Recently, enlightened by the definition of inverse pole figure in Materials Science, I proposed an inverse-pole-figure (IPF) method for analysis of domain switching in polycrystalline ferroelectrics/ferroelastics.
Hi, I am implementing a discrete damage model with the discrete approach of embedded discontinuities but i have some problems. Could someone help me please?
I am using displecements and strains-displacements formulations of the finite element method.
Thank you for your help.
Dear all,
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I am quite new to ABAQUS and trying to model structural masonry.I am facing difficulties in defining material property and analysis procedure.I was wondering if anybody has worked on this particular area and provide me with some useful resources.
Any Help in this regard will be highly appreciated
Thanks and Regards,
Dhruba
Hi all,
I am doing modal analysis of a box placed at the table. The box is containing the electronics components inside. The electronic components are fragile to vibrations. Now i have designed the box in Pro E and have imported it in ANSY. The box is connected with the table at four corner points from the base. Note that the base of box is not placed at the table rather box is connected to table at four corner points.
We have studied the scaling of controlled nonlinear buckling processes in materials with dimensions in the molecular range (i.e., ～1 nm) through experimental and theoretical studies of buckling in individual single-wall carbon nanotubes on substrates of poly(dimethylsiloxane). The results show not only the ability to create and manipulate patterns of buckling at these molecular scales, but also, that analytical continuum mechanics theory can explain, quantitatively, all measurable aspects of this system.
Dear Prof. Dolbow
In your 1D efg program, you have used u=d(1:nnodes). I think, you should calculate "u" by summing after multiplying with the shape functions and "d". Because in the figure 2 phi(x) is not equal to one at the node. Phi(x) satisfies the partition of unity.
Please clearify my doubt if I am wrong.
Best regards
krishna
venkatakrishnaraop [at] gmail.com (venkatakrishnaraop[at]gmail[dot]com)
I would like to invite everyone attending the 2008 ASME IMECE next week in Boston to attend a keynote lecture given by Prof. Ted Belytschko of Northwestern University. The lecture will occur at 1:45 PM on Tuesday, November 4, and will be entitled "Multiscale Computations of Fracture - When Does Flaw Tolerance Occur?"
Further information on Prof. Belytschko's talk can be found here:
http://www.asmeconferences.org/Congress08/PlenarySessions.cfm
I am reading the paper of Prof. Nishioka (2001) (Int. Jour. of Solid and Fracture, Vol. 38, 5273-5301). He said that "At the earlier stage of crack deceleration, dot(KID) is positive and linear relation with crack tip velocity". I do not understood that meaning. This is from mathematical, right? If after the earlier stage of crack deceleration, which relation between dot(KID) and crack tip velocity?
