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Paper
Title

Propagation of Matrix Cracking and Induced Delaminatin in Cross-Ply Composite Beams Subjected to Bending Loads

مجله مکانیک سازه های پیشرفته کامپوزیت، دوره: 6، شماره: 1
Year: 1398
COI: JR_MACS-6-1_006
Language: EnglishView: 198
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Authors

Mohammad Bahrami - Department of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran
Amin Farrokhabadi - Department of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran

Abstract:

Due to the mismatch of mechanical properties in composite laminates, propagation of delami-nation is considered as a severe damage mechanism in beams with various lay-up configurations. Delamination can be generated due to matrix cracking propagation or it can also be initiated due to the manufacturing process before using composite beams. Using a micromechanics model, this study is aimed to investigate the bending moment required for matrix cracking and induced delamination in cross-ply composite beams. To that end, a unit cell is selected from the lamina surface in a composite beam containing matrix cracking and delamination. Later, the governing equation of stress and displacement fields are extracted in the unit cell to calculate the strain energy release rate due to the propagation of matrix cracking and induced delamination.  In order to validate this method, the stiffness variations in Carbon-Epoxy cross-ply laminate [90/02]s is examined and the obtained results are compared with the numerical results. It concluded that there is a favorable agreement between the results of the proposed micromechanics model and available numerical results.

Keywords:

Matrix cracking , Delamination , Micromechanics , Unit cell , Strain energy release rate

Paper COI Code

This Paper COI Code is JR_MACS-6-1_006. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/1026100/

How to Cite to This Paper:

If you want to refer to this Paper in your research work, you can simply use the following phrase in the resources section:
Bahrami, Mohammad and Farrokhabadi, Amin,1398,Propagation of Matrix Cracking and Induced Delaminatin in Cross-Ply Composite Beams Subjected to Bending Loads,https://civilica.com/doc/1026100

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Type of center: دانشگاه دولتی
Paper count: 34,196
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