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Stress Relaxation

Submitted by Amit Pandey on
research
Plasticity
metals
stress relaxation

2012-07-10

I would like to seek comments on : Room temperature stress relaxation and governing mechanisms that contribute to the plasticity that occurs during this process. As, most of the available work on relaxation is done at elevated temperatures.



Please check more on this thread by hari@



node/12687



 I have also attach papers by Prof Hart and Prof Krempl that did throw some light on this particular subject.

Buildings subsidence due to clay ‘shrink-swell': UK research highlights link to weather and consequences for insurers

Submitted by Laure Ballu on
research
British Geological Survey (BGS)
shrink-swell
structural safety

Will home owners get that sinking feeling this summer?



Are we in for a summer of cracked buildings? It all depends on the weather. Research from the British Geological Survey (BGS) has highlighted the importance of rainfall and temperature on the incidence of clay shrink-swell, a precursor to subsidence, in the UK. For many, the cool, wet conditions we have experienced so far this summer may be just what is needed to keep their house in order.

Modelling continuum based constitutive for adhesive layers with finite thickness

Submitted by mahzanjohar on
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I am new in ABAQUS. 

Can anyone help me on modelling continuum based constitutive for adhesive layers with finite thickness in ABAQUS?

 

 Is there is any tutorial in abaqus documentation about modelling the thick adhesive layer? I'm try to model thick adhesive layer in a single lap joint.

attached is the link of my model. can anyone teach me how to correct this model...

PhD and Postdoc Positions-Department of Mechanical Engineering at the University of Texas at Dallas

Submitted by Majid Minary on
research
PHD position
Postdoc Position

There are openings for PhD students and Postdocs within the "UT-Dallas Nanobiomechanics Laboratory".



The research topics cover: Nanobiomechanics, scanning Probe microscopy, bioinspired and biomimetic nanomaterials, nanomechanics of living cells and biological systems, nanomanufacturing and microfabrication. The topics are "Experimental" in nature, and prior experimental skills at the nanoscale are highly desirable.



For more details please visit: http://me.utdallas.edu/people/Minary.html

FE modeling of dispersion in cylinders

Submitted by HSD83 on
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FEM
wave propagation in solids
dispersion
ls-dyna

As you may know wave propagation in circular cylinders is dispersive. As shown by Pochhammer, there

could be several different modes propagating in an infinite cylinder with

different wave speeds. I'm modeling wave propagation in a finite 3D circular cylinder in

Can I use the Johnson-Cook method to capture and predict fiber failure of a composite material?

Submitted by parthchoksi on
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Fracture Mechanics Forum
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Johnson Cook Model
fiber composites

Is it possible to use a Johnson-Cook method to predict the fiber damage in a composite lamina? I am presently using ABAQUS for it. I want to capture fiber failure.

Spectral Element Method Mesher

Submitted by nicoguaro on
research
Finite Element Method
Spectral Element Method

Hi,

Is there a free/open-source mesher for the Spectral Element Method?

I know some researchers use conventional mesher with order 3 elements and then include more nodes in the meshes (but without improve the geometric interpolation).

Thanks in advance,

Nicolás Guarín Z.

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