{"title":"Experimental study of damage modes of RC and RCS walls under combined loading of fragments and shock waves","authors":"","doi":"10.1016/j.ijimpeng.2024.105065","DOIUrl":null,"url":null,"abstract":"<div><p>A pressing issue for reinforced concrete walls, which are commonly used as building structures, is how the fragments and shock waves generated by the explosion of a cased charge affect the concrete structure. In this paper, the damage modes of reinforced concrete walls (RC walls) and reinforced concrete-steel composite walls (RCS walls) under the combined loading of fragments and shock waves are investigated by experimental methods, and the effects of wall thickness, strength, stand-off distance, and thickness of the steel plate on the back on the damage modes of the walls are discussed. Based on the experimental data, the damage modes of the walls were classified into three classes. In comparison, the installation of steel plates on the back of concrete walls was found to be a significant means of protection, effectively preventing the penetration of metal fragments and the splashing of concrete fragments.</p></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":null,"pages":null},"PeriodicalIF":5.1000,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Impact Engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0734743X24001891","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
引用次数: 0
Abstract
A pressing issue for reinforced concrete walls, which are commonly used as building structures, is how the fragments and shock waves generated by the explosion of a cased charge affect the concrete structure. In this paper, the damage modes of reinforced concrete walls (RC walls) and reinforced concrete-steel composite walls (RCS walls) under the combined loading of fragments and shock waves are investigated by experimental methods, and the effects of wall thickness, strength, stand-off distance, and thickness of the steel plate on the back on the damage modes of the walls are discussed. Based on the experimental data, the damage modes of the walls were classified into three classes. In comparison, the installation of steel plates on the back of concrete walls was found to be a significant means of protection, effectively preventing the penetration of metal fragments and the splashing of concrete fragments.
期刊介绍:
The International Journal of Impact Engineering, established in 1983 publishes original research findings related to the response of structures, components and materials subjected to impact, blast and high-rate loading. Areas relevant to the journal encompass the following general topics and those associated with them:
-Behaviour and failure of structures and materials under impact and blast loading
-Systems for protection and absorption of impact and blast loading
-Terminal ballistics
-Dynamic behaviour and failure of materials including plasticity and fracture
-Stress waves
-Structural crashworthiness
-High-rate mechanical and forming processes
-Impact, blast and high-rate loading/measurement techniques and their applications