Experimental and numerical investigation of the dynamic response of water-covered plates subjected to gas mixture blast loading

IF 5.7 1区工程技术 Q1 ENGINEERING, CIVIL

Thin-Walled Structures Pub Date : 2025-03-13 DOI:10.1016/j.tws.2025.113203

Zhenfeng Liu , Xiaojie Li , Dezheng Zhou , Honghao Yan , Xiaohong Wang

{"title":"Experimental and numerical investigation of the dynamic response of water-covered plates subjected to gas mixture blast loading","authors":"Zhenfeng Liu , Xiaojie Li , Dezheng Zhou , Honghao Yan , Xiaohong Wang","doi":"10.1016/j.tws.2025.113203","DOIUrl":null,"url":null,"abstract":"<div><div>To provide a basis for the design of water-protective explosion containment vessels, the dynamic response of circular water-covered and bare plates subjected to blast loading was studied experimentally and numerically in this paper. Firstly, a laboratory experimental apparatus for blast loading with combustible gas was independently developed. A series of experiments were conducted to comparatively study the dynamic strain response at the center of circular plates with varying thicknesses, under conditions both with and without water cover. Subsequently, finite element numerical models were established to further analyze the maximum equivalent strain and maximum displacement at various locations on the water-covered plates. The results show that the presence of water exerts a pronounced damping effect on the attenuation of vibrations, not only significantly reducing the maximum response peak, but also effectively reducing the vibration times at high strains on the plate. The added mass effect of water is relatively limited within the elastic vibration range. In addition, the blast resistance of water decreases with increasing structural stiffness. The Bessel function and quadratic function models established according to the numerical simulation results can effectively predict the maximum displacement distribution of the plate along the radius direction, which provides strong theoretical support for the design of the explosion containment vessel.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"212 ","pages":"Article 113203"},"PeriodicalIF":5.7000,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Thin-Walled Structures","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0263823125002976","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CIVIL","Score":null,"Total":0}

引用次数: 0

Abstract

To provide a basis for the design of water-protective explosion containment vessels, the dynamic response of circular water-covered and bare plates subjected to blast loading was studied experimentally and numerically in this paper. Firstly, a laboratory experimental apparatus for blast loading with combustible gas was independently developed. A series of experiments were conducted to comparatively study the dynamic strain response at the center of circular plates with varying thicknesses, under conditions both with and without water cover. Subsequently, finite element numerical models were established to further analyze the maximum equivalent strain and maximum displacement at various locations on the water-covered plates. The results show that the presence of water exerts a pronounced damping effect on the attenuation of vibrations, not only significantly reducing the maximum response peak, but also effectively reducing the vibration times at high strains on the plate. The added mass effect of water is relatively limited within the elastic vibration range. In addition, the blast resistance of water decreases with increasing structural stiffness. The Bessel function and quadratic function models established according to the numerical simulation results can effectively predict the maximum displacement distribution of the plate along the radius direction, which provides strong theoretical support for the design of the explosion containment vessel.

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

Thin-Walled Structures 工程技术-工程：土木

CiteScore

9.60

自引率

20.30%

发文量

801

审稿时长

66 days

期刊介绍： Thin-walled structures comprises an important and growing proportion of engineering construction with areas of application becoming increasingly diverse, ranging from aircraft, bridges, ships and oil rigs to storage vessels, industrial buildings and warehouses. Many factors, including cost and weight economy, new materials and processes and the growth of powerful methods of analysis have contributed to this growth, and led to the need for a journal which concentrates specifically on structures in which problems arise due to the thinness of the walls. This field includes cold– formed sections, plate and shell structures, reinforced plastics structures and aluminium structures, and is of importance in many branches of engineering. The primary criterion for consideration of papers in Thin–Walled Structures is that they must be concerned with thin–walled structures or the basic problems inherent in thin–walled structures. Provided this criterion is satisfied no restriction is placed on the type of construction, material or field of application. Papers on theory, experiment, design, etc., are published and it is expected that many papers will contain aspects of all three.