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I have modeled a Compact Tension specimen and the calculated KI matches the value you can calculate using the close form solution, for instance from the Anderson's Fracture Mechanics: Fundamental and Applications book. Anyway, I have answered my original question. Unlike other codes, Abaqus...

Dear All, I have been calculating Stress Intensity Factors with Abaqus and they compare very closely with close form solutions, for different mesh densities and element types. The question I have is: would anyone know which method does Abaqus use to calculate Ks? The Abaqus Theory Guide only...

Hello, I am also unfortunately new to Abaqus, however, the resulting eigenvalues which you obtain from a FEM buckling analysis are the load factors. For instance, say you apply 1 Lbf/in compression to your plate, and the first eigenvalue is 10. That means that the predicted critical buckling...

Hello Mustaine3, the duct being pulled (the front duct in the images on the attached file) is not constrained at the base (the right end side). The only BC is therefore the prescribed displacement. This model obviously doesn't seems very useful as it. I am building it step by step, so once I...

Dear All, First of all, thank you for reading this. I am new to Abaqus and especially Abaqus Explicit but have a lot of experience with FEM, implicit and explicit. I am investigating using Abaqus explicit for the following application and I am running into a singular error. I have two...

I see. As a first approximation I would suggest to simulate the crack as a segment of no attachment between the upper and lower surface. What I mean, be creative in the modeling so that there is an segment and is free to open I hope this helps, -Francesco

VCCT: Virtual Crack Closure Technique. Are you after the stress intensity factors? Are you trying to predict where the crack will go (KI, KII and KIII)? If so, I have a set of instructions on how to do that in ANSYS than I can share with you. Let me understand if this is what you are trying to do.

Have you looked into VCCT elements? I can help you with that. What do you mean with placing the crack at the midspan of the beam? Can you be more descriptive of your specific problem?

Hello, I am having problems performing a non-linear static analysis with strain softening. I cannot use any Structural -> Nonlinear -> Inelastic -> Rate Independent material models because they are all hardening models, and I get an error if I input a negative slope for one of the segments. So...

Hello Jalil, thank you very much for your response. I have to apply moments to thousands of nodes so I can't represent each moment by a couple of forces. Do you know how is it usually done? Thank you again, -Francesco

Hello, I am not able to apply moments to nodes of a 3D model. I tried using both SOLID 45 and SOLID 185. On a 2D model (using SHELL63) I had no problems applying moments to nodes. Is there a particular reason why it is not possible to apply moments to nodes of 3D elements? Or am i doing...