Ask a question about XFEM paper

Submitted by S.Jamal Mostafavi on Thu, 11/14/2013 - 09:12

I'm Jamal Mostafavi. I want to have some research about Xfem Method.I Read Prof TED BELYTSCHKO paper with title of "A FINITE ELEMENT METHOD FOR CRACK

GROWTH WITHOUT REMESHING". I have a quastion about this papar:

In eauation (9), He used General eqation of finite element.

uh = sum(u(i)*phi(i))

i from 1 to 10

phi is bilinear shape function

when i want to calculate the displacement of one point in element one(for example), How can I calculate the displacement of one point at the center of element?Do i use only 4 node around this point or I use 10 nodes of crack modeling?(4 nodes means node around this point) or 10 nodes(He assumed 10 nodes to model crack)

which open source code do i use for modeling displacement around crack?

thanks