Engineering analysis of a critical RC straight girder bridge under contact blast in reducing dynamic impact and failure using the FEM-SPH coupling and non-Explosive Reactive Armour

IF 4.4 2区工程技术 Q1 ENGINEERING, MECHANICAL

Engineering Failure Analysis Pub Date : 2025-02-24 DOI:10.1016/j.engfailanal.2025.109422

Somnath Karmakar , Shuvra Saha , Amit Shaw

{"title":"Engineering analysis of a critical RC straight girder bridge under contact blast in reducing dynamic impact and failure using the FEM-SPH coupling and non-Explosive Reactive Armour","authors":"Somnath Karmakar , Shuvra Saha , Amit Shaw","doi":"10.1016/j.engfailanal.2025.109422","DOIUrl":null,"url":null,"abstract":"<div><div>Worldwide terrorist activities have been increasing rapidly, particularly over infrastructure, which strongly demands the identification of failure modes, dynamic response, risk assessment and prevention. Research has continuously improved the shaped charge and ballistic-resistant performance of the structures. Literature updates show that the right material choice may help to achieve the goal. Therefore, the present study selects an existing 20.4 m full RC straight highway girder bridge, over which one layer of the steel-based non-Explosive Reactive Armour (nERA) has been wrapped as protective material using surface-to-surface contact to explore its effect on reducing failure mode and dynamic response of the bridge under contact blast using computer simulation through the coupling of the Finite Element Method (FEM) and Smoothed Particles Hydrodynamics (SPH). In addition, 54 explosives have been applied over the top surface of the approach slab, the earth’s surface at footing level enclosed by both abutments and the top and bottom surfaces of the deck. Specifically, the analysis concentrates on the Damaged contours and shock wave propagations, Damaged contours and particle formation, Effective plastic strain (EPS), Direct damage-reduction of the bridge, and Failure modes. Finally, the effect of the nERA is significantly positive in reducing failure mode and improving the dynamic response.</div></div>","PeriodicalId":11677,"journal":{"name":"Engineering Failure Analysis","volume":"173 ","pages":"Article 109422"},"PeriodicalIF":4.4000,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Engineering Failure Analysis","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1350630725001633","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

Worldwide terrorist activities have been increasing rapidly, particularly over infrastructure, which strongly demands the identification of failure modes, dynamic response, risk assessment and prevention. Research has continuously improved the shaped charge and ballistic-resistant performance of the structures. Literature updates show that the right material choice may help to achieve the goal. Therefore, the present study selects an existing 20.4 m full RC straight highway girder bridge, over which one layer of the steel-based non-Explosive Reactive Armour (nERA) has been wrapped as protective material using surface-to-surface contact to explore its effect on reducing failure mode and dynamic response of the bridge under contact blast using computer simulation through the coupling of the Finite Element Method (FEM) and Smoothed Particles Hydrodynamics (SPH). In addition, 54 explosives have been applied over the top surface of the approach slab, the earth’s surface at footing level enclosed by both abutments and the top and bottom surfaces of the deck. Specifically, the analysis concentrates on the Damaged contours and shock wave propagations, Damaged contours and particle formation, Effective plastic strain (EPS), Direct damage-reduction of the bridge, and Failure modes. Finally, the effect of the nERA is significantly positive in reducing failure mode and improving the dynamic response.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Engineering Failure Analysis 工程技术-材料科学：表征与测试

CiteScore

7.70

自引率

20.00%

发文量

956

审稿时长

47 days

期刊介绍： Engineering Failure Analysis publishes research papers describing the analysis of engineering failures and related studies. Papers relating to the structure, properties and behaviour of engineering materials are encouraged, particularly those which also involve the detailed application of materials parameters to problems in engineering structures, components and design. In addition to the area of materials engineering, the interacting fields of mechanical, manufacturing, aeronautical, civil, chemical, corrosion and design engineering are considered relevant. Activity should be directed at analysing engineering failures and carrying out research to help reduce the incidences of failures and to extend the operating horizons of engineering materials. Emphasis is placed on the mechanical properties of materials and their behaviour when influenced by structure, process and environment. Metallic, polymeric, ceramic and natural materials are all included and the application of these materials to real engineering situations should be emphasised. The use of a case-study based approach is also encouraged. Engineering Failure Analysis provides essential reference material and critical feedback into the design process thereby contributing to the prevention of engineering failures in the future. All submissions will be subject to peer review from leading experts in the field.