Mode Ⅲ Stress Intensity Factors of Surface Crack in Round Bars
This study presents a numerical investigation on the stress intensity factors (SIF), K of surface cracks in round bars that were obtained under pure torsion loadings or mode III. ANS YS finite element analysis (FEA) was used to determine the SIFs along the crack front of surface cracks embedded in the solid circular bars. 20-node isoparametric singular elements were used around the crack tip by shifting the mid-side node Vi-position close to a crack tip. Different crack aspect ratio, a/b were used ranging between 0.0 to 1.2 and relative crack depth, a/D were ranged between 0.1 to 0.6. Mode I SIF, K1 obtained under bending moment was used to validate the proposed model and it was assumed this proposed model validated for analyzing mode III problems. It was found that, the mode II SIF, F11 and mode III SIF, FⅢ were dependent on the crack geometries and the sites of crack growth were also dependent on a/b and a/D.
Stress Intensity Factor Mode Ⅲ Surface Cracks Finite Element Analysis ANSYS
A.E Ismail A.K Ariffin S. Abdullah M.J Ghazali R. Daud
Faculty of Mechanical & Manufacturing Engineering,Universiti Tun Hussein Onn Malaysia,Parit Raja,Bat Faculty of Engineering and Built Environment,Universiti Kebangsaan Malaysia,Bangi,Selangor,43600 Mal
国际会议
the 2011 International Conference on Key Engineering Materials(ICKEM 2011)(2011关键工程材料国际会议)
三亚
英文
192-196
2011-03-25(万方平台首次上网日期,不代表论文的发表时间)