Thick-level-set modeling of the dynamic double cantilever beam test

Conference paper (2017)

Authors

Y. Liu Applied Mechanics - CEG
Frans van der Meer Applied Mechanics - CEG
LJ Sluys Materials- Mechanics- Management & Design
Research Group
Applied Mechanics (CEG) (TU Delft)
Copyright: © 2017 Y. Liu, F.P. van der Meer, Lambertus J. Sluys
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Published Date

2017

Language

English

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Faculty

Civil Engineering & Geosciences

Department

Materials- Mechanics- Management & Design

Research Group

Applied Mechanics

Abstract

In this paper, the thick-level-set method is used to model stable and unstable (stick/slip) crack propagation in the dynamic double cantilever beam (DCB) test for unidirectional composite laminates. The thick-level-set method uses a predefined damage profile to describe the fracture process zone and allows
for accurate evaluation of the global energy release rate. A phenomenological model is introduced to calculate the crack speed as a function of the energy release rate. The potential capability of the proposed approach is demonstrated by simulating a series of dynamic DCB tests under variable test rates.

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