Examples of extracting matrices from ABAQUS

2D frame This is a plane steel frame with box sections subjected to a point load at one node figured as below. An dynamic implicit analysis step was defined and the following lines were added at the end of input file. ** *STEP *MATRIX GENERATE, STIFFNESS, MASS, LOAD, Structural Damping,Viscous Damping *MATRIX OUTPUT, STIFFNESS, MASS, LOAD, Structural Damping,Viscous Damping, FORMAT=COORDINATE *END STEP

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Time and Amplitude in ABAQUS

I am recently using the dynamic analysis in Abaqus, so I decided to summarize the understanding of time and amplitude in it so that I can refer to this article later if needed. Time Step Time: the time period in *STEP definition. Total Time: the sum of all the Step Time. Natural time: actual time that one thing takes. The time in Abaqus/Standard does not have any actual meaning, it can be understood as the relative time. The time in

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Extract Matrix from ABAQUS

Matrix in ABAQUS Matrices: Stiffness, Mass, Viscous Damping, Structural Damping, Load Formats:  FORMAT=MATRIX INPUT (default) to specify that the output use the matrix input text format that is consistent with the format used by the matrix definition technique in Abaqus/Standard. FORMAT=LABELS to specify that the output use the standard labeling format. FORMAT=COORDINATE to specify that the output use the common mathematical coordinate format.

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