Study of measuring mode III fracture toughness of sandstone disk specimen 
with an edged crack

KUO Chun-chih; HSIEH Chi-tai; WANG Chein-lee

doi:10.16285/j.rsm.2016.S1.034

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Study of measuring mode III fracture toughness of sandstone disk specimen with an edged crack

更新时间：2026-06-25

- Study of measuring mode III fracture toughness of sandstone disk specimen with an edged crack
- Vol. 37, Issue S1, Pages: 263-266(2016)
- 作者机构：
  
  1. 成功大学资源工程系,台湾,台南,70101
  2. 台湾大学土木系,台湾,台北,10167
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2016.S1.034
  CLC： TU452
- Online First：09 June 2018，
  
  Published：2016
- 稿件说明：
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KUO Chun-chih, HSIEH Chi-tai, WANG Chein-lee. Study of measuring mode III fracture toughness of sandstone disk specimen with an edged crack[J]. 2016, 37(S1): 263-266.
DOI：

KUO Chun-chih, HSIEH Chi-tai, WANG Chein-lee. Study of measuring mode III fracture toughness of sandstone disk specimen with an edged crack[J]. 2016, 37(S1): 263-266. DOI： 10.16285/j.rsm.2016.S1.034.

摘要

针对含边缘裂缝之砂岩试体受反平面剪力情形进行了III型断裂韧度量测试验，搭配相关所推导之理论公式求取砂岩III型断裂韧度。研究试验条件为无围压及单轴荷重加载下进行III型断裂试验，且针对试体受高温后之性质改变为变量条件加以探讨。研究结果表明，以该方式进行III型断裂韧度之量测，为可靠且稳定；砂岩经历温度在200 ℃前，试体III型断裂韧度会提升，之后呈现下降，到600 ℃，下降趋于平缓；随着烧结温度的提升，单压强度、动态杨氏模量、动态泊松比与III型断裂韧度皆有下降之趋势，且试体出现熔融样态，表面出现明显微裂纹。

Abstract

This study conduct a mode III fracture toughness measurement test on a sandstone specimen with an edge crack in an anti-plane

shear-loading situation and obtain the mode III fracture toughness by using derived theoretical formulas. The testing conditions do not include confining pressure

and the mode III fracture test is conducted under a uniaxial load application. In addition

the study used a change in specimen properties

caused by exposure to high temperature

as a variable condition for further discussion. The research results show that the proposed method of performing the mode III fracture toughness test is reliable and stable. Heating at temperatures up to 200 ℃ enhance the sandstone specimen’s mode III fracture toughness. The toughness decline after 200 ℃ and then leveled off after reaching 600 ℃. The uniaxial compressive strength

dynamic Young’s modulus

dynamic Poisson’s ratio

and mode III fracture toughness show a declining trend following an increase in sintering temperature. The specimen appeared to be molten

and evident micro cracks appear on the surface.

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