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首页> 外文会议>ASME(American Society of Mechanical Engineers) Pressure Vessels and Piping Conference: Residual Stress, Fitness - for - Service and Manufacturing Processes; 20030720-20030724; Cleveland,OH; US >STUDY OF BURST CONDITIONS OF THIN-WALLED PRESSURE VESSELS SUBJECTED TO HYPERVELOCITY IMPACT
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STUDY OF BURST CONDITIONS OF THIN-WALLED PRESSURE VESSELS SUBJECTED TO HYPERVELOCITY IMPACT

机译：超高速冲击的薄壁压力容器爆破条件研究

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摘要

The present paper is devoted to analysis of burst conditions of thin-walled cylindrical pressure vessels subjected to hypervelocity impact of space debris particles. Two types of gas-filled pressure vessels onboard the International Space Station were considered: inhabited or laboratory pressurized modules and onboard system vessels with a gas under high pressure. The central concern of this study is to determine the border between simple perforation and catastrophic fracture of gas-filled pressure vessels of both types under hypervelocity impact Non-linear fracture mechanics techniques were used to analyze and predict whether a vessel perforation will lead to mere leakage of gas, or whether unstable crack propagation will occur that could lead to catastrophic fracture of the vessel. Damage patterns and mechanisms leading to unstable crack growth are discussed. A model of fracture of an impact damaged pressure vessel is presented. A developed model was successfully applied to the simulation of experimental results obtained at Ernst-Mach-Institute (Germany).
机译：本文致力于分析薄壁圆柱压力容器在空间碎片颗粒超高速冲击下的破裂条件。考虑了国际空间站上的两种类型的充气压力容器：有人居住的或实验室加压的模块以及带有高压气体的机载系统容器。这项研究的重点是确定两种类型的充气压力容器在超高速冲击下的简单穿孔和灾难性破裂之间的边界。非线性破裂力学技术用于分析和预测血管穿孔是否会导致仅泄漏气体，或者是否会发生不稳定的裂纹扩展，从而导致容器发生灾难性断裂。讨论了导致裂纹扩展不稳定的损伤模式和机理。提出了冲击损坏的压力容器的断裂模型。一个成功开发的模型已成功应用于模拟在Ernst-Mach-Institute（德国）获得的实验结果。

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