Analysis of Initiation and Extension of Transverse Lamina Cracking in Multidirectionally Laminated Composites by Total Force Method-Finite Element Method

Abstract:

This paper presents the adaptation of the analytical method for transverse laminacracking in multidirectionally laminated composites to the finite element method. The damageinitiation and extension in a structure made of the laminated composite are evaluated by thedeveloped finite element method. The reduction in the stiffness of the laminated composite thatcaused by the crack growth is evaluated by the total force method. In the present analyses by thedeveloped method, the critical strain of the crack growth is the value of the strain which satisfiesboth energy criterion and stress criterion. To demonstrate the accuracy of the developed method,the analytical results of crack growth in CFRP quasi-isotropic laminate with a circular hole arecompared with experimental results.

• Periodical: Key Engineering Materials (Volumes 243-244)
• Pages: 69-74
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.243-244.69
• Online since: July 2003
• Authors: Tetsuji Kato, Kazuro Kageyama, Isao Kimpara, Isamu Ohsawa, Makoto Kanai, Satoshi Abe, Yasuhisa Masuda
• Keywords: Damage Evolution, Energy Criterion, Finite Element Model (FEM), Multidirectionally Laminated Composite, Stiffness Reduction, Stress Criterion, Transverse Lamina Crack

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