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Finite strain finite element formulation

Submitted by Sugeng Waluyo on

Hi ,

 

I am working with finite strain finite element formulation. Normaly, the weak form is derived from equilibrium at a reference configuration or differential of 1st piola-kirchoff stress tensor. In case, we have 10 steps of load increment, is it necessary to update nodal position or nodal coordinate for each step??. I am using newton-raphson method.  

 

best regards,

sugeng

 

Course Notes of Finite Element Analysis of Solids and Fluids by Prof. K .J. Bathe

Submitted by Jung W. Hong on
education
Finite Element Method
solid
Fluid

I thought the mechanics community would be interested in the course notes of

Prof. K. J. Bathe on "Finite Element Analysis of Solids and Fluids". This

course was taught at MIT and now is available freely through MIT Open

CourseWare website:

http://ocw.mit.edu/courses/mechanical-engineering/2-094-finite-element-analysis-of-solids-and-fluids-spring-2008/

Enjoy!

 

"Polymer Nanocomposite Processing, Characterization, and Applications": Special Issue of Journal of Nanomaterials

Submitted by Frank Fisher on
Polymer nanocomposites

I would like to call your attention to a special Issue on "Polymer Nanocomposite Processing, Characterization, and Applications" scheduled to be published in the Journal of Nanomaterials in May 2010. The Call for Papers can also be viewed at the journal website at http://www.hindawi.com/journals/jnm/si/pnca.htm. The deadline for manuscript submission is November 1.

Modal Analysis of a tapered beam

Submitted by shiva masana on
Forums
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research

Hello everyone

I need modeshapes for a tapered beam, so I am using Ansys. By going through the tutorials I found that a beam can be modeled by creating a line and meshing it using Beam elements and assigning real constants. How can I use the beam elements for a tapered beam where  the real constants are not constant. I tried to use tapered beam element but is of no use as it the created all elements of same real constants creating a profile similar to a hack saw. 

Can anyone please help me how to mesh a tapered beam.

Change in Elastic Modulus with Plastic Deformation

Submitted by Amit Pandey on
research
Plasticity
Modulus

Article on web

http://www.eng-tips.com/faqs.cfm?fid=1441

 

The physical basis of material
properties like Young's modulus can be understood by examining
materials on the atomic scale. There are two main things that influence
the value of the modulus:



1.)     The atomic microstructure

2.)     The interatomic bonds.

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