A constitutive model for the Mullins effect with changes in material symmetry

2012 ◽  
Vol 47 (8) ◽  
pp. 874-887 ◽  
Author(s):  
A. Dorfmann ◽  
F.Q. Pancheri
Keyword(s):  
Constitutive Model ◽  
Mullins Effect ◽  
Material Symmetry

Pseudo Elastic Analysis of Carbon Reinforced Natural/Styrene-Butadiene Blend Rubber (NSBR) with Ogden Constitutive Model

2018 ◽  
Vol 928 ◽  
pp. 20-25 ◽  
Author(s):  
Li Hong Huang ◽  
Xiao Xiang Yang ◽  
Jian Hong Gao
Keyword(s):  
Constitutive Model ◽  
Experimental Results ◽  
Mullins Effect ◽  
Elastic Analysis ◽  
Stress Softening ◽  
Styrene Butadiene

In this paper, experimental results that illustrate stress softening in carbon filled natural/styrene-butadiene blend rubber (NSBR) together with Mullins effect are introduced firstly. Then, based on these data, the Ogden constitutive model is derived. The theory of pseudo-elasticity is used in the model. It is found that theory of pseudo-elasticity and Ogden constitutive model is applicable in this composite.

A constitutive model for stress-strain response and mullins effect in filled elastomers

2012 ◽  
Vol 125 (6) ◽  
pp. 4368-4375 ◽  
Author(s):  
A. K. Mossi Idrissa ◽  
S. Ahzi ◽  
S. Patlazhan ◽  
Y. Rémond ◽  
D. Ruch
Keyword(s):  
Constitutive Model ◽  
Mullins Effect ◽  
Strain Response ◽  
Stress Strain ◽  
Filled Elastomers

Material Properties of the Axillary Pouch of the Glenohumeral Capsule: Is Isotropic Material Symmetry Appropriate?

2009 ◽  
Vol 131 (3) ◽  
Author(s):  
Eric J. Rainis ◽  
Steve A. Maas ◽  
Heath B. Henninger ◽  
Patrick J. McMahon ◽  
Jeffrey A. Weiss ◽  
...  
Keyword(s):  
Constitutive Model ◽  
Simple Shear ◽  
Material Properties ◽  
Isotropic Material ◽  
Tissue Sample ◽  
Shear Loading ◽  
Material Symmetry ◽  
Shear Deformations ◽  
Experimental Conditions ◽  
Glenohumeral Capsule

Inconclusive findings regarding the collagen fiber architecture and the material properties of the glenohumeral capsule make it unclear whether the material symmetry of the glenohumeral capsule is isotropic or anisotropic. The overall objective of this work was to use a combined experimental and computational protocol to characterize the mechanical properties of the axillary pouch of the glenohumeral capsule and to determine the appropriate material symmetry. Two perpendicular tensile and finite simple shear deformations were applied to a series of tissue samples from the axillary pouch of the glenohumeral capsule. An inverse finite element optimization routine was then used to determine the material coefficients for an isotropic hyperelastic constitutive model by simulating the experimental conditions. There were no significant differences between the material coefficients obtained from the two perpendicular tensile deformations or finite simple shear deformations. Furthermore, stress-stretch relationships predicted by utilizing the material coefficients from one direction were able to predict the responses of the same tissue sample in the perpendicular direction. These similarities between the longitudinal and transverse material behaviors of the tissue imply that the capsule may be considered an isotropic material. However, differences did exist between the material coefficients obtained from the tensile and shear loading conditions. Therefore, a more advanced constitutive model is needed to predict both the tensile and shear responses of the material.

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