Hello Pratik,
You need to include *DATABASE_BINARY_INTFOR_FILE in the input and specify the intfor output time step and the intfor file name (typically we use "intfor" as the file). In addition, you need to SAPR=SBPR=1 on the *CONTACT card 1 to trigger the intfor output for that contact. The analysis will generate intfor, intfor01, intfor02 , etc files. Drag and drop the first one, named "intfor", into the LSPP GUI or open it through File > Open > LS-DYNA Binary Plot.
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