2.2 – MATERIAL MODELS

Using the information below, choose the correct answer to the closest 3 significant figures. For questions 1 through 5, assume plane stress. For questions 6 through 10, assume plane strain.

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1) Assume plane stress:
The principal strain one is
2) Assume plane stress:
The principal strain three is
3) Assume plane stress:
The factor of safety to avoid yielding using maximum shear stress theory is
4) Assume plane stress:
The factor of safety to avoid yielding using maximum octahedral shear stress theory is
5) Assume plane stress:
The critical crack length in Mode I is
6) Assume plane strain:
The principal stress three is
7) Assume plane strain
The principal strain one is
8) Assume plain strain:
The factor of safety to avoid yielding using maximum shear stress theory is
9) Assume plane strain:
The von-Mises stress is
10) Assume plane strain:
The factor of safety to avoid yielding using maximum octahedral shear stress theory is

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