Blog posts
Crack Propagation using XFEM ( What happens to dof's corresponding to enriched nodes)
I am working on crack propagation . I am trying to figure what factors should be taken into account when the crack is being propagated using XFEM.
I am especially interested to know what happens to the additional dof's corresponding to enriched nodes. Once the crack is propagated and crack tip is at new location , we add new dof's corresponding to enrichment functions , but what happens to the information stored by the dof's of previous enriched nodes,do we forget them altotgether , or do we map it to the new enriched nodes?
Gradient based cohesive zone models
Hello,
Strain gradient based (non-local) plasticity and damage models have been studied quite extensively in the literature.
I was wondering if anyone has experience in the development of cohesive zone models that obtain the tractions in front of crack tip not only as a function of the diplacement jump, but also as a function of the gradient of displacement jump.
If yes, can you please point me to the reference?
How can I apply angular velocity on a gear in ansys
Dear friends,
I would like to apply angular velocity on a gear in ANSYS. Do you have any idea? Is there any firend having such example? If yes, can you share?
thanks
Evalauation of shape functions for nodes on the boundary in weak form
I am doing my Masters Thesis on Application of Mesh free method on Laser cutting.
I am using Radial point interpolation method for evaluation of the shape functions.I have successfully applied it to the interior nodes and I am using weak form for the nodes on the natural boundaries.
I am facing difficulty in application of numerical integration for the functions in the weak form .I am using circular subdomain and applying Gauss quadrature formula for the numerical integration.
I would be glad if I can get some help in this regard.
Thank you
Evaluation of Gauss Quadratures for a unit circle
How do we apply Gauss Quadrature Integration formula to a Circle?
Thank you
Regards
Sharmistha Sarangi
New Graduate Textbook on Micromechanics and Nanomechanics
World Scientific Pub. Co. will soon (2008 Winter) publish a new graduate textbook on Micromechanics and Nanomechanics. The book is based on a lecture notes that have been used in Berkeley for seven years. Reading of book requires minimum knowledge of continuum mechanics and mathematics, and the book is intended for the first year graduate students as well as those practitioners who have no time to read the literature for self-study.
Plasticity model for crash analysis
Hi,
can somebody please tell me what is the best plasticity model to simulate a high speed collision ,for example invoving a car and why?.
Contact analysis in Abaqus
Hi,
I created to solid models in two different files ecah solid model consit of nodes and elements and then imported these files into Abaqus. Now I have these two solid modles in two different files inside abaqus.
My questions now is: how can I import one of the models into the another for contact analysis?
Thanks
More replies to Yavari, fractals, strongly emotional disputes, and what really leads to Nobel prize
Dear Yavari
I have promised more replies on Mandelbrot, fractals, strongly emotive discussions in journals, and here is a coincise statement, which I take from a Nobel prize, prematurely passed away last year. I think it has a lot to teach (including the kind of attitude that leads to Nobel prize, i.e. close to no human weakness), you will recognize the real name of the "Caesar" in this book is somebody with a 58 pages CV on his web site, most likely.
For a better idea of fractals, read please the other attachment.
Regards
Mike