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FULL TIME LECTURER WITH POTENTIAL SECURITY OF EMPLOYMENT 

DEPARTMENT OF MECHANICAL ENGINEERING

COLLEGE OF ENGINEERING

UNIVERSITY OF CALIFORNIA, SANTA BARBARA

Equilibrium theories for a continuum body may be formulated by either of the
following the classic paradigms: (1) We begin with the stress postulation (Cauchy’s formulation) and write down the kinematics, conservation laws, and
constitutive relations. In this way, one can obtain a system of field equations
which, presumably, can be solved upon specifying boundary conditions and
determine the equilibrium state of the body. (2) A second way is to start from
the energy postulation (Green’s

Hi, I am trying to do some simulation with abaqus.

As I downloaded the abaqus 6.12, it needs fortran to support the subroutine.

then, i found fortran 10 and 11 from web, and i should download fortran 10 or fortran 11?

hello,

 I am trying to solve a simple cantilever beam (2D)  in ansys.

I wish to find out the critical time-step that can be used to explicitly solve a transient problem. 

I started with modal analysis to determine the maximum natural frequency of the model. I then computed dt < 2/Wmax.

I use this dt with beta = 0.0 and gamma = 0.25 (Newmark parameters). However the solution is unstable.

I am including my apdl script with this post.