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石灰岩中应力波衰减机制的试验研究
Authors
寇绍全
杨根宏
虞吉林
Publication date
1 January 1982
Publisher
Abstract
本文提出了分析研究岩石杆中应力波衰减机制(初始微裂纹、节理、剪胀等因素的影响)的一种方法,并相应提出了减少波形振荡,提高试验精度的措施。利用这种方法,对这些因素引起应力波衰减的特点进行了初步探讨。此外还提出了在波传播时幅值无衰减的情况下,从一根杆试验中测得的应变波形,求得包括卸载在内的完整的动态滞迴应力应变关系的方法,这个方法比SHPB法更方便。实验结果说明,完整致密的石灰岩只有在剪张点以下方可当作弹性材料处理
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Institute Of Mechanics,Chinese Academy of Sciences
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Last time updated on 12/02/2018