Deformation and failure of profiled stainless steel blast wall panels. Part III: finite element simulations and overall summary

被引:49
作者
Langdon, GS [1 ]
Schleyer, GK [1 ]
机构
[1] Univ Liverpool, Impact Res Ctr, Dept Engn, Liverpool L69 3GH, Merseyside, England
基金
英国工程与自然科学研究理事会;
关键词
blast walls; finite elements; buckling; modelling; corrugations;
D O I
10.1016/j.ijimpeng.2004.08.002
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
This three-part article presents the results of experimental, analytical and numerical studies on the response of (1)/(4) scale stainless steel blast wall panels and connection systems. The panel design was based on a deep trough trapezoidal profile with welded angle connections top and bottom and free sides. The loading applied to the panel was a triangular pulse pressure representative of a gas explosion overpressure. The aim of this work was to investigate the influence of the connection detail on the overall performance of the panel/connection system under pulse pressure loading and to develop appropriate analytical and numerical models for correlation with the test results. Part I reported on the experimental investigations, whilst the analytical modelling considerations were examined in Part II. Finite element analysis, with ABAQUS, was used to simulate the blast wall panel behaviour and is discussed in Part III. Large permanent plastic deformations were produced in the panels without rupture, and localised buckling developed at the centre of the corrugations. The work highlights the importance of correctly modelling the support details and the variation in strength with blast direction (the blast wall panels being stronger in the design direction). The modelling approaches predict a design capacity that is 39% higher than the current design guidance predicts, as a result of modelling the supports and including membrane action. (c) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码:988 / 1012
页数:25
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