Search results for query: *

Hi all, I modelled a beam subjected to fire, I applied all the elements temperatures input to my model as the experiment results. The fire test last 40 mins, I have the beam temperatures recorded every 1 minute in the test. In the FE model, I used *AMPLITUDE to define the total time step of 10...

Hi, I have an I-section built with shell elements, the cross section is at the X-Y plane, then the span is along Z direction, as shown in the attached image file. Loads applied on the top flange. I want to see the stresses generates on the WEB, which stresses output should I refer to? S11 or...

Hi, how to define scale factors of various modes in *imperfection? the scale factor is base on what? please advise

Hi, wondering does anyone familiar with TNO DIANA? need helps on that.

Hi, The analysis of my file was completed, i had 2 steps in the file, 1st step is apply loading (say 100kN), 2nd step is apply heat (say 500 degree celcius). I had my restart file writen. i am happy with my 1st step result, but not very satisfy with the 2nd step result. wondering would that...

Hi, I model a slab, in my model consisted of 2 step: step 1= apply load step 2= apply heat (temperature) with constant load. anyone got any idea why i not getting my external work energy (ALLWK) = internal energy (ALLIE)? My understanding that ETOTAL=0.0 (ETOTAL=ALLIE-ALLWK), but the results...

Hi all, would that be possible to put temperature into every layers of the solid composite layup? I have a 130mm thick slab, built up with solid elements, I divided the thickness into 10 layers (13mm per layers), i would like to apply different temperature to every layers of the slab, i.e 20oC...

Hi all, can I continue an abaqus job that accidently been disrupted? I was running an analysis, my PC shut down suddenly while the file still running. I tried to open the unfinished *.odb file, it gave error... ***ERROR: The ABAQUS database file is corrupt. If this was transferred from another...

Hi all, wondering would that be possible to shift 2 different type of elements in a model. i.e i use SHELL element S4R in my 1st step, after completed the 1st step analysis, I would like to use DS4 SHELL element (on the same set of elements) to carry on the 2nd step. the reason that i want to...

Hi all, how to define position tolerance in *TIE, is it in distance (in the unit of m, mm) or a factor (in %)? thanks

hi, is that any good books, documents which i could refer to. I would like to write a UMAT subroutine which i want to define myown material properties (stress-strain curves etc.). I am new in Fortran, I not really understand how the subroutine work in ABAQUS. please advise.

hi, i want to add imperfection on my node, i have the following input; *IMPERFECTION, SYSTEM=R axial, 1, 0, 2250 i got the following error; ***ERROR: NODE NUMBERS MUST BE POSITIVE INTEGERS LINE IMAGE: ASSEMBLY_AXIAL, 1, 0, 2250 what went wrong with my input, i'd defined my node number in...

hi, any idea on how to determine the fracture energy in *concrete, *tension stiffening, type=displacement model? any good documents/book explain on how the fracture energy work in concrete? wondering how to determine the 'specimen length' (L) as mentioned in Abaqus user menu 18.5.1, is that the...

hi, I applied a displacement initial boundary condition on my slab model, say on node 1, -10mm at direction y, meaning to say i want the node 1 of my slab to displace at -10mm in the initial step. then in my loading step, I apply load on the whole slab (at y direction), say 100kN/m2. I got the...

hi, how could i get time vs displacement plot by using '*static, riks' analysis? as the '*static, riks' keep giving me arc length vs displacement plot.

hi, anyone has successfully ran an analysis for concrete model (*concrete) with heat applied on it? need advise on that. thanks.

Hi, i have my input file as the follwong, *STEP, AMPLITUDE=RAMP, NAME=MIN 5, INC=500, NLGEOM=YES *STATIC, RIKS 0.01, 1, 0.00001, 1 *Temperature SLABNODES, 200 *END STEP ** *STEP, AMPLITUDE=RAMP, NAME=MIN 10, INC=500, NLGEOM=YES *STATIC, RIKS 0.01, 1, 0.00001, 1 *Temperature SLABNODES, 400...

SIMPLE QUESTION,if i been using Newton (N) and mm in my model, for Density (kg/m3) to i need to convert it to g/mm3?

hi, any idea what went wrong with my model? i simply put 2 plain concrete block (150 x 300mm) together, and put spring between them (as contact), my main porpose is to make sure that the 2 blocks will act as one single block (150 x 600mm), but by checking the deflection (after the...

hi, how to defind S11 and E11 result output of the spring element?