Topic
Elastic modulus
About: Elastic modulus is a research topic. Over the lifetime, 33153 publications have been published within this topic receiving 810247 citations.
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TL;DR: In this article, the authors presented the first reported data on the embedding of highly dielectric ceramic inclusions in a rubbery host medium as a means to increase the electromechanical material response for dielectrics elastomer actuation.
Abstract: This paper presents the first reported data on the embedding of highly dielectric ceramic inclusions in a rubbery host medium as a means to increase the electromechanical material response for dielectric elastomer actuation. The studied polymer/ceramic composite, consisting of a silicone matrix in which titanium dioxide powder was dispersed, exhibited, in comparison with pure silicone, a decreased elastic modulus, as well as an increased dielectric constant. The measured low frequency permittivity resulted in accordance with several classical dielectric mixing rules. The use of this material as elastomeric dielectric for planar actuators enabled a reduction of the driving electric fields, so that a transverse strain of 11% at 10 V//spl mu/m and a transverse stress of 16.5 kPa at 9 V//spl mu/m were obtained. These levels of strain and stress were respectively more than eight and four times higher than the corresponding values generated with the pure polymer matrix for analogous electrical stimuli.
273 citations
TL;DR: In this article, the elastic moduli of graphene sheets and carbon nanotubes were predicted using a linkage between lattice molecular structure and equivalent discrete frame structure. But the results for a graphene sheet show an isotropic behavior, in contrast to limited molecular dynamic simulations.
272 citations
TL;DR: An analytical relationship between the reduced modulus E-r and hardness H for solid materials is established based on the conventional depth-sensing indentation method of Oliver and Pharr as mentioned in this paper.
272 citations
TL;DR: In this article, the homogenization theory for disordered media is used in order to estimate the evolution of the effective elastic moduli of the hydrating paste of Portland cements.
271 citations
TL;DR: In this article, the effect of lamina configuration and their relative posi tions with respect to each other on the in-plane elastic constants of the woven fabric laminates is studied.
Abstract: Two-dimensional models are presented for the elastic analysis of the plain weave fabric laminates. A methodology to generate the laminate configuration from the lamina configuration is given. The effect of lamina configuration and their relative posi tions with respect to each other on the in-plane elastic constants of the woven fabric lami nates is studied. A laminate configuration with optimum shifts gives higher elastic proper ties compared to the other configurations. A comparison between in-plane elastic moduli of the unidirectionally laminated symmetric cross-ply laminates and plain weave fabric laminates is made. The in-plane elastic moduli of plain weave fabric laminates predicted by the models are found to be in good agreement with the experimental results.
271 citations