Mixed-mode fracture study of Mode-I plus III and II plus III loading conditions in AA7085 using a new fixture

被引：6
作者：
Maity, Rathin [1 ]
Singh, Akhilendra [1 ]
Paul, Surajit Kumar [1 ]
机构：
[1] Indian Inst Technol Patna, Dept Mech Engn, Bihta 801106, India
来源：
ENGINEERING FRACTURE MECHANICS | 2023年 / 292卷
关键词：
Mode-I plus III; Mode-II plus III; Coupled mode; Crack deflection; Onset of fracture; XFEM; AA; 7085; FINITE-ELEMENT-METHOD; CRACK-GROWTH; CRITERION;
D O I：
10.1016/j.engfracmech.2023.109619
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
This study experimentally examines the onset of fast fracture and crack deflection in AA 7085 for both mode-I + III and mode-II + III fracture modes. A new loading device has been developed by modifying the Richards loading device to induce out-of-plane mode in addition to mode-I and mode-II loading. The specimens assembled with the loading device were loaded using a uniaxial testing machine. Specimen level boundary conditions were derived to determine the fracture parameters at the onset of fracture using XFEM. The deflection angle of the crack and the fracture envelope were compared against standard criteria to predict failure.
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页数：25
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