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An Efficient Multiscale Method for Modeling Progressive Damage in Composite Materials

  • An efficient multiscale approach is established in order to compute the macroscopic response of nonlinear composites. The micro problem is rewritten in an integral form of the Lippmann-Schwinger type and solved efficiently by Fast Fourier Transforms. Using realistic microstructure models complex nonlinear effects are reproduced and validated with measured data of fiber reinforced plastics. The micro problem is integrated in a Finite Element framework which is used to solve the macroscale. The scale coupling technique and a consistent numerical algorithm is established. The method provides an efficient way to determine the macroscopic response considering arbitrary microstructures, constitutive behaviors and loading conditions.

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Author:Johannes Spahn
URN (permanent link):urn:nbn:de:hbz:386-kluedo-39800
Advisor:Ralf Müller
Document Type:Doctoral Thesis
Language of publication:English
Publication Date:2015/01/30
Date of first Publication:2015/01/30
Publishing Institute:Technische Universität Kaiserslautern
Granting Institute:Technische Universität Kaiserslautern
Acceptance Date of the Thesis:2014/12/09
Date of the Publication (Server):2015/02/02
Tag:composite materials; computational homogenization; continuum damage mechanics; multiscale analysis
Number of page:X, 120
Faculties / Organisational entities:Fachbereich Maschinenbau und Verfahrenstechnik
DDC-Cassification:6 Technik, Medizin, angewandte Wissenschaften / 620 Ingenieurwissenschaften und Maschinenbau
Licence (German):Standard gemäß KLUEDO-Leitlinien vom 28.10.2014