Simulation & validation of delamination growth in CFRP specimens under mixed mode loading using cohesive elements

Masood, Nadeem (2016) Simulation & validation of delamination growth in CFRP specimens under mixed mode loading using cohesive elements. In: Proceedings of 14th ISAMPE National Conference on Composites (INCCOM-14), Hyderabad, January 22-23, 2016, Hyderabad, India.

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Abstract

This paper discusses in detail the use of cohesive interface elements for simulation of delamination growth in composites. The work addresses the complexities in the convergence of numerical simulations that arise due to cohesive elements. A systematic way to obtain the best values for cohesive element parameters while finding a balance between accuracy of the results, computation time and numerical stability is presented. Parametric studies on cohesive elements are conducted through simulation of the standard Double cantilever beam (DCB) test in Abaqus/standard and numerical results are validated with test data. The optimized parameters are used to simulate the end-notched flexure (ENF) test and mixed-mode bending (MMB) tests. Numerical results for the above tests are in good agreement with the test data, thereby validating our approach.

Item Type: Conference or Workshop Item (Paper)
Subjects: AERONAUTICS > Aircraft Design, Testing & Performance
ENGINEERING > Structural Mechanics
Depositing User: Mr S Nadeem Masood
Date Deposited: 25 Feb 2020 14:19
Last Modified: 25 Feb 2020 14:19
URI: http://nal-ir.nal.res.in/id/eprint/13311

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