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Slide 12

We now look at the behavior of a shaft made of a ductile material under torsional loading. Hooke’s law applies only when the shear stress is below the yield stress, tau y .The value of the torque at the start of yield is given by T yield is equal to tau y times J over r zero, where tau y is the shear yield strength of the material and r zero is the outer radius of the shaft. Note also that the outer surface yields first and then the plastic deformation progresses to the center of the shaft as the torque increases.

Introduction

Chalk Talks
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Engineered
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Turkey bone

Virtual Tests
Aluminum
Turkey bone
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Test Data
Aluminum
Turkey bone
PMMA
Cast iron

Lab Manual
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