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A study on the effects of three-dimensionalcrack tip constraint in mixed modes problem Numerical and Experimental analysis / lr. Dr. Feizal Bin Yusof, Prof. Madya Choong

A study on the effects of three-dimensionalcrack tip constraint in mixed modes problem Numerical and Experimental analysis_lr. Dr. Feizal Yusof, Prof. Madya Choong

Abstract Failure of engineering structures usually manifest from cracks preceded by local plastic deformation. The characterization of three-dimensional crack tip plastic deformation hence is important to assessment of susceptibility of cracks in structures. Three-dimensional elastic­ plastic techniques are available but application to complex problem are limited. To extend application of assessment of a new approach for three-dimensional crack tip constraint, a three­ dimensional constraint estimation scheme was examined for surface cracked plates with semi­ elliptical surface cracks under tensile and bending loads and deep and shallow through cracks. The J-llcr approach was found to be able to estimate the in-plane and out-of-plane crack-tip constraint along the semi-elliptical crack front by characterising the principal stresses over a dimensionless J/zcro parameter.

Contributor(s): lr. Dr. Feizal Yusof, - Author Associate Prof.Choong Kok Keong - Author Language: English Subject Keywords: local plastic deformation ; cracks ; plates First presented to the public: 5/10/2015 Original Publication Date: 12/21/2020 Previously Published By: Universiti Sains Malaysia Place Of Publication: School of Mechanical Engineering Citation: Extents: Number of Pages - 19 License Grantor / Date Granted:   / ( View License ) Date Deposited 2020-12-21 12:20:10.853 Submitter: Nor Hayati Ismail

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