Experimental and numerical analyses of mixed mode crack initiation angle

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منو

" Experimental and numerical analyses of mixed mode crack initiation angle "
Jafar Husain Ali Al Bin Mousa

Document Type	:	Latin Dissertation
Language of Document	:	English
Record Number	:	53155
Doc. No	:	TL23109
Call number	:	‭1438500‬
Main Entry	:	Jafar Husain Ali Al Bin Mousa
Title & Author	:	Experimental and numerical analyses of mixed mode crack initiation angle\ Jafar Husain Ali Al Bin Mousa
College	:	King Fahd University of Petroleum and Minerals (Saudi Arabia)
Date	:	2006
Degree	:	M.S.
student score	:	2006
Page No	:	127
Abstract	:	The main objective of this study is to predict the crack initiation angle for mixed mode fracture using both photoelasticity and numerical techniques. The FE code "ANSYS" is used to estimate the SIF numerically. The estimated value of the SIF is going to be incorporated into crack initiation criteria to predict the crack initiation angle. Six criteria were considered in this analysis and these are the maximum tangential stress (MTS) criterion, the minimum strain energy density (S) criterion, the maximum dilatational strain (T) criterion, the maximum triaxial stress (M) criterion, the modified MTS criterion (M.MTS) and the (R) criterion. A Polycarbonate sheet of 3mm thickness was used for manufacturing single edge crack specimens. All specimens have the same crack length but different angles of inclination namely, 0°, 10°, 20°, 30° and 40°. In the experimental analysis, the specimens were loaded until the crack initiated and the angle is measured to validate both techniques. A new model based on numerical results is proposed for estimating the geometric correction factor Y for an inclined edge crack panel. (Abstract shortened by UMI.)
Subject	:	Applied sciences; Mechanical engineering; 0548:Mechanical engineering
Added Entry	:	King Fahd University of Petroleum and Minerals (Saudi Arabia)