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Mastery ~8 min · ~0 min remaining

M12 mastery test

Assessment of CERIG, MPC184/BEAM188, SMISC, and the model’s limitations.

Exit checklist

  • 0.1 mm gap documented; no numerical bonding.
  • n_head_dep=n_thread_dep=25.
  • CERIG,pilot,ALL,UXYZ at the head and thread (active solid DOFs).
  • MPC184 and BEAM188 with local N/V consistent with the load.
  • Global equilibrium <0.5% in both cases.
  • study_passes=1 in a clean run.

Technical traceability

Commands: CERIG, MPC184, BEAM188, SECTYPE, SECDATA, ETABLE, SMISC, *GET. Reference: Structural Analysis Guide; Element Reference. Inherited from: M03 (beam), M11 (gap). Next: M13 modal analysis.

Mixed decision practice

Decision station · Advanced behavior

These incidents combine nonlinear history, contact, and pretension. Choose the evidence needed to defend assembly mechanics.

The incident does not tell you which topic it belongs to. Diagnose before choosing a command.

1 / 3

Incident1of3

Observed symptom

The last substep converges, but the load–displacement curve shows a jump and an unexpected unloading segment.

Which interpretation is defensible?

Choose the first professional action

Module check

Show that you can do it without hints

You need at least 80% and every critical check correct. Each new attempt uses a different six-question variant. Retained mastery is checked later.

6 checks

Competency

Idealize bolted joints with CERIG, comparable 1D connectors, and force-resultant export.

Pass criterion

CERIG pilot+ALL,UXYZ; 25+25 absorbed; N_local/V1_local consistent; documented external regulatory verification.

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1.Why use CERIG,pilot,ALL,UXYZ with SOLID185 dependent nodes? Critical

2.What is interface_gap=0.0001 m used for in the deliverable? Critical

3.MPC184: KEYOPT(2)=1 versus KEYOPT(2)=0. What does it enable for postprocessing?

4.How many head_dep nodes does the base deliverable contract require? Critical

nodes

5.Enter |N_local| measured (N) of the MPC184 (1 significant digit ok). Critical

N

6.Where is the M12 bolt code check performed?

7.A connector is remeshed with the wrong element type. Which earlier principle prevents it? Retrieval M03

8.Why must connector N and V be reported with their local orientation? Retrieval M07

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View complete module Download m12-kit.zip