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Demonstration ~10 min · ~41 min remaining

MPC184 and BEAM188

Lagrange KEYOPT vs. a CSOLID section; load applied at head_pilot.

Step 3 — MPC184 and BEAM188 connectors

Comparison of rigid MPC184 and elastic BEAM188 connectors
Figure 3. Same local N/V; BEAM188 shows greater compliance in uy_head.
ET,2,MPC184
KEYOPT,2,1,1
KEYOPT,2,2,1
E,head_pilot,thread_pilot

ET,2,BEAM188
SECTYPE,1,BEAM,CSOLID
SECDATA,bolt_d
E,head_pilot,thread_pilot

MPC184 case: rigid beam with Lagrange multipliers to recover SMISC. BEAM188 case: finite axial bolt stiffness. Load: F,head_pilot,FX and FY.

MAPDL deformed shape with rigid MPC184 connector
Figure 4. Deformed shape with MPC184 (rigid connector).
MAPDL deformed shape with elastic BEAM188 connector
Figure 5. Deformed shape with BEAM188: same load, greater head compliance.
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