Bone has a Young’s modulus of about 1.8 × 1010 Pa .?
Under compression, it can
withstand a stress of about 1.53 × 108 Pa before breaking.
Assume that a femur (thigh bone) is 0.51 m
long, and calculate the amount of compression
this bone can withstand before breaking.
Answer in units of mm
- NCSLv 71 month ago
Youngs = stress / strain = σ / ε
1.8e10 Pa = 1.53e8Pa / ε
ε = 0.0085
ΔL = εL = 0.0085 * 0.51m = 4.3e-3 m = 4.3 mm
If you find this helpful, please select Favorite Answer!