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A torsion experiment is performed on rods made from glass, a ductile metal and wood. What failure criteria would you use, what do you expect the failure surfaces to look like (including orientation) and
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A torsion experiment is performed on rods made from glass, a ductile metal and wood. What failure criteria would you use, what do you expect the failure surfaces to look like (including orientation) and why?

User Jingguo Yao
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Answer:

  • when the fracture parts when put together look intergranual ( glass fractures intergranually )

The Failure surface looks flat ( very ) and bright

  • when the fracture is a cup and cone fracture ( Ductile metal )

The failure surface looks dull and also absorbs light

  • wood fracture

The failure surface looks like both some fraction brittle and some fraction ductile.

Step-by-step explanation:

  • when the fracture parts when put together look intergranual ( glass fractures intergranually )

The Failure surface looks flat ( very ) and bright

  • when the fracture is a cup and cone fracture ( Ductile metal )

The failure surface looks dull and also absorbs light

  • wood fracture

The failure surface looks like both some fraction brittle and some fraction ductile.

User Jlocker
by
4.8k points
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