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software of interest to mechanicians

interaction for a beam element embedded in a 3D solid block

Submitted by Ehsanizadi_civil on
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Hi everyone,

 I am trying to model a beam element (which is supposed to work as a pile) embedded into a 3D block solid of soil.

the beam element (pile) is supposed to have 2 interfacial interactions; 1) tangential and normal contact at the end of beam element , 2) tangential and normal contact on the beam circumference. 

could anyone explain how to define this type of interaction?

I really appreciate that.

-Ehsan 

XFEM and Cohesive Behavior combined in Abaqus

Submitted by vallejom@unm.edu on
software

Hello,

I would like to combine Extended Finite Element Method (XFEM) with cohesive behavior in Abaqus to model bulk damage as well as interlaminar damage in a material.

Section 10.6.1 of the Abaqus 6.9 Analysis Users Manual says that XFEM "can be simultaneously used with the surface-based cohesive behavior approach or the Virtual Crack Closure Technique, which are best suited for modeling interfacial delamination."

Does anyone know if XFEM can be combined with element-based cohesive behavior?

 

Thank you,

Meghan

Modeling sandwich composite in ANSYS

Submitted by jigaraero on
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Modeling sandwich composite in ANSYS

Hi, i need help modeling sandwich structure in ANSYS 12.1, i have found some materials online on how to do it? I have tried the basic steps. got some results, but now how do i validate that.   I have experimental data for three point bending. But i want to make sure that what i am doing in ANSYS APDL is darn right. 

inputs are,

3 layers 45/0/45

thickness 0.1/0.365748/0.1   (inch)

material i am using right now are carbon fiber and foam DH100

properties of each layer have been assumed to be isotropic

 carbon fiber weave

IOSO Optimization for Turbomachinery new Video Tutorials

Submitted by IOSOnier on
software
Optimization
IOSO
turbomachinery
Concepts NREC
NUMECA

Hello,

We would like to offer you step by step Video Tutorials of IOSO Optimization coupled with Concepts NREC and NUMECA software:

1) http://vimeo.com/16668245 by this we show how easily you can use direct integration capabilities between IOSO and Concepts NREC software to solve optimization tasks in turbomachinery

2) http://vimeo.com/16805244 here we consider IOSO – NUMECA coupled solution on the example of an optimization case study for turbomachinery

Help with Abaqus Scripting

Submitted by vveeram on
software

Hi,



I am new to abaqus scripting. I need some help with accessing the odb for history output.



I have a list of odbs and i need to take the displacement and contact stresses information at the end of the step.



The syntax i tried was



import odbAccess





fileName = 'static_open_c1.odb'

stepName = 'Load'

historyRegionName = 'Node HS-1.701'

historyOutputName = 'U2'



session.odbs[fileName].steps[stepName].historyRegions[historyRegionName]



ADINA SVEGM

Submitted by robby on
software

I'm trying to investigate the effect of multiple support excitation (spatially varying ground motion) on seismic response of an arch dam using ADINA, so i need to apply different acceleration (and velocity and displacement) time histories on every node on structure-foundation interface.

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