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Polyconvex hyperelastic modeling of rubberlike materials
In this work a number of selected, isotropic, invariant-based hyperelastic models are analyzed. The considered constitutive relations of...
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Damage as a Material Phase Transition
We propose paradigmatic examples to show how material damage phenomena can be efficiently described as a solid-solid phase transition. Starting from...
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Biaxial Extension of Cruciform Specimens: Embedding Equilibrium Into Design and Constitutive Characterization
BackgroundMain desired features of biaxial tests are: uniformity of stresses and strains; high strain levels in gauge areas; reliable constitutive...
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Belt Layer Effects on Non-pneumatic Tire Performance by Finite Element Analysis
One of the most advantageous tires recently receives attention for development is the non-pneumatic tire (NPT). It is developed for dangerous...
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Isotropic Elasticity
Balance laws are equally applicable to all materials. No specification of material has been done yet. Thus, physics requires the development of...
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Model-based modular hydrogel design
Hydrogels — water-insoluble, three-dimensional networks of polymer chains — are used as biomaterials in various biomedical and clinical applications....
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Effects on Spoke Structure of Non-Pneumatic Tires by Finite Element Analysis
Cause of the non-pneumatic tires (NPTs) which are recent manufacturing have a higher weight that increases energy consumption for driving vehicles...
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Large deflection of a bilayer soft strip due to incompatibility of isotropic volumic expansion
Since the traditional bending theory of bilayers was mainly for linear elastic materials with the assumption of infinitesimal deformation, here we...
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The potential of rubber materials as an inhibitor to suppress jet formation of the shaped charge warhead
In this paper, as a measure to protect shaped charge, NBR whch is a hyperelastic material, was considered as a target material into which a shaped...
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Constitutive Modeling of the Dynamic Behavior of Cork Material
In this work, compression tests have been carried out at different strain rate, from 10−3 to approximately 103 s−1, on agglomerated cork material....
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Invariance Aspects of F = FeFi Representations in Coupled-Field Problems
In multi-field problems, the free energy contributions of different fields are coupled. For the kinematic of deformation, explicit assumptions on the...
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Prediction of Nonlinear Stress-strain Behaviors with Artificial Neural Networks and Its Application for Automotive Rubber Parts
This study presents a new method to predict the stress-strain curves of rubber materials using artificial neural networks in order to reduce the...
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Microstructure and mechanical property of additively manufactured NiTi alloys: A comparison between selective laser melting and directed energy deposition
NiTi shape memory alloy (SMA) with nominal composition of Ni 50.8 at% and Ti 49.2 at% was additively manufactured (AM) by selective laser melting...
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Comparison behavior of two compressible isotropic hyperelastic models in framework of a coupled axial stretch to simple shear test
In this paper, we have analyzed behavior of the generalized compressible isotropic Blatz–Ko model and the so-called basic-Hencky model in the...
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Numerical assessment of low-speed impacts on ballistic gelatin on a spring stage as a human bio-simulant
Bio-simulants and finite element (FE) models have been used to investigate internal injuries caused by external impacts. As the collaboration between...
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Growth-induced instabilities for transversely isotropic hyperelastic materials
This work focuses on planar growth-induced instabilities in three-dimensional bilayer structures, i.e., thick stiff film on a compliant substrate or...
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Combination of Shape-Memory Polymers and Metal Alloys
Stimuli-responsive metal alloys and polymers considerably varied their properties like mechanical, optical, electrical properties, and shape upon...
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Optical and Nanomechanical Characteristics of Multilayer Structure Derived from Color-changing Beetle Popillia Indgigonacea Motsch
The architecture of multilayer acting in colorful appearance has been widely reported. In spite of this, it is interesting that dense multilayer in...
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Viscoelasticity
Rubberlike materials and soft biological tissues can exhibit a time-dependent response. For example, stresses can decrease under the constant...