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Hello everyone, I'm trying to model a screw connection assembly that comprises of a thin steel sheet confined between two thicker steel sheets and connected with self-tapping screws, a picture of the screw assembly test can be found here: https://postimg.cc/HJzKxW5V/ecb43c4a. According to the...

Hello all, I'm trying to determine the angle of inclination of a steel panel. The panel is a thin steel sheet made up of S4R elements (explicit solver) subjected to a lateral force. First I need to determine which elements exceed the yield stress(fy) then I need to extract the stress components...

Hello all, I have a cold-formed steel portal frame that I want to analyze under monotonic pushover and non-linear time history analysis. The sections in my frame are made of built-up hat sections. I have successfully modeled the built-up studs using the section designer option, however I...

Hello, I have a conceptual question. Why is the frequency (or period) of the first mode used as an estimate to determine the velocity or time step of quasi-static analysis using the explicit solver? The theory states that the dominant response of a quasi-static analysis will be the first...

Hey all, have some trouble deriving the angle of inclination for a SPSW bounded by rigid columns/frames. I have made the same post in several math forums without any help so hopefully I'll get a few responses here. The angle of inclination is derived by applying the principle of least internal...

Hello everyone, So I have an assembly of a cold-formed steel shear wall, a screenshot of the meshed assembly can be found here (https://files.engineering.com/getfile.aspx?folder=7ac54ee4-c3a4-475a-9b29-0b9860f34703&file=CFS_Wall_annotations.png). I have validated my model against monotonic and...

Hello all, so here's my issue: I have a cold-formed steel shear wall made up of a frame and a thin sheathing (0.8 mm) subjected to a quasi-static cyclic loading protocol. Let's call this experiment one. After the experiment is complete, the sheathing was manually cutout from the frame as shown...

Hey all, Does anybody know how to debug abaqus subroutines using breakpoints rather than relying on the .msg/.log file? I have a relatively long VUEL subroutine and when I try to test it I get a segmentation fault error which can basically mean anything.

Dear All, I'm trying to run a test model using a user-defined element in explicit (VUEL). The test model involves performing displacement controlled cyclic load on a single element pinned at one end and free at the other (load is applied at the 2nd node). The VUEL in question was retrieved from...

Hey everyone, I'm running some quasi-static simulations using ABAQUS explicit on a steel shear wall assembly containing 10 parts, my work is basically divided to verifying two experiments, a static pushover and a cyclic experiment. So far I'm getting somewhat acceptable results for the pushover...

Hello all, I'm running a set of quasi-static pushover/cyclic test on a shear wall assembly using explicit. My issue is that sometimes the analysis would abort suddenly and report the following error: ERROR in job messaging system: Error in connection to analysis Error in job Base_Beam...

Hello all, I have a general question regarding general contact using ABAQUS/Explicit I'm modeling a shear wall assembly made from several shell parts (S4R; beams/columns/steel sheet). I've positioned the parts in the assembly with an initial gap between each part equal to half the shell...

Hey all, I've been facing an issue in defining imperfections in an assembly I've been analyzing using both explicit/implicit solvers; my problem is as follows: I'm modeling a steel shear wall assembly consisting of two back-to-back beam parts, two back-to-back column parts, and an infill steel...

Hey all, I'm modeling an assembly of a steel shear wall using S4R elements. I'm using a elastic-perfect plastic material model and a relatively fine mesh (10 mm global seed). I want to include geometric imperfections in my displacement controlled general static step; from my research and what...