Volume 17, Issue 10 (1-2018)
Modares Mechanical Engineering 2018, 17(10): 375-384 |
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farrokhabadi A, madadi H R. Evaluation of the matrix cracking and induced delamination formation in cross-ply composite laminates under tension loading. Modares Mechanical Engineering 2018; 17 (10) :375-384
URL: http://mme.modares.ac.ir/article-15-7175-en.html
URL: http://mme.modares.ac.ir/article-15-7175-en.html
1- faculty member/1Department of Mechanical Engineering, TarbiatModares University
2- Department of Areospace,Mechanical Engineering, Tarbiat modares university, Tehran,Iran
2- Department of Areospace,Mechanical Engineering, Tarbiat modares university, Tehran,Iran
Abstract: (5771 Views)
Studying the behavior of composite materials reveals that various types of failure modes occur when material experiences different loading conditions, which may have a significant impact on performance and properties of a structure. In this research, we study the mechanical response of orthogonal multi-layers by considering different failure modes at micro-scale and their development in macro-scale. For this purpose, the effect of the emergence and growth of fiber separation and subsequent formation of matrix cracks are investigated in the micro-scale. Furthermore, interlayer separation caused by leaving the matrix are studied in macro-scale. To model the separation of fiber matrix which is the first dominant failure mode, the sticky area method is used. The model verification and obtained results are compared with the previous research. Then, XFEM method is used to take into account the failure mode of matrix. Finally, using of the sticky area method, we are able to simulate the separation of matrix layers. The FE-program Abaqus via its user scripting interface (Python) are employed in this research for modeling of fibers embedded into matrix.
Keywords: Micromechanics, Representative volume element, Cohesive zone, Matrix cracking, induced delamination, Extended finite element method
Article Type: Research Article |
Subject:
Composites
Received: 2017/06/19 | Accepted: 2017/09/24 | Published: 2017/10/27
Received: 2017/06/19 | Accepted: 2017/09/24 | Published: 2017/10/27
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