On the behaviour of cracks in laminated composite panels

Lakshminarayana, HV and Mahishi, JM and Aruna, HM (1979) On the behaviour of cracks in laminated composite panels. In: Proceedings of the International Conference on Fracture Mechanics in Engineering Application, 26-30 Mar 1979, Bangalore, India.

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The strain energy density fracture criterion is applied to characterize the onset of crack growth in laminated composite panels. Parabolic isoparametric singular and regular finite elements are used to calculate the crack-tip stress intensity factors and hence the strain energy density factors. Numerical results showing the influence of material orthotropy on the crack-tip stress intensity factors in finite geometric configurations are presented. Preliminary experimental observations which lend support to the theoretical predictions are also presented.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Composite materials;Crack propagation;Cracking (Fracturing); Laminates;Stress analysis;Axial strain;Elastic properties; Finite element method;Panels;Strain energy methods;Stress intensity factors13; 13; 13; 13; 13; 13; 13; 13; 13; 13; 13; C13; 13; 13; Composite materials;Crack propagation;cracking13; 13; 13;
Subjects: AERONAUTICS > Aerodynamics
Depositing User: M/S ICAST NAL
Date Deposited: 04 Dec 2006
Last Modified: 24 May 2010 04:23
URI: http://nal-ir.nal.res.in/id/eprint/3582

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