Rate-Sensitive Numerical Analysis of Dynamic Responses of Arched Blast Doors Subiected to Blast Loading

• Published in: Transactions of Tianjin University Vol. 14; no. 5; pp. 348 - 352
• Main Author: 陈力 方秦 章毅 张亚栋
• Format: Journal Article
• Language: English
• Published: 2008
• Subjects: 动态响应; 应变速率; 拱形风门; 风力破坏
• ISSN: 1006-4982; 1995-8196

Current practice in analysis and design of blast doors subjected to blast loading considers only simple boundary conditions and material properties. The boundary conditions and material properties, in fact, have considerable influence on the response of blast doors subjected to blast loading. In this paper, the dynamic responses of a reinforced concrete arched blast door under blast loading were analyzed by the finite element program ABAQUS, combined with a previously developed elasto-viscoplastic rate-sensitive material model. And the effect of the surrounding rock mass and contact effect of the doorframe were also taken into account in the simulation. It is demonstrated that the strain-rate effect has considerable influence on the response of reinforced concrete blast door subjected to blast loading and must be taken into account in the analysis.