Constitutive modeling of anisotropic plasticity with application to fiber-reinforced composites
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In: International journal of solids and structures, Vol. 180-181.2019, No. 15 December, 15.12.2019, p. 84-96.
Research output: Contribution to journal › Article › Research › peer-review
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TY - JOUR
T1 - Constitutive modeling of anisotropic plasticity with application to fiber-reinforced composites
AU - Nagaraja, Swaroop G.
AU - Pletz, Martin
AU - Schuecker, C.
PY - 2019/12/15
Y1 - 2019/12/15
N2 - This article proposes two constitutive models to describe the nonlinear, elastic-plastic behavior of unidirectional fiber-reinforced composites at the meso-level. Key ingredients are the formulation of two anisotropic yield functions with the aid of representation theorems (invariant formulation), and the set-up of governing equations for plastic variables with respect to associative and non-associative flow response. The governing equations are solved using an elastic predictor-plastic corrector algorithm which imposes the constraint posed by the yield condition. Both the models are evaluated qualitatively and quantitatively by comparison to micromechanics simulations as well as to experimental data.
AB - This article proposes two constitutive models to describe the nonlinear, elastic-plastic behavior of unidirectional fiber-reinforced composites at the meso-level. Key ingredients are the formulation of two anisotropic yield functions with the aid of representation theorems (invariant formulation), and the set-up of governing equations for plastic variables with respect to associative and non-associative flow response. The governing equations are solved using an elastic predictor-plastic corrector algorithm which imposes the constraint posed by the yield condition. Both the models are evaluated qualitatively and quantitatively by comparison to micromechanics simulations as well as to experimental data.
KW - Anisotropy
KW - Fiber-reinforced composites
KW - Plasticity theory
UR - http://www.scopus.com/inward/record.url?scp=85069637657&partnerID=8YFLogxK
U2 - 10.1016/j.ijsolstr.2019.07.002
DO - 10.1016/j.ijsolstr.2019.07.002
M3 - Article
AN - SCOPUS:85069637657
VL - 180-181.2019
SP - 84
EP - 96
JO - International journal of solids and structures
JF - International journal of solids and structures
SN - 0020-7683
IS - 15 December
ER -
