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Hi Ok. the negative volume element are generated due to the sequence of creation of the element, for example if we have an quadratic element call element 1, so the definition of the element is 1, 1,2,3,4 the first number is the name of the node, then node number 1 is in the corner up left, node...

Hi pirs i work with subroutines..i use sigini, sdvini und umat. I don´t understand why do you use "interative" in the end, i ever run my models without it!...on the other hand it is so unusual that Aba.param.inc create an error. maybe if you put your subroutine i can help you to identify the...

Hi i am trying to do a 2D model in hypermesh, but when I export this as a .inp file to abaqus, the nodes enumerate is contrary as abaqus need, so it report element of negative area, for example if I have an element hypermesh enumerate this as: 1, 1,4,3,2 and the correct way for abaqus is: 1...

i want know if abaqus can run with anyone fortran version or if it is necesary some kinds of fortran depending the abaqus that i use.. Thanks

Hi Someone know how to calculate the liquefaction potential of a model in Abaqus?..I should use a constitutive model specific?..what kind of model reproduce liquefaction or what parameters i need to calculate this lquefaction in granular soils?...I hope you can help me..thanks a lot! Regards...

eleme_dam.inphttp://files.engineering.com/getfile.aspx?folder=18a3106c-6a09-48e2-b1f6-8aaaf45c2c01&file=element_dam.inp

nodes_dam.inphttp://files.engineering.com/getfile.aspx?folder=6e80de85-d3aa-4277-9d3c-7d9ff0fc05c3&file=nodes_dam.inp

hi I am working modelling an earth dam, with a sequence of construction, but i have a problem in the last step, it say "FIXED TIME INCREMENT IS TOO LARGE". I had changed a lot of times the time increment, but it don't work, then i use a adaptive mesh, but it can be used with certain elements..i...

this is the other filehttp://files.engineering.com/getfile.aspx?folder=02e1b61f-7dfd-4fb4-ba31-bc3726034385&file=element_dam.inp

i forget attach the other files that need the modelhttp://files.engineering.com/getfile.aspx?folder=81a2cfa3-ee43-405b-8b1d-e6ca7e618e96&file=nodes_dam.inp

Hi, I am working modelling an earth dam, with a sequence of construction, but i have a problem in the last step, it say "FIXED TIME INCREMENT IS TOO LARGE". I had changed a lot of times the time increment, but it don't work, then i use a adaptive mesh, but it can be used with certain...

your subroutine is correct, but you need one conditional that use the subroutine in every case that you need, for example if (mat="mat1") then subroutine One else (mat="mat2") subrotuine Two endif I use this form and this run...i hope can help you!

How many steps are you using..you should use many step varing the depht of penetration.. or you can try the follow, create one step with the hollow cylinder penetrated totally and control the time of penetration, you can use very small time increment for this purpose..

Hi yaston4 I am using subroutines too, but i use latest Fortran version. there is no problem the fortran that you use, however your abaqus should reconized this. For example i use fortran 11.1 with abaqus 6.7 and visual studio 2008 and all work perfectly...

Hi there is two ways to use Umat with abaqus first is using the abaqus command, you should write the following in the command lines.. abaqus job=(name of your .inp file) user=(name of your Umat) another way is with abaqus cae, in the part of material you property , in material manager you...