A rate-independent elastoplastic constitutive model for biological fiber-reinforced composites at finite strains: continuum basis, algorithmic formulation and finite element implementation

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Fältnamn	Indikatorer	Metadata
000		02585naa a2200361 4500
001		oai:DiVA.org:kth-22057
003		SwePub
008		100810s2002 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-220572 URI
024	7	a https://doi.org/10.1007/s00466-002-0347-62 DOI
040		a (SwePub)kth
041		a engb eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a art2 swepub-publicationtype
100	1	a Gasser, T. Christian4 aut
245	1 0	a A rate-independent elastoplastic constitutive model for biological fiber-reinforced composites at finite strains :b continuum basis, algorithmic formulation and finite element implementation
264	1	b Springer Science and Business Media LLC,c 2002
338		a print2 rdacarrier
500		a QC 20100525
520		a This paper presents a rate-independent elastoplastic constitutive model for (nearly) incompressible biological fiber-reinforced composite materials. The constitutive framework, based on multisurface plasticity, is suitable for describing the mechanical behavior of biological fiber-reinforced composites in finite elastic and plastic strain domains. A key point of the constitutive model is the use of slip systems, which determine the strongly anisotropic elastic and plastic behavior of biological fiber-reinforced composites. The multiplicative decomposition of the deformation gradient into elastic and plastic parts allows the introduction of an anisotropic Helmholtz free-energy function for determining the anisotropic response. We use the unconditionally stable backward-Euler method to integrate the flow rule and employ the commonly used elastic predictor/plastic corrector concept to update the plastic variables. This choice is expressed as an Eulerian vector update the Newton's type, which leads to a numerically stable and efficient material model. By means of a representative numerical simulations the performance of the proposed constitutive framework is investigated in detail.
653		a biomechanics
653		a soft tissue
653		a elastoplasticity
653		a anisotropy
653		a finite element method
653		a crystal plasticity
653		a computation
653		a framework
700	1	a Holzapfel, Gerhard A.4 aut
773	0	t Computational Mechanicsd : Springer Science and Business Media LLCg 29:05-apr, s. 340-360q 29:05-apr<340-360x 0178-7675x 1432-0924
856	4 8	u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-22057
856	4 8	u https://doi.org/10.1007/s00466-002-0347-6

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