does anyone know any current theories on the stress wave propagation in a complex media(such as concrete or rock).(1D sphere wave or complex)
all i see is the simulation with a complex constitutive model. but i think it`s not perfect.
hope for your help
Although this is a class in solid mechanics, I chose a project which focuses on fluid dynamics. I did this because I think this project will be very educational with respect to the Finite Element Analysis and mechanics in general.
For my semester project, I will investigate equilibrium geometries of ripples in an elastic sheet. In order to do so, I will need to learn how to study out of plane bending of a thin membrane with ABAQUS. The project can be divided into the following stages:
1. Set up the membrane geometry model in ABAQUS
2. Apply relevant boundary conditions and tractions
3. Set up the job
4. Run the job, and post-process
Hi,
if I have a material model defined in cauchy stress then I use test data with true stress (calculated from nominal stress: sigma_true=sigma_nom(1+epsilon_nom).
If I wanted to use nominal stress data, which stress tensor would I have to use to define my material model? First or second Piola Kirchhoff?
Andreas
Mar 05, 2009
This position has been filled. Thanks for reading and applying.
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My doubt is in transient dynamic analysis.
take a simple model of 40*2*1 m dimensions.Applying brick45 material. with e=2.069e11N/m2
poissons ratio= .3
density= 7830kg/m3
first performing modal analysis with just arresting displacements in 1 side in subspace method and getting 10 sets of frequencies..
then performing transient dynamic analysis in mode superposition method with dynamic loads.and solve it
contact me at
shrikant.zarekar [at] iitb.ac.in /
shrikantzarekar [at] me.iitb.ac.in
