Article
Effect of thermal residual stresses on matrix failure under transverse tension at micromechanical level: A numerical and experimental analysis
Author/s | Correa Montoto, Elena
Mantic, Vladislav París Carballo, Federico |
Department | Universidad de Sevilla. Departamento de Mecánica de Medios Continuos y Teoría de Estructuras |
Publication Date | 2011 |
Deposit Date | 2024-04-24 |
Published in |
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Abstract | In the present work the influence at micromechanical scale of thermal residual stresses, originated in the cooling down associated to the curing process of fibrous composites, on inter-fibre failure under transverse tension ... In the present work the influence at micromechanical scale of thermal residual stresses, originated in the cooling down associated to the curing process of fibrous composites, on inter-fibre failure under transverse tension is studied. In particular, the effect of the presence of thermal residual stresses on the appearance of the first debonds is discussed analytically, whereas later steps of the mechanism of damage, i.e. the growth of interface cracks and their kinking towards the matrix, are analysed by means of a single fibre model and making use of the Boundary Element Method (BEM). The results are evaluated applying Interfacial Fracture Mechanics concepts. The conclusions obtained predict, at least in the case of dilute fibre packing, a protective effect of thermal residual stresses against failure initiation, the morphology of the damage not being significantly affected in comparison with the case in which these stresses are not considered. Experimental tests are carried out, the results agreeing with the conclusions of the numerical analysis. |
Funding agencies | Junta de Andalucía Ministerio de Educación y Ciencia (MEC). España Ministerio de Educación y Ciencia (MEC). España Junta de Andalucía |
Project ID. | TEP-02045
TRA2005-06764 TRA2006 08077 TEP-04051 |
Citation | Correa Montoto, E., Mantic, V. y París Carballo, F. (2011). Effect of thermal residual stresses on matrix failure under transverse tension at micromechanical level: A numerical and experimental analysis. Composites Science and Technology, 71 (5), 622-629. https://doi.org/10.1016/j.compscitech.2010.12.027. |
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