Jing_Yang's blog

Dear all,

Where can we find the datum of plastc and damage evolution in uniaxial case for concrete of some specfic strength? It seems that datum associated with plasticity or damage can not be found in concrete code. But when you use the damaged plasticity model integrated in ABAQUS, these datum are indispensible.

I know this  question is a not new one and it has been posted before. But these posts seems not completely answer this question. I tested  for77 and for90 codes for isotropic elasticity respectively. The analysis based on for77 codes runs successfully and the for90 codes can be compiled successfully.  However, the analysis based on for90 codes shows the following warning:

Hi, everyone:

    I'm recently very interested in computational nolinearity. Would you like recommend some monographs on the computation nonlinearity so that i can have a better understanding of the mechanism of ABAQUS.

    Thanks

 Dear all:
    I recently find an example in ABAQUS documentation cannont convergence.
    The parametres related with the iteration of the Risk method is 

arc length  initial increment    minmum increment  maximum increment  maximum number 
 1                0.0001                1E-10              1E+36       100000
    The location of the exmaple in ABAQUS documentation is Abaqus Example Problems Manual->1 Static Stress/Displacement Analyses->1.1 Static and quasi-static stress analyses-> 1.1.5Collapse of a concrete slab