以四點彎曲試驗量測不同溫度作用下砂岩複合型斷裂韌度之研究

Translated title of the contribution: A Study of the Measurement of Mixed Mode Fracture Toughness of Sandstones Under Various Thermal Conditions by Four-Point Bending Experiments

Chein Lee Wang, Yu Yuan Chang, Biing Rur Shih, Chun Chih Kuo

Research output: Contribution to journalArticlepeer-review

Abstract

This study proposes a single edge-cracked bending specimen under four-point bending configuration to measure the mixed-mode fracture toughness of rocks. The testing materials are sandstones. This study arranges the experimental setups of four-point bending tests for measurements of modes I + II fracture toughness. There are five different loading conditions for the mode I + II fracture toughness. These loading conditions are one mode I, three different modes I + II and one mode II. This study considers three thermal conditions: 25°C, 300°C, and 600°C. Mixed Modes fracture toughness for I + II are calculated. One observes that the mode I + II fracture toughnesses in 25°C condition are much higher than those in 300°C and 600°C conditions. Therefore, this study effectively utilizes a simple four-pointbending test to measure the mixed-mode fracture toughness of sandstones.

Translated title of the contributionA Study of the Measurement of Mixed Mode Fracture Toughness of Sandstones Under Various Thermal Conditions by Four-Point Bending Experiments
Original languageChinese
Pages (from-to)623-633
Number of pages11
JournalJournal of the Chinese Institute of Civil and Hydraulic Engineering
Volume31
Issue number7
DOIs
Publication statusPublished - 2019 Nov 1

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering

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