Analysis of transverse compression and in-plane shear in unidirectional composites by a progressive damage model in presence of fiber rotation

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2016

Autores

Eskandari, S (Autor) Outra; F.M. Andrade Pires (Autor) FEUP; Camanho, PP (Autor) FEUP; António Torres Marques (Autor) FEUP

Ata de Conferência Internacional

Título: ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials

17th European Conference on Composite Materials, ECCM 2016

26 June 2016 through 30 June 2016

Indexação

Scopus - 0 Citações

Outras Informações

ID Authenticus: P-00M-QEW

Abstract (EN): A continuum damage model for the prediction of the onset, evolution of intra-laminar failure mechanisms and the collapse of structures manufactured in fiber-reinforced plastic laminates was proposed by Maimi et al. based on LARC failure criteria. An extended model is proposed to incorporate finite fiber rotation in fiber reinforced plastic laminates during the continuous damage evolution using continuum mechanics. The model prediction will be assessed with a set of experiments in quasi-static conditions for rectangular, end-loaded, off-axis and transverse compression specimens conducted by Koerber et al. The simulation is carried out in different initial fiber orientation and the final failure strength of each case is calculated. Koerber experimental findings also include fiber rotation measurements which are used for evaluation of the model ability to predict fiber scissoring. Experiments report different failure mechanisms for different specimens that are observed using digital images of the damaged specimens. The proposed model is also capable of capturing the damage mechanisms. Therefore, digital images are compared to numerical results in order to emphasize the ability of the model to predict dominant failure modes.

Idioma: Inglês

Tipo (Avaliação Docente): Científica