized impulsive loading are derived. During construction, the initial modal velocity is calculated by the modal approximation technique. The average strain rate effect is considered by estimating the maximum strain rate field in a circular plate when one-half the initial modal kinetic energy has been dissipated. Once a deformation profile is given, the formula for calculating final plastic deformation considering strain rate effects will be obtained according to the conservation of energy. Firstly, the Bessel deformation profile is selected according to the field equation, the calculated results of the analytical solution are in good agreement with the experimental results. Then the influence of two commonly used parabolic and cosine deformation profiles on the final plastic deformation is discussed. According to the simplified mode solutions, three new dimensionless numbers are proposed, and effective fitting formulas for predicting the final dimensionless plastic deformation are established based on new dimensionless numbers according to a large amount of experimental data. Moreover, the new dimensionless numbers are compared with Nurick's dimensionless number in different loading scenarios to prove that the dimensionless number given in this paper is more reasonable. The research in this paper can provide some reference for the study and evaluation of the dynamic plastic response of circular plates under localized impulsive loading.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"204 ","pages":"Article 105397"},"PeriodicalIF":5.1,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123978","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 a novel CFRP-faced sandwich structure with multi-level negative Poisson's ratio cores 多层负泊松比芯层新型cfrp面夹层结构的低速冲击

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2025-05-19 DOI: 10.1016/j.ijimpeng.2025.105399

Weixin Zheng, Kaifa Wang, Baolin Wang

{"title":"Low-velocity impact of a novel CFRP-faced sandwich structure with multi-level negative Poisson's ratio cores","authors":"Weixin Zheng, Kaifa Wang, Baolin Wang","doi":"10.1016/j.ijimpeng.2025.105399","DOIUrl":"10.1016/j.ijimpeng.2025.105399","url":null,"abstract":"<div><div>Honeycomb sandwich structures with carbon fiber-reinforced polymer (CFRP) face sheets have found widespread application in aerospace, ship engineering, and automotive industries. This research introduces a novel sandwich structure featuring CFRP face sheets and a multi-level negative Poisson's ratio honeycomb core. Experimental and finite element analysis were conducted to assess the impact resistance of both CFRP laminates and the proposed sandwich structure. A damage model incorporating elastic-plastic behaviour was developed and integrated into the ABAQUS software via VUMAT. Experimental validation confirmed the accuracy of the finite element method (FEM). The study shows that matrix tensile damage is the primary damage mode under low-velocity impacts, with the damage extent and damage pattern being significantly influenced by impactor. Laminate stacking sequences have a minor impact on overall mechanical behaviour but can influence the damage response. Crucially, the honeycomb core configuration significantly enhances energy absorption. For example, the double-arrow multi-level honeycomb structure consisting of only two layers exhibits a 21.4% increase in energy absorption compared to the hexagonal honeycomb structure. These insights offer valuable guidance for optimizing composite structures to achieve superior impact resistance and energy absorption.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"205 ","pages":"Article 105399"},"PeriodicalIF":5.1,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144166246","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

Scaling effect of mechanical response for CFST component subjected to impact load: The effect of steel ratio 冲击荷载作用下CFST构件力学响应的标度效应：钢比的影响

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2025-05-19 DOI: 10.1016/j.ijimpeng.2025.105398

Liu Jin, Qian Fu, Renbo Zhang, Jian Li, Xiuli DU

{"title":"Scaling effect of mechanical response for CFST component subjected to impact load: The effect of steel ratio","authors":"Liu Jin, Qian Fu, Renbo Zhang, Jian Li, Xiuli DU","doi":"10.1016/j.ijimpeng.2025.105398","DOIUrl":"10.1016/j.ijimpeng.2025.105398","url":null,"abstract":"<div><div>Due to the existence of scaling effect, the impact resistance of geometrically similar CFST components is no longer similar. So whether the steel ratio will affect the scaling effect of the impact resistance for geometrically similar CFST components has not been clearly concluded. Based on this, in order to study the influence of steel ratio on the scaling effect of the impact resistance, geometrically similar (<em>λ</em>=1,2,3,4) CFST components with seven steel ratios were designed for impact numerical simulation. It is found that the increase of steel ratio weakens the scaling effect of the impact response for geometrically similar CFST components, such as damage deformation, energy absorption and impact force, etc. The main reason is that the increase of steel ratio weakens the difference of plastic deformation range and degree in mid-span impacted area for geometrically similar CFST components during the whole impact process, which leads to a significant reduction in the difference of deflection deformation, contact stiffness, inertial force and stress wave propagation. In addition, this study also proposes the calculation formulas of scaling effect considering the steel ratio. It is expected to provide support for the engineering application promotion and the theoretical in-depth study of impact resistance for the CFST components.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"205 ","pages":"Article 105398"},"PeriodicalIF":5.1,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144147556","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

Interface interaction between cross laminated timber (CLT) and fiber composites under ballistic impact 交叉层压木材（CLT）与纤维复合材料在弹道冲击下的界面相互作用

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2025-05-18 DOI: 10.1016/j.ijimpeng.2025.105394

Juliet Swinea , Peter Stynoski , Andrew Lessel , Erik Poulin , Lauren K. Stewart

{"title":"Interface interaction between cross laminated timber (CLT) and fiber composites under ballistic impact","authors":"Juliet Swinea , Peter Stynoski , Andrew Lessel , Erik Poulin , Lauren K. Stewart","doi":"10.1016/j.ijimpeng.2025.105394","DOIUrl":"10.1016/j.ijimpeng.2025.105394","url":null,"abstract":"<div><div>Enhanced Cross Laminated Timber (ECLT) leverages the layered nature of CLT by introducing historically relevant ballistic resistant materials (e.g. steel, E-glass, etc.) between wood layers to increase overall ballistic resistance. Researchers have explored proof of concept ballistic experiments utilizing different wood species, enhancing materials, and manufacturing techniques since 2017. However, for integration in design standards and development of analytical models, we must predictably understand interactions at the interface between wood and enhancing materials. This article presents the results of 80 ballistic experiments using thermally modified coastal western hemlock and three different fiber-based enhancing materials. Tests were performed at the United States Army Engineer Research Development Center Fragmentation Simulation Facility under a novel protocol aimed to experimentally and physically examine interface interactions at the multi-material interface, considering strain rate dependency and inherent material variability in the wood. The experimental results showed the ballistic resistance increased on average between 34 and 59 Joules (5.1 % and 6.8 % gains), excepting one outlier with the addition of an adhered interface between thermally modified coastal western hemlock CLT and three different fiber enhancing materials. Additionally, post mortem computed tomography imaging showed an increased fracture zone projected area in the CLT ply adjacent to the enhancing material layer that replicated typical interface failure profiles in composite-ceramic armors.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"205 ","pages":"Article 105394"},"PeriodicalIF":5.1,"publicationDate":"2025-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144166245","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 and numerical investigation on projectile penetration resistance of a composite material made of granite rubble and UHPC 花岗岩碎石与UHPC复合材料抗弹丸侵彻性能的实验与数值研究

IF 5.1 2区工程技术

International Journal of Impact Engineering Pub Date : 2025-05-14 DOI: 10.1016/j.ijimpeng.2025.105390

Yaozong Yang , Xiangzhen Kong , Qin Fang , Yong Peng

{"title":"Experimental and numerical investigation on projectile penetration resistance of a composite material made of granite rubble and UHPC","authors":"Yaozong Yang , Xiangzhen Kong , Qin Fang , Yong Peng","doi":"10.1016/j.ijimpeng.2025.105390","DOIUrl":"10.1016/j.ijimpeng.2025.105390","url":null,"abstract":"<div><div>Composite bursting layer made of rock rubble and cementitious matrix has good penetration resistance and superior cost-effectiveness. However, the anti-penetration mechanism of this composite material is still not well understood. A combined experimental and numerical investigation of the anti-penetration mechanism of a composite material composed of granite rubble and ultra-high-performance concrete was carried out in the present study. Firstly, a test of projectile penetration into the composite target was conducted, which provided valuable data including the penetration depth, frontal crater dimension and cross-sectional damage in the composite target. Then, a corresponding numerical model was established based on the random distribution algorithm, Kong-Fang material model and SPG algorithm, which was validated against the conducted penetration test. The validated numerical model was finally used to investigate influences of granite-rubble size, volume fraction, and material strengths on the penetration resistance of the composite targets. Numerical results demonstrated that enhancing penetration resistance of the composite target can be achieved by optimizing rock-rubble size, increasing the strengths of constituent materials, and reducing the volumetric fraction of rock rubble. Corresponding suggestions were given for engineering use as to balance the penetration resistance and cost.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"204 ","pages":"Article 105390"},"PeriodicalIF":5.1,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144105340","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