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Many thanks for the info. That is really helpful. Mick

Dear all, Hope you are all keeping well. I am searching for polymers that can be used for contact lens carrier during manufacturing process to replace stainless steel that is currently used. The ideal material has to meet the following requirements: * Good UV resistance * Withstand 80 degree...

Dear all, First of all, let me explain the problem briefly. I was set to model a spherical cell contained by a block of gel. I was trying to calculate the circumferential strain across the cell surface. The output results from the simulation provide many sorts of strain, eg. Principal strains...

Hi, I'm trying to apply a strain in X-dirction (1,0,0) on the top surface of a block of gel that is equivalent to a given amount of Octahedral shear strain. Could someone give me some suggestions on the conversion, please? Many thanks.

Hi, I'm trying to calculate the fluid velocity of a multi-layered gel under compression. When defining the material properties, there is a list of options to choose from under Pore Fluid. I've dealt with permeability with another project before. But in this application, the permeability is...

Hi guys, I am trying to simulate micro-indentation tests on given materials. I asked to compare a list of strains across different materials, namely, "Hydrostatic strain", "Deviatoric strain", "equivalent strain" and "effective strain". I am a bit confused about these strains and don't know...

Thanks, Nagi. I think I made a mistake using the static analysis. Thanks very much for your help. Michael

Hi guys, I am trying to model the viscoelastic behaviour of a tested material. In Abaqus, I used Prony under time domain to assign viscoelastic properties. When I tested it with two different loading rates, I didn't see much change from force-deflection curve. My question is if this is due to...

Hi, I am trying to use connectors to link the end nodes of two beams in Abaqus. Is there any way to assign the dimensions of the connectors, eg, diameters? Thanks. Feng

Thanks for your reply. When I re-checked my model yesterday, I found that it wasn't the contact that was causing the error but something else, most likely to be one of the "Tie" functions I used in the model. Does it make more sense? Any further hints based on that? Thanks, Feng

Hi guys, I am trying to model a block containing a sphere under disp. load on the block. I've set up contact between the sphere and the surrounding surface from the block. I got the following error msg. Can anybody give me some advise? ***ERROR: THE NORMAL TO ELEMENT 1 INSTANCE...

Hi guys, I am trying to use agarose gel to simulate the 3D loading environment of cultured cells. Could anyone give me some hints on its material properties and how to assign these properties to my model? Thanks in advance, Feng

Hi guys, I'm trying to assign viscoelastic material properties to a part of my model. By searching from the literatures, I've collected some parameters that were achieved from creep tests on the material. These parameters are: effective viscosity, relaxation time and shear constant. Could...

Hi guys, I am trying to create a tensegrity structure with pre-stress/pre-tension on the cables. I am wondering whether there is an element type in Abaqus such that I could assign pre-stress/pre-tension on (like the SPAR element in ANSYS). Many thanks. Feng

Thanks for the replies, guys. Feng

Hi guys, I am trying to create a 6-strut Tensegrity structure as a part of my on-going project. I am wondering whether there is a way or certain rules to locate the vertices of the Tensegrity structure so that minimum displacement occurs when a pre-tension is assigned to the cables. Many...

Hi everyone, Does anybody know if there is a type of beam or truss element in ABAQUS that a stress can be assigned? Many thanks. Feng

Thanks very much, Rob. I appreciate your help. Feng

Hi, I've developed an FE model that contains 3 steps. I am wondering if there is a way to calculate the displacement that purely caused by step 3 (not the overall displacement outputed from step 2 and step 3) of a node. Many thanks. Regards Feng

Hi, Could anyone tell me how to assign prestress to an element (say, truss element or beam element), which is a part of the structure? Many thanks. Feng