research

 I want to model lamb wave propagation in plate which is connected to sensors in ansys..Since i am completely new to it i am unable to solve multiphysics problem.So can any one plz guide me..

Please I am currently having problem developing a UMAT for transformation-induced swelling material behavior.

I need help.

ABBA 

" Damage Detection in Bridges using a Mathematical Model by an Updating Method "

Mohammed Lamine MOUSSAOUI , Mohamed CHABAAT , Abderrahmane KIBBOUA

The 9th International Conference on Fracture and Strength of Solids, FEOFS 2013, June 2013, Jeju, South Korea

Status: Accepted

Dear everybody，

I have just studied Abaqus and would like to use Vumat to simulate the hot ductile

fracture criterion of Freudenthal which have the equation: D=integral(0-fracture strain)

of (Smises stress)*d(strain). The fracture will be appear when I reach 1 unit.

Could you please show me how to write algorithm adding temperature to calculate (D) and

out put (D) in Vumat.

thanks you so much

I am looking forward to hearing from you

hongfengtl    

Hi there,

 I came across the following question on another website, which I found intriguing:

Hi everyone,

I have a problem about my VUEL.

In my input file I define user element as 2 dimentional plane stress element by

*user element, nodes=4, type=vu1, properties=8, coordinates=2

1, 2

However, I output the variable  COORDS(NBLOCK, NNODE, MCRD)

here, MCRD, however, equals to 3 not 2, and COORDS:

-1,-1, 0

 1,-1,NaN

 1, 1,NaN

-1, 1,NaN 

 Where's wrong? Please help me.