MATEC Web Conf.
Volume 254, 2019XXIII Polish-Slovak Scientific Conference on Machine Modelling and Simulations (MMS 2018)
|Number of page(s)||12|
|Section||Modelling of Structural Materials, Composites and Nanomaterials|
|Published online||15 January 2019|
Determination of the laminate strains using discrete damage mechanics
Department of Applied Mechanics, Faculty of Mechanical Engineering, University of Zilina, Univerzitná 1, 010 26 Žilina, Slovakia email@example.com
2 Faculty of Mechatronics and Machine Building, Kielece University of Technology al. Tysiąclecia Państwa Polskiego 7 25-314 Kielce, Poland firstname.lastname@example.org
3 J. E. Purkyne University in Usti nad Labem, Faculty of Production Technology and Management, Pasteurova 3334/7, 400 96 Usti nad Labem, Czech Republic email@example.com
* Corresponding author: firstname.lastname@example.org
In this paper discrete damage mechanics (DDM) is used to predict inter-laminar transverse and shear damage initiation and evolution in terms of the fracture toughness of the laminate. The finite element method (FEM) is one of the most widely and most popular numerical methods for analyzing composite structures, therefore ANSYS commercial software is used for analysis of layered plate composite structure reinforced with long unidirectional fibers with Carbon/Epoxy material. Because ANSYS does not have a built-in capability for calculating crack density, we have to use plugin. A methodology for determination of the fracture toughness is based on fitting DDM model and these data are obtained from literature. Also, prediction of modulus vs. applied strain is contrasted with ply discount results and the effect of in situ correction of strength is highlighted. Evaluation of matrix cracking detected in lamina has been solved using return mapping algorithm.
© The Authors, published by EDP Sciences, 2019
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