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Engineering 225

Engineering 225. Lab 5 Combined Loads Ductile and Brittle Failures. Ductile and Brittle Failure.

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Engineering 225

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  1. Engineering 225 Lab 5 Combined Loads Ductile and Brittle Failures

  2. Ductile and Brittle Failure In this picture we see a turkey tibiotarsus bone fractured under torsional loading. It can be seen that failure occurs along a helix inclined at an angle of 450 to the longitudinal axis. This type of failure is typical of brittle materials since they tend to fail along planes perpendicular to the direction of maximum tension.

  3. Ductile and Brittle Failure This picture shows a ductile metal shaft fracture in torsion. It has failed by shearing off along a plane perpendicular to the axis of the shaft. This type of failure is typical to ductile materials since they can deform in shear more readily than they can fracture in tension.

  4. Ductile and Brittle Failure

  5. Ductile and Brittle Failure Fracture surfaces for brittle (chalk) materials

  6. Ductile and Brittle Failure Fracture surfaces for ductile (Tootsie roll) materials

  7. Combined Loading Foam beam with stress elements (rectangles) marked on it for visualization

  8. Combined Loading

  9. Combined Loading

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