The stress€“strain diagram for a bone is shown and can be described by the equation ε = 0.45(10^€“6) σ + 0.36(10^€“12) σ³, where σ is in kPa. Determine the modulus of toughness and the amount of elongation of a 200-mm-long region just before it fractures if failure occurs at ε = 0.12 mm/mm.

Transcribed Image Text:

-e = 0.45(10-")o + 0.36(10-12)a³