Experimental investigation on strength, deformation, and failure behaviour of sandstone under various loading paths

被引：0

作者：

Zhang, Tao ^{[1
]}

Liu, Xiaoli ^{[2
]}

机构：

[1] Changsha Univ Sci & Technol, Sch Civil Engn, Changsha 410114, Peoples R China

[2] Tsinghua Univ, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China

来源：

ENGINEERING FRACTURE MECHANICS | 2025年 / 326卷

关键词：

Sandstone; Triaxial cyclic loading; Different loading paths; Mechanical properties; Failure Characteristics;

D O I：

10.1016/j.engfracmech.2025.111429

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

This study investigates the strength, deformation, and failure characteristics of sandstone specimens under different loading paths and examines the impact of various loading histories on the mechanical behavior of sandstone after failure. The findings indicated that the loading path and history influence the strength and deformation behaviors in sandstone. The irreversible strain, elastic modulus, and Poisson's ratio of sandstone specimens vary significantly across different loading paths. The loading history exerts a greater impact on the irreversible volumetric strain of the sandstone specimens than on the irreversible axial and lateral strains, elastic modulus, and Poisson's ratio as the number of cycles increases. Typically, shear failure occurs in sandstone specimens under various loading paths, with each failed specimen exhibiting a diagonal crack. The experimental results provide important technical reference for geotechnical engineering involving sandstone in complex loading paths.

引用

页数：20

共 37 条

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