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Mastery ~8 min · ~0 min remaining

M10 mastery test

Assessment of NLGEOM, substeps, plasticity, and interpreting convergence.

Exit checklist

  • Linear baseline with equilibrium < 0.5%.
  • NLGEOM ON with n_sets = 10.
  • geom_dev_ratio ≥ 0.05%.
  • Plasticity with plastic_dev_ratio ≥ 5%.
  • Challenge with F = −12000 N documented.
  • study_passes=1 in a clean run.

Technical traceability

Commands: NLGEOM, TB,BISO, TBDATA, NSUBST, NEQIT, KBC, OUTRES, SET, *GET. References: Structural Analysis Guide; Material Reference. Inherited from: M07 (KEYOPT(2)=3, equilibrium). Next: M11 contact.

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

Control geometric and material nonlinearity with verifiable substeps.

Pass criterion

NLGEOM solved with n_converged=n_substeps, equilibrium <0.5% and documented deviation.

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1.What is the difference between NLGEOM,OFF and NLGEOM,ON in a slender cantilever? Critical

2.In a static ramp with KBC,0, what does TIME=0.5 represent? Critical

3.n_sets=1 after NSUBST=10 and progressive ramp. Most likely cause? Critical

4.Enter theoretical |uy_ref| (m) for L=0.5 m, h=0.04 m, b=0.05 m, F=−10000 N, E=210 GPa. Critical

m

5.How many converged substeps does the contract require for the geometric case (n_substeps=10)? Critical

substeps

6.The elastoplastic case shows a greater deflection than the elastic geometric case. Correct interpretation?

7.Every nonlinear substep converges, but the global force balance fails. What follows? Retrieval M06

8.Peak stress lies at an idealised singular edge. Which evidence is more defensible? Retrieval M07

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View complete module Download m10-kit.zip