A model for predicting J-integral of surface cracks in round bars under combined mode I loading

International Research and Innovation Summit 2017

Ismail, Al Emran^1 ; Noor, Fazimah Mat^1 ; Mohamad, Zaleha^1 ; Madlan, Mohd Amran^1 ; Zulafif, M.^1 ; Rasidi Ibrahim, M.^1 ; Hassan, Mohd Fahrul^1 ; Ariffin, A.M.T.^1 ; Yunos, Muhamad Zaini^1

Mechanical Failure Prevention and Reliability (MPROVE), Center of Research, Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, Johor, Batu Pahat

86400, Malaysia^1

关键词: Crack fronts;    Cylindrical bars;    J integral;    Limit Load;    Mode I loadings;    Reference stress method;    Surface cracks;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/226/1/012015/pdf
DOI  :  10.1088/1757-899X/226/1/012015

来源: IOP

【 摘 要 】

This study presents a method to develop an analytical aspect for J-integral prediction of surface crack in round bars under combined mode I loading. This technique is based on the local limit load approach considering a plastic deformation across the crack ligament. Then, the developed limit load is then combined with the reference stress method to predict J-integral along the crack front of surface crack in cylindrical bars.