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Investigation of the laminate free‐edge effect by means of the scaled boundary finite element method
Author(s) -
Dölling Sebastian,
Hell Sascha,
Becker Wilfried
Publication year - 2018
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201800129
Subject(s) - finite element method , enhanced data rates for gsm evolution , boundary knot method , extended finite element method , boundary (topology) , mixed finite element method , stress (linguistics) , structural engineering , smoothed finite element method , fracture (geology) , reliability (semiconductor) , boundary value problem , materials science , mathematical analysis , mechanics , mathematics , boundary element method , computer science , engineering , physics , composite material , power (physics) , telecommunications , linguistics , philosophy , quantum mechanics
In the present study, a coupled stress and energy criterion within the framework of finite fracture mechanics is used to predict interlaminar crack onset in composite laminates induced by the free‐edge effect. In order to obtain the required quantities for the evaluation of the coupled criterion the scaled boundary finite element is implemented. This semi‐analytical approach reduces the numerical effort significantly in comparison to standard finite element method. To assess the reliability of the obtained results a comparison to a finite element model is presented.