Mechanisms of transverse cracking induced by adjacent ply matrix cracks in composite laminates
| Title: | Mechanisms of transverse cracking induced by adjacent ply matrix cracks in composite laminates |
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| Authors: | Carrère, Nicolas, Doitrand, Aurélien, Conan, Mathilde, Martin, Eric |
| Source: | Comptes Rendus. Mécanique, Vol 353, Iss G1, Pp 359-377 (2025) |
| Publisher Information: | Académie des sciences, 2025. |
| Publication Year: | 2025 |
| Collection: | LCC:Materials of engineering and construction. Mechanics of materials |
| Subject Terms: | Finite fracture mechanics, Coupled criterion, Laminates, Crack re-initiation, Materials of engineering and construction. Mechanics of materials, TA401-492 |
| More Details: | Cracking in composite laminates containing θ-plies adjacent to 90° plies is studied experimentally and numerically using the coupled criterion and finite element calculations. Different damage mechanisms are considered, namely transverse cracking in 90°, cracking in θ-plies, or debonding between adjacent misoriented plies. The influence of the stacking sequence on the damage mechanism sequence is investigated. Experimental observations of the composite edge under tensile loading evidence θ-ply cracking (i) at an imposed strain level much larger than first transverse cracking in 90° ply for a sufficiently large orientation mismatch between adjacent plies or (ii) at a similar imposed strain level if the mismatch angle between two adjacent plies is small. The latter phenomenon may be mitigated by the presence of a 0° ply between the 90° and the θ-plies.These conclusions are supported by numerical simulation of the experimentally observed damage mechanisms, evidencing a change in the damage mechanism sequence depending on the θ-ply misorientation. The numerical simulations also highlight that debonding between adjacent plies may occur as it becomes more favorable that adjacent ply crack re-initiation for sufficiently large adjacent ply mismatch angle. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English French |
| ISSN: | 1873-7234 |
| Relation: | https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.5802/crmeca.286/; https://doaj.org/toc/1873-7234 |
| DOI: | 10.5802/crmeca.286 |
| Access URL: | https://doaj.org/article/90650c594bbb4c1daa75f16a89a92f40 |
| Accession Number: | edsdoj.90650c594bbb4c1daa75f16a89a92f40 |
| Database: | Directory of Open Access Journals |
| ISSN: | 18737234 |
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| DOI: | 10.5802/crmeca.286 |
| Published in: | Comptes Rendus. Mécanique |
| Language: | English French |