Small-strain Model for Dielectric Elastomers
Reliability of Dielectric Elastomers
... the dielectric breakdown strength of the elastomer as well as electromechanical instabilities which strongly influence device ...inherent strain-hardening of the elastomer, thinning continues and leads to ...
162
Modeling shape selection of buckled dielectric elastomers
... For small values of α , Newton’s method may take very large steps that decrease the residual of deflation operator, but not the residual of the original ...
12
Computational study of electromechanical instabilities in dielectric elastomers
... Dielectric elastomers (DEs) have attracted significant attention in recent years and have been found to provide excellent overall performance in actuation-based ap- ...element model coupled with a ...
52
Large conversion of energy in dielectric elastomers by electromechanical phase transition
... steep strain-stiffening of the elastomer, so that the thin regions survive the pull-in instabil- ity without electrical breakdown, and coexist with the thick ...
9
Frequency dependent dielectric and mechanical behaviour of elastomers for actuator applications
... the dielectric constant 共in the frequency range 10 Hz–1 GHz兲 rather than empirical fits to the actuator re- ...composite elastomers was primarily due to an increase in dielectric constant, although ...
7
Non-Linear Homogenization of Magnetorheological Elastomers at Finite Strain
... Magnetorheological Elastomers at Finite Strain Abstract Magnetorheological elastomers (MREs) are composite materials consisting of magnetizable particles embedded in an elastomeric matrix ...
265
Constitutive modeling of strain-induced softening in swollen elastomers
... phenomenological model describing Mullins effect in swollen rubbers under cyclic loading is ...proposed model adopts the concept of evolution of soft domain microstructure with deformation originally ...
10
Particulate Reinforcement of Elastomers at Small Strains.
... the model microcomposites introduced in Chapter 5 and demonstrates that the small strain viscoelasticity of these compounds can be understood in very simple terms by considering the deformation ...
355
Stress-strain laws for carbon black and silicon filled elastomers
... stress- strain relationships in viscoelastic ...integral model is the Boltzmann integral model, which captures the viscosity of the material and the history dependence of the stress on the ...
11
Maximizing strain in miniaturized dielectric elastomer actuators
... the dielectric breakdown ...we model using the Gent hyper-elastic ...2 model parameters were obtained by fitting the model on experimental traction test ...Gent model on the ...
9
Physicochemical Properties and Stress-Strain Compression Behaviors of a Waste based Magnetorheological Elastomers
... in small amplitude and wide ranges of operating ...in small strain deformation in the pre-yield region of the linear vis- coelastic ...The strain deformation in this study was limited to 20% ...
16
A microscale-based model for small-strain stiffness in unsaturated granular geomaterials
... very small strains G0 is commonly assessed via laboratory and field methods and used to design a wide range of ...microscale-based model was formulated to interpret the experimental results, and to ...
73
A continuum model for progressive damage in tough multinetwork elastomers
... constitutive model capable of quantitatively predicting the mechanical behavior of MNEs, especially how the network pre-stretch induced by swelling affects the strain stiffening and damage in the ...network ...
65
Model for chaotic dielectric microresonators
... Two-dimensional dielectric microresonators attract considerable attention because of their prospective appli- cation as microlasers and single-photon cavities, as well as sensors in chemical and biological systems ...
10
Swelling of elastomers due to simulataneous diffusion of biodiesel and multi-axial large strain / Omid Kahbasi
... of elastomers had been extensively studied by Flory ...infinitesimal small twisting angles, i.e. only small strain problems were ...large strain simple torsion or general multiaxial ...
85
A novel phenomenological model for dynamic behavior of magnetorheological elastomers in tensioncompression
... MR elastomers (MREs) offers both the most compact design and superior stiffness in many vertical load-bearing applications such as MRE bearing isolators in bridges and buildings, suspension systems and engine ...
Development Of Material Model Subroutines For Linear And Nonlinear Response Of Elastomers
... Figure 3-16 Variation of maximum von Mises stress with number of elements. 3.5 Summary In this chapter a UMAT has been developed for simulating the viscoelastic response of elastomeric materials. The formulation of the ...
83
Effect of large strain on dielectric and ferroelectric properties of Ba0.5Sr0.5TiO3 thin films
... tions. On the other hand, the in-plane lattice parameter a was derived from a combination of the 共011兲 asymmetric and 共001兲 symmetric reflections. Figure 2 shows the lattice pa- rameters a and c as well as the c /a ratio ...
5
Mechanical strain engineering of dielectric tunability in polycrystalline SrTiO3 thin films
... Analysing the positions of (110), (211) and (220) reflections in the profiles obtained conventionally in out-of-plane geometry and by LIBAD in in-plane geometry, a and c lattice parameters of ST films deposited on the ...
19
Reshaping Elastomers with Light: First Principles Model of Diffusion-Induced Deformation
... J m = −ρDφ∇µ (6.2.3) with D being the diffusivity of macromer. For a given macromer, prior research shows D is insensitive to φ over the range from φ = 0.1 to 0.3 (Appendix B.4). Therefore, D is treated as a uniform ...
204