高能气体冲击载荷作用下高压容器仓排放孔膜片损伤模式及机理研究

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振动与冲击 ›› 2019, Vol. 38 ›› Issue (23) : 146-151.

论文

张红艳1，蔡宣明1，马铁华2，张瑜2，范志强1，高玉波1

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Damage mode and mechanism for membrane of discharge hole of high pressure vessel under high energy gas impact load

ZHANG Hongyan1, CAI Xuanming1, MA Tiehua2, ZHANG Yu2, FAN Zhiqiang1, GAO Yubo1

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文章历史 +

摘要

针对高压容器仓内高能爆炸气体对排放口膜片结构毁伤模式无法准确有效预估，常出现提前破膜和不破模危险情况，进而对含预制损伤孔洞Q235钢结构膜片在爆炸冲击载荷作用下的宏细观损伤特性进行研究。基于高压爆炸装置，对含预制损伤孔洞Q235钢结构膜片抗爆毁伤效应进行一系列试验研究，结合试验研究结果，探索七孔枪药爆炸冲击载荷能量释放行为与相关参量之间的量化关系，进而为膜片毁伤机理研究提供理论依据，并建立膜片损伤孔洞尺寸与爆炸冲击载荷峰值压力之间的联系规律，最后，基于J-C模型的动态本构关系及失效准则对膜片破坏模式进行数值模拟研究。结果表明，随着爆炸冲击载荷压力地不断增大，含预制孔洞损伤膜片主要呈现均匀性损伤孔洞、边缘性应力集中撕裂、以及剪切冲塞等宏观损伤模式；建立的能量释放关系、以及含预制损伤膜片损伤孔洞尺寸与爆炸峰值压力之间地内在关联为多尺度损伤机理研究提供了量化依据；数值模拟中的膜片破坏形态及损伤孔洞尺寸与试验结果基本吻合，该数值模拟研究可为多尺度试验研究提供借鉴。

Abstract

Aiming at problems of damage mode of discharge hole membrane structure caused by high energy blast gas of high pressure vessel being unable to predict accurately and effectively and existing dangerous cases of membrane early breaking and non-membrane breaking, the macro and micro damage characteristics of Q235 steel structure membranes with pre-fabricated damage hole under blast impact load were studied.Based on high-pressure blast device, a series of tests were conducted for the anti-blast damage effect of membranes above mentioned.Combining with test results, quantitative relations among seven-hole gunpowder blast impact load energy release behavior and relevant parameters were explored to provide the theoretical basis for studying membrane damage mechanism, and establish the relation between membrane damaged hole size and peak pressure of blast impact load.Finally, based on the dynamic constitutive relation and failure criterion of J-C model, the membrane failure mode was simulated numerically.The results showed that with increase in blast impact load pressure, membranes with prefabricated hole mainly reveal macro-damage modes, such as, uniform damage holes, edge stress concentration tearing and shear plug; the built energy release relations and the inner correlation between damaged hole size and peak pressure of blast impact load provide a quantitative basis for studying multi-scale damage mechanism; membrane failure forms and damaged hole size obtained with numerical simulation agree well with test results.

导出引用

张红艳1，蔡宣明1，马铁华2，张瑜2，范志强1，高玉波1. 高能气体冲击载荷作用下高压容器仓排放孔膜片损伤模式及机理研究[J]. 振动与冲击, 2019, 38(23): 146-151

ZHANG Hongyan1, CAI Xuanming1, MA Tiehua2, ZHANG Yu2, FAN Zhiqiang1, GAO Yubo1. Damage mode and mechanism for membrane of discharge hole of high pressure vessel under high energy gas impact load[J]. Journal of Vibration and Shock, 2019, 38(23): 146-151

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