Mixed mode I/III fracture parameters for edge-notched diametrically compressed disc specimen

被引：18

作者：

Bahmani A. ^{[1
]}

Farahmand F. ^{[2
]}

Ataei F. ^{[3
]}

Aliha M.R.M. ^{[4
]}

机构：

[1] Department of Mechanical Engineering, McGill University, Montreal, QC

[2] Department of Mechanical Engineering, Tarbiat Modares University, Tehran

[3] School of Progress Engineering, Iran University of Science and Technology, Tehran

[4] Welding and Joining Research Center, School of Industrial Engineering, Iran University of Science and Technology, Tehran

来源：

Material Design and Processing Communications | 2019年 / 1卷 / 06期

关键词：

edge-notched diametrically compressed (ENDC) specimen; finite element analyses; fracture parameters; mixed mode I/III;

D O I：

10.1002/mdp2.86

中图分类号：

O24 [计算数学];

学科分类号：

070102 ;

摘要：

The applicability of a recently proposed test specimen named the edge-notched diametrically compressed (ENDC) disc was assessed for mixed mode I/III fracture toughness studies. The specimen benefits from simple geometry and does not require complicated test configuration. The finite element analyses of this specimen revealed that pure modes I and III, as well as various intermediate mixed mode I/III deformations, are easily achieved by changing the direction of edge crack relative to the applied diametral compressive load. The modes I and III stress intensity and geometry factors were numerically computed in the midsection of the ENDC specimen using several 3D finite element analyses for different crack depths and inclination angles. Pure mode III angle was also obtained for each crack depth ratio. These assessments showed that the ENDC specimen can be a suitable candidate for studying mixed mode I/III fracture toughness. © 2019 John Wiley & Sons, Ltd.

引用

共 21 条

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