Computational aspects of a pseudo-elastic constitutive model for muscle properties in a soft-bodied arthropod

2009 ◽  
Vol 44 (1) ◽  
pp. 42-50 ◽  
Author(s):  
K. Bose ◽  
A. Dorfmann
Keyword(s):  
Constitutive Model ◽  
Muscle Properties ◽  
Computational Aspects

A Transversely Isotropic Hyperelastic Constitutive Model of the PDL. Analytical and Computational Aspects

2003 ◽  
Vol 6 (5-6) ◽  
pp. 337-345 ◽  
Author(s):  
Georges Limbert ◽  
John Middleton ◽  
Janis Laizans ◽  
Modris Dobelis ◽  
Ivar Knets
Keyword(s):  
Constitutive Model ◽  
Transversely Isotropic ◽  
Computational Aspects

scholarly journals Muscle performance in a soft-bodied terrestrial crawler: constitutive modelling of strain-rate dependency

2007 ◽  
Vol 5 (20) ◽  
pp. 349-362 ◽  
Author(s):  
A. Luis Dorfmann ◽  
William A Woods ◽  
Barry A Trimmer
Keyword(s):  
Experimental Data ◽  
Mechanical Properties ◽  
Constitutive Model ◽  
Constitutive Modelling ◽  
Muscle Performance ◽  
Multiple Time ◽  
Rate Dependency ◽  
Muscle Properties ◽  
Engineering Strain ◽  
Lateral Muscle

Experimental data on the passive mechanical properties of the ventral interior lateral muscle of the tobacco hornworm caterpillar, Manduca sexta , are reported. The stress–deformation response of the Manduca muscle is shown to be nonlinear pseudo-elastic, capable of large deformations and subject to stress softening during initial loading cycles. The muscle passive mechanical properties also depend on multiple time-dependent processes. In particular, we show new experimental data from cyclic loading tests of an unstimulated muscle with constant maximum stretch and different, constant engineering strain rates. Then, on the basis of these data a constitutive model is derived to reproduce the main characteristics of this behaviour. In formulating the constitutive model, we consider the muscle as a complex macromolecular structure with fibrous components at numerous size scales. The model uses a phenomenological approach to account for different mechanisms by which passive force changes during applied deformation and how the muscle properties recover after unloading.

Computational Aspects in the Elasto/Viscoplastic Material Behavior of Solids

2012 ◽  
Vol 567 ◽  
pp. 192-199 ◽  
Author(s):  
Fabio de Angelis
Keyword(s):  
Constitutive Model ◽  
Material Behavior ◽  
Inelastic Behavior ◽  
Viscoplastic Material ◽  
Solid Materials ◽  
Numerical Examples ◽  
Computational Aspects ◽  
Computational Procedures ◽  
Consistent Tangent Operator ◽  
Algorithmic Procedure

In the present paper a computational algorithmic procedure is presented for modeling the elasto/viscoplastic behavior of solid materials. The effects of different loading programs on the inelastic behavior of rate-sensitive materials are analyzed with specific numerical examples. An appropriate solution scheme and a consistent tangent operator are applied which are capable to be adopted for general computational procedures. Numerical computations and results are reported which illustrate the rate-dependence of the constitutive model in use.

IMPLICATIONS OF A CONSTITUTIVE MODEL FOR STRAIN LOCALIZATION

1988 ◽  
Vol 49 (C3) ◽  
pp. C3-489-C3-496
Author(s):  
B. D. COLEMAN ◽  
M. L. HODGDON
Keyword(s):  
Constitutive Model ◽  
Strain Localization
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