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Experimental study on the dielectric properties of polyacrylate dielectric elastomer

Submitted by Bo Li on

The dielectric constant of elastomeric dielectric material is an
essential physical parameter, whose value may affect the
electromechanical deformation of a dielectric elastomer actuator. Since
the dielectric constant is influenced by several external factors as
reported before, and no certain value has been confirmed to our
knowledge, in the present paper, on the basis of systematical comparison
of recent past literature, we conducted extensive works on the
measurement of dielectric properties of VHB films, involving five
influencing factors: prestretch (both equal and unequal biaxial),
electrical frequency, electrode material, stress relaxation time and
temperature. Experimental results directly show that the dielectric

geometric imperfection of a localized buckling behavior of unstiffened thin plate

Submitted by ouadie on

i'need to  initial geometric imperfection of a localized buckling behavior of unstiffened thin plate will be analyzed. Code Abaqus finite element analysis can be used for this purpose. Since a default is not always in isolation, the interaction between several localized defects will be considered. A parametric study will be conducted on the effect due to the interaction by using an experimental and numerical analysis of variance.

thank you.

Copying elements in ANSYS(Structural)

Submitted by mahinryan on
Choose a channel featured in the header of iMechanica

I'm Modelling a Beam Column Joint in ANSYS.

THe Concrete Element has been Modelled using SOLID 45 element & Steel Rebar using LINK 8 Element

The Volume has been meshed suitably

The rebar (LINK 8) is created in between the nodes, created as a result of meshing Volume.

I would like to know the procedure for copying the same elements (LINK8) at suitable intervals so as to get the desired arrangement of longitudinal reinforcement as in the real beam / column.

Crack propagation in ductile materials under monotonic loading

Submitted by m_motaleb on

Hello everyone;

 I am Msc student and work on simulation of repairing the cracked steel girders using CFRP in abaqus.

I induce a geometrical crack in steel beam model and exepct it propagate in failure strain path, after increasing the load

I  have a question about crack propagation of steel girder under monotonic loading, what criterion of fracture is suitable for this case?

Effect of geometric parameters on the stress distribution in Al 2024-T3 single-lap bolted joints

Submitted by Payam Soltani on

By: M. Keikhosravi, RH Oskouei, Payam Soltani, A. Atas, C. Soutis

Purpose - The main aim of this study is to investigate the effect of geometric variables on the stress and strain distributions as well as non-linear deformation behaviour of aluminium alloy 2024-T3 single-lap bolted joints loaded in tension.

Y.C. FUNG STUDENT PAPER COMPETITION ON BIOMECHANICS, BIOPHYSICS AND BIOMATERIOMICS

Submitted by Markus J. Buehler on

Call for Submissions

2nd Y.C. FUNG STUDENT PAPER COMPETITION ON BIOMECHANICS, BIOPHYSICS AND BIOMATERIOMICS



EMI 2012 Conference June 17-20, 2012, Notre Dame, IN
(http://emipmc12.nd.edu/index.html)



Sponsored by the Biomechanics Committee of the Engineering Mechanics Institute (EMI), American Society of Civil Engineers (ASCE)

Is paper ductile?

Submitted by W. Brocks on

In my previous blog, I complained about colleagues developing constitutive models without having any notion about the specific nature of deformation and damage and their micromechanical mechanisms. Unfortunately, this happens more often than one might (or would like to) believe, as a recent example testifies.

 P. Mäkelä and S. Östlund: Cohesive crack modelling of thin sheet material exhibiting anisotropy, plasticity and large-scale damage evolution. Engineering Fracture Mechanics, Vol. 79, 2012 pp. 50-60.

Looking at the title and the Abstract: