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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Damage and failure in carbon/epoxy filament wound composite tubes under external pressure: Experimental and numerical approaches

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Almeida, Jr., Jose Humberto S. [1] ; Ribeiro, Marcelo L. [2] ; Tita, Volnei [2] ; Amico, Sandro C. [1]
Total Authors: 4
[1] Univ Fed Rio Grande do Sul, PPGE3M, Av Bento Goncalves 9500, BR-91501970 Porto Alegre, RS - Brazil
[2] Univ Sao Paulo, Sao Carlos Sch Engn, Dept Aeronaut Engn, Av Joao Dagnone 1100, Sao Carlos, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: MATERIALS & DESIGN; v. 96, p. 431-438, APR 15 2016.
Web of Science Citations: 14

In this work, damage and failure in carbon fiber reinforced epoxy filament wound composite tubes were thoroughly evaluated through a proposed damage model, which is able to identify different failure modes. Moreover, a non-linear finite element model based on the arc length method was developed. The tubes were manufactured via dry-filament winding using T700 towpregs, and subjected to external pressure tests to evaluate computational analyses. Numerical results indicated that the tubes with a diameter-to-thickness ratio (d/t) lower than 20:1 fail by buckling, whereas the tube {[}90 +/- 55(12)/90], which has a higher d/t ratio presented failure primarily driven by in-plane shear, with delaminations. These results were compared with experimental tests, and relative differences in external pressure strengths were lower than 8.4%. The developed model presented a low computational cost and a very good agreement with experimental results, being very attractive to both academic and industrial sectors. (C) 2016 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 15/13844-8 - Finite element formulation and delamination models for composite materials.
Grantee:Marcelo Leite Ribeiro
Support type: Regular Research Grants