research
FEA
I want to model wire rope/sling as 1d-element in abaqus.
let me know the suitable 1d-elemet for wire rope/sliing.
Inaccurate UMAT result in SMP model
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Hello:
I have written a UMAT subroutine similar to the one shown in abaqus 6.11 subroutine manual 1.1.40 with a slight differences indicative of the material's rheological model.
my expanded isotropic model looks like:
sigma_x - sigmav_x/3 + vbar*sigma_dot_x + kappa*sigma_dot_x =
lambda*eplv + 2*mu*epl_x + lamdabar*eplv_dot_x +2*mubar*epl_x
where:
sigma = stress
epl = strain
_dot_ are my rate change with time
sigmav = sigmaxx + sigma_yy + sigma_zz ( hydrostatic stress)
small tube flow
I need to know how to to determine the work needed to push water through a 20 foot thinwall plastic tube ( Polyethylene) with an inner diameter of 4 mm at a rate of 100, 250 and 500 mL/minute. The tube is level throughout. What pressure will I need? How much energy does this take ? Accuracy not needed just an approx figure will be fine at this time, as we will run testing later. The reason for need this is to select a pump for the job.
Thank you so much .
Abaqus - Job aborts reporting that it can't change the current working directory.
Hello,
I have an Abaqus 6.12-3 installed on a Windows 8 64-bit system.
Everything works smoothly. I am easily able to take control of the CAE
and model, define loads, steps, sections and jobs. The problem is while
running the jobs. The job aborts splashing an error "Unable to change
the current working directory to
C:\Users\ANIABU~1\AppData\Local\Temp\Ani Abu_I-beam_3876." This happens
with all the jobs. Rarely does the job complete successfully, but I am
unable to understand the underlying procedure. I did not request any
Strength of Short Concrete Columns Confined with CFRP Sheets
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Hi everyone,
i'm working with ABAQUS and a new user. i have modelled CFRP confined concrete columns of different shapes. The results found are satisfactory but as i modelled CFRP as linear elastic material so the load displacement curve goes up and up. how can i provide an end to it?
Cohesive (zero thickness): NODE NUMBERING MIDE NOT BE CORRECT (Abaqus)
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Hi all,
I'm trying to model a 2D cohesive layer with a zero-thickness in Abaqus (6.11.2)
The shape of the layer is a quarter circle.
When modelling this i first create a cohesive layer with a certain thickness.
I then convert the part of this cohesive layer to a orphan mesh, then edit the mesh, such that a zero thickness layer is created.
However when i want to submit the job i get the following error message:
Plotting stress vs strain curve in abaqus
Dear All,
I am modelling a bridge rubber bearing using hyperelastic material (Rubber) and steel plates in abaqus. i am using mooney-rivlin hyperelastic model for rubber
After running the analysis . i like to plot the stress vs strain graph for the rubber material only and then compare it with the mooney rivlin model .can anyone tell me how to do it ?
I am very new
About constutive relation of elastic membranes
Is there some theory to describe the constitutive relation of elastic membranes？There are lots of papers studying membranes mechanics of cells, but I just want to know the mechanics of ordinary membranes which are simplified from theories of plates and shells, can anyone tell me some papers or textbooks studying this?(I've found a brief description on Allan Bower's web page, but that's too brief...)