Progressive Failure Envelopes for Composite Laminates
Author(s):Tomme: 63 (67) | Fascicle: 1 | 2017
Pages: 31-40
Abstract text:
A progressive failure analysis for composite laminates is carried out in the paper, based on a failure criteria initiation and a failure evolution law. The maximum strains failure criterion is selected and the material stiffness discount procedure is used as method to investigate the damage evolution. Four cases of specially orthotropic composite laminates with different configurations are analysed: cross-ply, angle-ply, balanced and quasi-isotropic laminates. The multi-layered elements are selected in such a way that the influence of fibre orientations on the type of failure which may occur, can be noticed at a macromechanical scale. The results are presented in terms of comparative representations of progressive failure envelopes, according to the plies failure stages, for each analysed composite laminate.
Key Words:
composite laminates; failure stages; failure envelope; progressive failure; stiffness discount method
Author(s) Information
Iuliana Dupir (Hudişteanu)Affiliation: „Gheorghe Asachi” Technical University of Iaşi, Faculty of Civil Engineering and Building Services
Email: iulianahudisteanu@ce.tuiasi.ro
Nicolae Ţăranu
Affiliation: „Gheorghe Asachi” Technical University of Iaşi, Faculty of Civil Engineering and Building Services
Email:
Liliana Bejan
Affiliation: „Gheorghe Asachi” Technical University of Iaşi, Faculty of Civil Engineering and Building Services
Email:
Gabriel Oprişan
Affiliation: „Gheorghe Asachi” Technical University of Iaşi, Faculty of Civil Engineering and Building Services
Email:
Dragoş Ungureanu
Affiliation: „Gheorghe Asachi” Technical University of Iaşi, Faculty of Civil Engineering and Building Services
Email:
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