Stress Intensity Factors for Cracked Finite Plates with Mixed Boundary Condition. (8th October 2013)

• Record Type: Journal Article
• Authors: Hu, Zheyuan; Zhu, Zheming; Feng, Ruoqi; Hu, Rong
• Other Names: Mekheimer k. Academic Editor.; Sahin A. Z. Academic Editor.; Wang G.-J. Academic Editor.
• Is Part Of: ISRN mechanical engineering. Volume 2013(2013)
• Publication Date: 2013-10-08
• Subjects: Mechanical engineering -- Periodicals; Mechanical engineering; Periodicals; Electronic journals; 621
• DOI: 10.1155/2013/471458
• Languages: English
• ISSNs: 2090-5122

Abstract

Abstract : The mixed boundary problems for finite plates with one crack or two collinear cracks are studied. Complex stress functions that satisfy the equilibrium equations and compatibility conditions in the cracked plate as well as the stress condition on crack surfaces are presented. Four models, that is, a square plate with one crack or with two collinear cracks and an airfoil-shaped plate with one crack or with two collinear cracks, are established. The unknown coefficients of the complex stress functions are determined by using boundary collocation method (BCM). The effects of crack orientation, crack distance, and boundary condition on SIFs are investigated by combining with BCM, and the corresponding photoelastic experiments are conducted. The test results generally agree with the BCM calculation results.