On the Development of a Testing Device for Fracture Characterization under Mixed-Mode Loading Conditions

Oskui，Abuzar Es Haghi1; Ebrahimi，Mahmoud2; Attarilar，Shokouh2; Wang，Qudong2; Choupani，Naghdali3; Djavanroodi，Faramarz4

10.1520/STP164320210083

2023

0066-0558

ASTM Special Technical Publication

STP 1643

127-140

Because there is no codified standard for a mixed-mode fracture test, this study, by summing up previous works and investigating their properties, attempts to provide the requirements for standardization of mixed-mode fracture testing. Utilizing the loading device proposed in the present paper can help avoid the drawbacks of the previous methods applied for testing fracture toughness under mixed-mode conditions. The proposed fixture has a perfect symmetry that provides pure in-plane circumstances, preventing undesired third-mode loading conditions and creating a uniform stress state. The three-dimensional finite element models of the Arcan fixture and the suggested loading device were used to obtain the correction factors for the first and second modes. The results were then compared to investigate the variations of the fracture parameters. Moreover, analysis of the dimensionless stress intensity factors (SIFs) obtained for the third mode at various angles of loading led to the conclusion that the unwanted thirdmode loading conditions had a considerable contribution to the Arcan device and, as a result, influenced the values achieved for the first- and second-mode dimensionless SIFs.

finite element method Fracture toughness mixed mode modified Arcan device

第一

英语

EI

20233514637325

Ductile fracture ; Finite element method ; Fixtures (tooling) ; Fracture testing ; Stress analysis ; Stress intensity factors

Machine Tool Accessories:603.2 ; Numerical Methods:921.6 ; Materials Science:951

2-s2.0-85168766658

Scopus

1.Dept. of Mechanics and Aerospace Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.National Engineering Research Center of Light Alloy Net Forming,State Key Laboratory of Metal Matrix Composites,School of Materials Science and Engineering,Shanghai Jiao Tong University,Shanghai,200240,China
3.Dept. of Mechanical Engineering,Gebze Technical University,Kocaeli,41400,Turkey
4.Mechanical Engineering Dept.,Prince Mohammad Bin Fahd University,Al Khobar,31952,Saudi Arabia

Oskui，Abuzar Es Haghi,Ebrahimi，Mahmoud,Attarilar，Shokouh,et al. On the Development of a Testing Device for Fracture Characterization under Mixed-Mode Loading Conditions[C],2023:127-140.