The shear behaviors of concrete-gypsum specimens containing double edge cracks under four-point loading conditions

被引：12
作者：
Fu, Jinwei [1 ]
Haeri, Hadi [1 ]
Sarfarazi, Vahab [2 ]
Asgari, Kaveh [3 ]
Marji, Mohammad Fatehi [4 ]
机构：
[1] North China Univ Water Resources & Elect Power, Sch Civil Engn & Transportat, Zhengzhou 450046, Peoples R China
[2] Hamedan Univ Technol, Dept Min Engn, Hamadan, Iran
[3] Shahid Bahonar Univ Kerman, Dept Min Engn, Kerman, Iran
[4] Yazd Univ, Inst Engn, Fac Min & Met, Dept Mine Exploitat Engn, Yazd, Iran
来源：
THEORETICAL AND APPLIED FRACTURE MECHANICS | 2022年 / 119卷
基金：
中国国家自然科学基金;
关键词：
Shear behavior; Concrete; Gypsum; Edge joint; PFC2D; ROCK JOINTS; SHOTCRETE; MODEL;
D O I：
10.1016/j.tafmec.2022.103361
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In this investigation, the fracture behavior of concrete-gypsum samples consisting of edge joints (planer and echelon joints) under four-point bending tests has been investigated using numerical simulation and experimental testing. For this purpose, concrete and gypsum rectangular samples with a dimension of 30 cm * 15 cm * 5 cm have been prepared. These slabs have edge notches in their volume. The lengths of these notches vary by 2 cm in increments of 2 cm, from 2 cm to 6 cm. The slabs were attached with glue. This complex was tested and simulated numerically under four-point loading conditions. The results indicate that the crack growth trajectory is affected by the type of slab material. The strength of samples is controlled by notch length. Numerical simulation outputs are in good accordance with experimental test results.
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页数：15
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