research
XFEM ABAQUS Help
Choose a channel featured in the header of iMechanica
I am trying to run an XFEM analysis which consists of assembly of more than 20 instances. I am getting the error, ABAQUS CANNOT ALLOW MORE THAN 20 ENRICHMENT REGIONS IN ONE MODEL. Is there anything I could do? I need to define XFEM cracks (Special>Cracks>Crack Manager> Create > XFEM Crack )for all the 30 parts assembly.
Please assist.
Elastica arm scale
Can configurational forces be exploited to design a new type of scale?
See the explanation and an example of use at http://www.ing.unitn.it/~bigoni/elasticscale.html
If you're having trouble playing videos on YouTube, click here to watch it.
stress at a point other than integration points in VUMAT/UMAT
Hi all,
The question is how can the stress at a point other than integration points be evaluated in VUMAT/UMAT. Interpolation may be a general method. However, to me, it seems not so easy to be implemented, for I have no idea of the way to retrieve the necessary information of all integration points (their indexes, positions etc.) belongint to a identical FE. Any help would be appreciated.
New shear lock free finite elements with arbitrary higher order derivative
A set of highly efficient and shear lock free finite elements based on Timoshenko beam and Reissner-Mindlin plate theories has been developed for the analysis of thin and thick structures. These elements have arbitrary higher order derivatives and do not require any spcial integration scheme. All are isoparametric elements.
P.Subramanian
USNCTAM Perspectives on Mechanics in Medicine
Dear Colleagues.
I would like to share with you a perspective article on mechanics in medicine
by a commission from US National Committee of Theoretical and Applied
Mechanics ( online):
Electrets in soft materials...
This work---whose abstract appears below, has been accepted for publication in Phy. Rev. E: http://journals.aps.org/pre/abstract/10.1103/PhysRevE.90.012603
Transverse shear stresses in Reissner Mindlin theory
How is it possible to obtain the transverse shear stresses correctly, not constant, by Reissner Mindlin theory?
Equilibrium equation would be the first solution, but, once the second derivatives of bilinear shape functions are zero, no results is appeared.
Thanks in advance for any help!
Virtual Special Issue: 'Outstanding research contributions in the area of nonlinear continuum and computational mechanics'
The 2014 Nathan M. Newmark Medal was awarded to Professor Herbert A. Mang at the annual ASCE Structures Conference, which took place in Boston, April 3–5, 2014. Professor Mang was awarded the Newmark Medal for his outstanding research contributions in the area of nonlinear continuum and computational mechanics that clarified the cause of collapse of important concrete structures and quantified the influence of the initial post buckling behavior of metallic structures.