S. Farsavani Mohammadi, H. Ahmadi, E. Pedram, G. Liaghat
{"title":"单薄和片状纳米氧化铝增强胶凝靶的动态性能试验与数值分析","authors":"S. Farsavani Mohammadi, H. Ahmadi, E. Pedram, G. Liaghat","doi":"10.1007/s43452-025-01172-z","DOIUrl":null,"url":null,"abstract":"<div><p>This study investigates the mechanical performance of cementitious composite targets through nanoparticle addition and target configuration optimization under quasi-static and dynamic loading. This dual approach addresses both material-level and structural-level improvements for impact resistance. Experiments were manufactured by adding three replacement ratios of nano-Al<sub>2</sub>O<sub>3</sub> particles, specifically 1%, 2%, and 4% by weight of cement, to the cementitious composite and tested under quasi-static compressive, split tensile, and high-velocity impact (HVI) loading. The finite element model (FEM) was developed using the Abaqus software package, incorporating the JH-2 material constitutive model calibrated with data from experimental material tests. Furthermore, simulations were conducted to investigate the effects of target thickness and segmentation strategy on the ballistic response of specimens. The experimental results revealed that the total incorporation of nano-alumina particles promotes the specimen’s quasi-static mechanical properties and impact resistance, resulting in substantial mitigation of phenomena, including radial cracking, spalling, scabbing, cone cracking, and shear plugging. The addition of 1 wt%. nano-Al<sub>2</sub>O<sub>3</sub> caused the maximum compressive and tensile strength values, showing an uptrend of 26% and 110%, respectively. Furthermore, including 1.0% nano-Al<sub>2</sub>O<sub>3</sub> particles improved specimens’ ballistic limit velocity (BLV) and energy absorption, showing enhancements of up to 12.7% and 27.2%, respectively. Numerical simulations revealed that increasing the target thickness or subjoining the extra parts improves the BLV, while the damage mechanisms and in situ construction of considered strategies are different. The findings from this study provide valuable insights for enhancing the impact load-bearing capacity of existing and future structures exposed to high-velocity collisions.</p></div>","PeriodicalId":55474,"journal":{"name":"Archives of Civil and Mechanical Engineering","volume":"25 3","pages":""},"PeriodicalIF":4.4000,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s43452-025-01172-z.pdf","citationCount":"0","resultStr":"{\"title\":\"Experimental tests and numerical analysis of the dynamic behavior of thin single and segmented nano-alumina-reinforced cementitious targets\",\"authors\":\"S. Farsavani Mohammadi, H. Ahmadi, E. Pedram, G. Liaghat\",\"doi\":\"10.1007/s43452-025-01172-z\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>This study investigates the mechanical performance of cementitious composite targets through nanoparticle addition and target configuration optimization under quasi-static and dynamic loading. This dual approach addresses both material-level and structural-level improvements for impact resistance. Experiments were manufactured by adding three replacement ratios of nano-Al<sub>2</sub>O<sub>3</sub> particles, specifically 1%, 2%, and 4% by weight of cement, to the cementitious composite and tested under quasi-static compressive, split tensile, and high-velocity impact (HVI) loading. The finite element model (FEM) was developed using the Abaqus software package, incorporating the JH-2 material constitutive model calibrated with data from experimental material tests. Furthermore, simulations were conducted to investigate the effects of target thickness and segmentation strategy on the ballistic response of specimens. The experimental results revealed that the total incorporation of nano-alumina particles promotes the specimen’s quasi-static mechanical properties and impact resistance, resulting in substantial mitigation of phenomena, including radial cracking, spalling, scabbing, cone cracking, and shear plugging. The addition of 1 wt%. nano-Al<sub>2</sub>O<sub>3</sub> caused the maximum compressive and tensile strength values, showing an uptrend of 26% and 110%, respectively. Furthermore, including 1.0% nano-Al<sub>2</sub>O<sub>3</sub> particles improved specimens’ ballistic limit velocity (BLV) and energy absorption, showing enhancements of up to 12.7% and 27.2%, respectively. Numerical simulations revealed that increasing the target thickness or subjoining the extra parts improves the BLV, while the damage mechanisms and in situ construction of considered strategies are different. The findings from this study provide valuable insights for enhancing the impact load-bearing capacity of existing and future structures exposed to high-velocity collisions.</p></div>\",\"PeriodicalId\":55474,\"journal\":{\"name\":\"Archives of Civil and Mechanical Engineering\",\"volume\":\"25 3\",\"pages\":\"\"},\"PeriodicalIF\":4.4000,\"publicationDate\":\"2025-04-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://link.springer.com/content/pdf/10.1007/s43452-025-01172-z.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Archives of Civil and Mechanical Engineering\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s43452-025-01172-z\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, CIVIL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Archives of Civil and Mechanical Engineering","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s43452-025-01172-z","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CIVIL","Score":null,"Total":0}
Experimental tests and numerical analysis of the dynamic behavior of thin single and segmented nano-alumina-reinforced cementitious targets
This study investigates the mechanical performance of cementitious composite targets through nanoparticle addition and target configuration optimization under quasi-static and dynamic loading. This dual approach addresses both material-level and structural-level improvements for impact resistance. Experiments were manufactured by adding three replacement ratios of nano-Al2O3 particles, specifically 1%, 2%, and 4% by weight of cement, to the cementitious composite and tested under quasi-static compressive, split tensile, and high-velocity impact (HVI) loading. The finite element model (FEM) was developed using the Abaqus software package, incorporating the JH-2 material constitutive model calibrated with data from experimental material tests. Furthermore, simulations were conducted to investigate the effects of target thickness and segmentation strategy on the ballistic response of specimens. The experimental results revealed that the total incorporation of nano-alumina particles promotes the specimen’s quasi-static mechanical properties and impact resistance, resulting in substantial mitigation of phenomena, including radial cracking, spalling, scabbing, cone cracking, and shear plugging. The addition of 1 wt%. nano-Al2O3 caused the maximum compressive and tensile strength values, showing an uptrend of 26% and 110%, respectively. Furthermore, including 1.0% nano-Al2O3 particles improved specimens’ ballistic limit velocity (BLV) and energy absorption, showing enhancements of up to 12.7% and 27.2%, respectively. Numerical simulations revealed that increasing the target thickness or subjoining the extra parts improves the BLV, while the damage mechanisms and in situ construction of considered strategies are different. The findings from this study provide valuable insights for enhancing the impact load-bearing capacity of existing and future structures exposed to high-velocity collisions.
期刊介绍：
Archives of Civil and Mechanical Engineering (ACME) publishes both theoretical and experimental original research articles which explore or exploit new ideas and techniques in three main areas: structural engineering, mechanics of materials and materials science.
The aim of the journal is to advance science related to structural engineering focusing on structures, machines and mechanical systems. The journal also promotes advancement in the area of mechanics of materials, by publishing most recent findings in elasticity, plasticity, rheology, fatigue and fracture mechanics.
The third area the journal is concentrating on is materials science, with emphasis on metals, composites, etc., their structures and properties as well as methods of evaluation.
In addition to research papers, the Editorial Board welcomes state-of-the-art reviews on specialized topics. All such articles have to be sent to the Editor-in-Chief before submission for pre-submission review process. Only articles approved by the Editor-in-Chief in pre-submission process can be submitted to the journal for further processing. Approval in pre-submission stage doesn''t guarantee acceptance for publication as all papers are subject to a regular referee procedure.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
