Step to hold bolt preload
Step to hold bolt preload
(OP)
I inherited an input deck that has this step after the first step of applying bolt pre-load. Unfortunately I am not sure I understand its purpose. fyi , node 90001 is a pre-tension node.
*STEP,INC=1
Step 2: Substitute bolt load with resultant length change
*STATIC
.1,1
*BOUNDARY, FIXED
900001, 1,
*CLOAD,OP=NEW
*END STEP
*STEP,INC=1
Step 2: Substitute bolt load with resultant length change
*STATIC
.1,1
*BOUNDARY, FIXED
900001, 1,
*CLOAD,OP=NEW
*END STEP





RE: Step to hold bolt preload
what this step, it hold the node 900001 in a fix position and take away the loading on the driving node 900001.
The analysis assumed that the blot will not move after the per-stress.
RE: Step to hold bolt preload