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finite strain

Mike Ciavarella's picture

Finite strains explain the non-monotonic change of contact area in soft rubber contacts loaded in torsion?

Sat, 2024-11-23 05:36 - Mike Ciavarella
contact area
rubber contact
tresca friction
adhesion
finite strain

In unidirectional sliding of rubber contacts on smooth hard surface it has been found that contact shrinks largely in longitudinal directions, and generally much less in the transverse direction, and two explanations have been suggested to explain this: one is the effect of mixed mode fracture mechanics in the presence of adhesion (with mode II reducing adhesion and mode III less clear), and another uniquely based on finite strain effects even for a simple material model as neo-Hookean hyperelastic material.

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Fan Xu's picture

Curvature tunes wrinkling in shells

Sat, 2021-05-22 12:39 - Fan Xu
research
hyper elasticity
finite strain
differential geometry

Transverse wrinkles usually emerge in a uniaxially stretched elastic film and can be suppressed upon further tension, which is an instability-restabilization behavior due to the nonlinear competition between stretching energy and bending energy. Here, we show that curvature can effectively and precisely tune the wrinkling localization and amplitude.

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Emilio Martínez Pañeda's picture

On fracture in finite strain gradient plasticity

Wed, 2015-10-21 04:14 - Emilio Martínez...
research
strain gradient plasticity
fracture mechanics
finite strain
finite elements

I hope some of you - particularly those working on strain gradient plasticity or damage and fracture modeling - find this work interesting. 

On fracture in finite strain gradient plasticity

http://www.sciencedirect.com/science/article/pii/S074964191500162X

(A pre-print version is available at www.empaneda.com)

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Abaqus UMAT implementation

Sun, 2013-02-17 23:20 - Mandar Kulkarni
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Computational Mechanics Forum
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research
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UMAT
finite strain
UEXPAN

Hi,

I have a thermo-mechanical constitutive model for polymer and want to implement it in ABAQUS through two user subroutines namely UMAT and UEXPAN but I dont know how to use them together. Also, in UEXPAN, I need to pass in the strain tensor as information but I dont see 'STRAN' variable in the list of variables passed in to UEXPAN in Abaqus documentation. Does anyone know answer to this?

Thanks,

Mandar

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Large Epsilon 3D

Tue, 2012-07-10 08:31 - nitelm
industry
crack
large strain
finite strain
strain concentrator
large strains redistribution

Large EPSILON 3D

CAE system for strength analysis at large strains redistribution.

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mokarram76's picture

my recent publications in curing modeling

Wed, 2011-09-07 11:33 - mokarram76
research
viscoelasticity
curing
finite strain
shrinkage

Hi

I am working on the modeling of curing process of polymer

we may like to take a look on my recent publications:

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