Abstract
A finite element analysis of the damage accumulation during uniaxial loading of notched CFRP has been performed. Two lay-ups were considered: (0,90)s and (0,90±45)s. The elastic case has been considered first, by using shell elements with superimposed layers. The results are compared with the experimental ones obtained at low loads. At higher loads, non-linearities are observed due to mainly intralaminar and interlaminar damage accumulation. To modelize this behaviour, a numerical simulation of the tests has been made with the finite element code ABAQUS. The capability of the code to account for a user defined material was used, first to define the elastic behaviour of the laminates, then to introduce damage with the help of the continuum damage mechanics formalism. Only progression of interlaminar damage is considered, but a fixed delamination zone has been examined and its influence on stress profile, stress strain curves are compared with the experimental results.
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© 1989 Elsevier Science Publishers Ltd
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Valentin, D., Cailletaud, G., Renault, M. (1989). Application of Continuum Damage Mechanics to Post Failure Analysis of Notched Cross Plied Laminates. In: Marshall, I.H. (eds) Composite Structures 5. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-1125-3_51
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DOI: https://doi.org/10.1007/978-94-009-1125-3_51
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-6998-4
Online ISBN: 978-94-009-1125-3
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