Influence of Deformation Mechanisms on the Mechanical Behavior of Metals and Alloys: Experiments, Constitutive Modeling, and Validation

2004 ◽  
Author(s):  
G. T. Gray
Keyword(s):  
Mechanical Behavior ◽  
Constitutive Modeling ◽  
Metals And Alloys ◽  
Deformation Mechanisms

Constitutive modeling for the mechanical behavior of rubber with filler particles

2021 ◽  
Author(s):  
Sankalp Gour ◽  
Deepu Kumar Singh ◽  
Deepak Kumar ◽  
Vinod Yadav
Keyword(s):  
Mechanical Properties ◽  
Carbon Black ◽  
Mechanical Behavior ◽  
Experimental Observation ◽  
Continuum Mechanics ◽  
Constitutive Modeling ◽  
Carbon Nanoparticles ◽  
Material Behavior ◽  
Experimental Results ◽  
Filler Particles

Abstract The present study deals with the constitutive modeling for the mechanical behavior of rubber with filler particles. An analytical model is developed to predict the mechanical properties of rubber with added filler particles based on experimental observation. To develop the same, a continuum mechanics-based hyperelasticity theory is utilized. The model is validated with the experimental results of the chloroprene and nitrile butadiene rubbers filled with different volume fractions of carbon black and carbon nanoparticles, respectively. The findings of the model agree well with the experimental results. In general, the developed model will be helpful to the materialist community working in characterizing the material behavior of tires and other rubber-like materials.

Constitutive Modeling of Biaxial Mechanical Response of Arteries Subjected to Gradual Elastin Degradation

2013 ◽  
Author(s):  
Shahrokh Zeinali-Davarani ◽  
Ming-Jay Chow ◽  
Raphaël Turcotte ◽  
Katherine Yanhang Zhang
Keyword(s):  
Tensile Test ◽  
Mechanical Behavior ◽  
Test Data ◽  
Constitutive Modeling ◽  
Mechanical Response ◽  
Collagen Fibers ◽  
Biaxial Tensile Test ◽  
Elastin Degradation ◽  
Adaptive Processes ◽  
Tensile Test Data

The passive mechanical response of arteries is believed to be mainly dominated by elastin and collagen fibers. Many arterial diseases are accompanied by significant changes in quantity and as well as the microstructure of these constituents due to the mechanical and biological adaptive processes. In this study we focus on the biaxial tensile test data of elastase-treated porcine aortic tissues [1]. We study the mechanical behavior of aortic tissues under gradual elastin degradation through constitutive modeling and associate the mechanical response with the microstructure of collagen observed in the microscopic images of fresh and digested tissues.

The Mechanical Behavior and Deformation Mechanisms of Nb-Al-V Alloys

1996 ◽  
Vol 460 ◽  
Author(s):  
D. K. Tappin ◽  
D. N. Horspool ◽  
L. S. Smith ◽  
M. Aindow
Keyword(s):  
Mechanical Behavior ◽  
Room Temperature ◽  
Compression Testing ◽  
Deformation Mechanisms ◽  
Dislocation Activity ◽  
Partial Dislocations ◽  
Shear Transformation ◽  
B2 Phase ◽  
A15 Phase ◽  
Phase Strains

ABSTRACTA series of Nb-Al-V alloys containing 20–40 at. % V and 10–25 at. % Al have been investigated. The phase distributions in the alloys indicate that Al promotes the formation of the A15 phase whilst V stabilises a B2 phase. Room temperature compression testing revealed that the B2 is inherently ductile such that for the alloys with less than 40% by volume of the A15 phase, strains of over 50% were obtained easily. The 2% offset yield stresses of these alloys did not vary significantly with composition, being 1.2±0.1GPa in each case. TEM studies were used to show that the deformation in the B2 phase occurs predominantly by the glide of screw-type super-partial dislocations with b=l/2<111> on {110} and {112}. In some alloys this dislocation activity was preceded by the formation of pseudo-twins, via a martensitic shear transformation.

scholarly journals Transitions in mechanical behavior and in deformation mechanisms enhance the strength and ductility of Mg-3Gd

2020 ◽  
Vol 183 ◽  
pp. 398-407 ◽  
Author(s):  
Xuan Luo ◽  
Zongqiang Feng ◽  
Tianbo Yu ◽  
Junqian Luo ◽  
Tianlin Huang ◽  
...  
Keyword(s):  
Mechanical Behavior ◽  
Deformation Mechanisms ◽  
Strength And Ductility
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