ageing viscoelastic
Hello everone
I am recently interested in viscoelastic composite materials with ageing effect. I will be very pleased if someone can advise me how to find a constitutive law with ageing effect.
sincerely
research
IMECE 2015: Student Travel Awards and Best Paper Contest
Dear IMECE Attendees:
The Applied Mechanics Executive Committee (AMD-EC) is pleased to announce the 2015 IMECE student travel award and best paper competition.
On the modeling of asymmetric yield functions
In the context of metal plasticity, the yield function of a metal polycrystal is its most complex macro-characteristic. Letting aside the questions of kinematic or distortional hardening, the basic problem is geometric in nature: to design a family of convex surfaces capable of reproducing a wide range of experimental, or theoretically predicted data. While many satisfactory solutions have been proposed for the modeling of symmetric (with respect to the origin of the stress space) yield functions, the more general case of asymmetric functions has not witnessed comparable progress.
Is energy conservation satisfied in the current deformation application schemes in molecular dynamic simulations?
In our recent paper, we examined the energy conservation for the current schemes of applying active deformation in molecular dynamics (MD) simulations. Specifically, two methods are examined. One is scaling the dimension of the simulation box and the atom positions via an affine transformation, suitable for the periodic system. The other is moving the rigid walls that interact with the atoms in the system, suitable for the non-periodic system.
How to extend crack in Mixed mode crack growth in Ansys ?
Hi, I am doing project on mixed mode crack growth of semi elliptical crack in gas turbine components under cyclic loading. Ansys has capability for finding J,K using CINT command. But, In mixed mode crack growth, i dont know how to deal with nodes and how to create random crack with new node coordinates obtained from previous steps. If you have any ansys code related to creating crack and finding fracture parameters like K, J (mode 1 or mixed mode), Can you please give me the code.
Thanks
(I cant use any other software, only Ansys)
Can any one provide any apdl code to perform automatic fatigue crack growth ??
Hi, I am using Ansys Apdl for 3d fatigue crack growth. I need any one code to understand how it can be automized (recreating crack with node shift and remeshing).
Thank you
Gravity induced crease-to-wrinkle transition in soft materials
Creasing and wrinkling instability are two distinct surface instability modes characterized by localized singular folds and continuous smooth undulations, respectively. In this article, we show that the surface of a soft elastomer may develop wrinkles or creases under compression and the action of gravitational force, depending on the magnitude of gravitational force.
Ph.D. Positions in Mechanics of Soft Materials at Michigan State University
Our Group of High Performance Materials in Enviormental & Civil Engineering Department at Michigan State University has an openings for PhD positions to work on Multiscale Modeling of Soft Materials starting sSummer or Fall 2015.
Post buckling of stiffened composite panel
Dear all,
I am working on postbuckling of stiffened composite panels using ANSYS. I have done few experiments and trying to simulate in ANSYS. I have performed nonlinear analysis using arc length method and the load-axial displacement curve obtained is too stiff (having 60% higher slope) compared to the experimental curve. I think BCs, material properties and loading is fine in the model. Can anyone have any suggestions to improve my results?
load transfer in grephene laminates
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Hi everyone,
First little bit of background over my model.