Effect of cyclic wetting and drying on the pure mode II fracture toughness of sandstone
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- 作者：Wen Hua ; Shiming Dong ; smdong@scu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Yifan Li ; Qingyuan Wang
- 关键词：Sandstone ; Wetting&ndash ; drying ; Cracked straight-through Brazilian disk ; Pure mode II ; Fracture toughness
- 刊名：Engineering Fracture Mechanics
- 出版年：2016
- 出版时间：March 2016
- 年：2016
- 卷：153
- 期：Complete
- 页码：143-150
- 全文大小：1026 K
文摘
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The effects of wetting and drying cycles on rock fracture toughness and crack propagation were investigated using centrally cracked Brazilian disk specimens.
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The degree of degradation of KIIC is always larger than that of KIC.
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The ratio of KIIC to KIC decreases with increasing number of wetting–drying cycles.