A Numerical Study on the Progressive Failure of 3D Four-Directional Braided Composites
Author
Source
Advances in Materials Science and Engineering
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-12-29
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
The complexity of the microstructure makes the strength prediction and failure analysis of 3D braided composites difficult.
A new unit cell geometrical model, taken as the representative volume element (RVE), is proposed to describe the yarn configuration of 3D braided composites produced by the four-step 1 × 1 method.
Then, based on the periodical boundary conditions, a RVE-based micromechanical model by using the nonlinear finite element method has been presented to predict the progressive damage and the strength of 3D braided composites subjected to tensile loading.
The numerical model can simulate the effect of damage accumulation on the tensile stress-strain curve by combining the proposed failure criteria and the stiffness degradation model.
The longitudinal shear nonlinearity of braiding yarn is considered in the model.
To verify the model, two specimens with typical braiding angles were selected to conduct the simulations.
The predicted stress-strain curves by the model compared favorably with the experimental data, demonstrating the applicability of the micromechanical finite element model.
The effect of the nonlinear shear parameter on the tensile stress-strain curve was discussed in detail.
The results indicate that the tensile mechanical behaviors of 3D braided composites are affected by both the yarn shear nonlinearity and the damage accumulation.
American Psychological Association (APA)
Xu, Kun. 2013. A Numerical Study on the Progressive Failure of 3D Four-Directional Braided Composites. Advances in Materials Science and Engineering،Vol. 2013, no. 2013, pp.1-14.
https://search.emarefa.net/detail/BIM-477631
Modern Language Association (MLA)
Xu, Kun. A Numerical Study on the Progressive Failure of 3D Four-Directional Braided Composites. Advances in Materials Science and Engineering No. 2013 (2013), pp.1-14.
https://search.emarefa.net/detail/BIM-477631
American Medical Association (AMA)
Xu, Kun. A Numerical Study on the Progressive Failure of 3D Four-Directional Braided Composites. Advances in Materials Science and Engineering. 2013. Vol. 2013, no. 2013, pp.1-14.
https://search.emarefa.net/detail/BIM-477631
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-477631