Numerical evaluation of the influence of porosity on bending properties of 2D carbon/carbon composites
Numerical simulation with progressive damage criterion is implemented to investigate the effect of porosity on the bending properties of 2D cross-ply carbon/carbon (C/C) composites. The mechanical properties of Pyrocarbon matrix regarding the change of porosity are calculated by using Mori-Tanaka ap...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2018
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| Online Access: | https://eprints.nottingham.ac.uk/48906/ |
| _version_ | 1848797875656458240 |
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| author | Chao, Xujiang Qi, Lehua Tian, Wenlong Hou, Xianghui Ma, WenJing Li, Hejun |
| author_facet | Chao, Xujiang Qi, Lehua Tian, Wenlong Hou, Xianghui Ma, WenJing Li, Hejun |
| author_sort | Chao, Xujiang |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Numerical simulation with progressive damage criterion is implemented to investigate the effect of porosity on the bending properties of 2D cross-ply carbon/carbon (C/C) composites. The mechanical properties of Pyrocarbon matrix regarding the change of porosity are calculated by using Mori-Tanaka approach. Combining with the stiffness degradation scheme, the ultimate bending strengths are calculated in Abaqus though a user-defined subroutine (USDFLD). Delamination is modelled by inserting cohesive elements between two adjacent plies. A good agreement is obtained when the FEM results are compared to three-point bending experiments. The FEM results show that the bending strength decreases greatly with the increase of porosity. When the porosity reaches up to 18%, the bending strength is decreased by 57%. The major fracture behaviors are interlamination delamination and continuous crack damage in 90° plies. With the increase of porosity, more severe interlamination delamination will be slightly aggravated. In addition, the increase of porosity will also accelerate the damage in 90° plies. |
| first_indexed | 2025-11-14T20:10:50Z |
| format | Article |
| id | nottingham-48906 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T20:10:50Z |
| publishDate | 2018 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-489062018-10-16T04:30:28Z https://eprints.nottingham.ac.uk/48906/ Numerical evaluation of the influence of porosity on bending properties of 2D carbon/carbon composites Chao, Xujiang Qi, Lehua Tian, Wenlong Hou, Xianghui Ma, WenJing Li, Hejun Numerical simulation with progressive damage criterion is implemented to investigate the effect of porosity on the bending properties of 2D cross-ply carbon/carbon (C/C) composites. The mechanical properties of Pyrocarbon matrix regarding the change of porosity are calculated by using Mori-Tanaka approach. Combining with the stiffness degradation scheme, the ultimate bending strengths are calculated in Abaqus though a user-defined subroutine (USDFLD). Delamination is modelled by inserting cohesive elements between two adjacent plies. A good agreement is obtained when the FEM results are compared to three-point bending experiments. The FEM results show that the bending strength decreases greatly with the increase of porosity. When the porosity reaches up to 18%, the bending strength is decreased by 57%. The major fracture behaviors are interlamination delamination and continuous crack damage in 90° plies. With the increase of porosity, more severe interlamination delamination will be slightly aggravated. In addition, the increase of porosity will also accelerate the damage in 90° plies. Elsevier 2018-03-01 Article PeerReviewed application/pdf en cc_by_nc_nd https://eprints.nottingham.ac.uk/48906/1/Numerical%20evaluation%20of%20the%20influence%20of%20porosity%20on%20bending%20properties%20of%202Dcarbon.pdf Chao, Xujiang, Qi, Lehua, Tian, Wenlong, Hou, Xianghui, Ma, WenJing and Li, Hejun (2018) Numerical evaluation of the influence of porosity on bending properties of 2D carbon/carbon composites. Composites Part B: Engineering, 136 . pp. 72-80. ISSN 1359-8368 2D C/C composites Numerical simulation Flexural properties Progressive damage http://www.sciencedirect.com/science/article/pii/S1359836816329080?via%3Dihub doi:10.1016/j.compositesb.2017.10.027 doi:10.1016/j.compositesb.2017.10.027 |
| spellingShingle | 2D C/C composites Numerical simulation Flexural properties Progressive damage Chao, Xujiang Qi, Lehua Tian, Wenlong Hou, Xianghui Ma, WenJing Li, Hejun Numerical evaluation of the influence of porosity on bending properties of 2D carbon/carbon composites |
| title | Numerical evaluation of the influence of porosity on bending properties of 2D carbon/carbon composites |
| title_full | Numerical evaluation of the influence of porosity on bending properties of 2D carbon/carbon composites |
| title_fullStr | Numerical evaluation of the influence of porosity on bending properties of 2D carbon/carbon composites |
| title_full_unstemmed | Numerical evaluation of the influence of porosity on bending properties of 2D carbon/carbon composites |
| title_short | Numerical evaluation of the influence of porosity on bending properties of 2D carbon/carbon composites |
| title_sort | numerical evaluation of the influence of porosity on bending properties of 2d carbon/carbon composites |
| topic | 2D C/C composites Numerical simulation Flexural properties Progressive damage |
| url | https://eprints.nottingham.ac.uk/48906/ https://eprints.nottingham.ac.uk/48906/ https://eprints.nottingham.ac.uk/48906/ |