The amount of compression
Bone has a Young's modulus of about 18x10^9 Pa under compression, it can withstand a stree of about 160x10^6 Pa before breaking. Assume that of a femur (thighbone) is 0.50 m long, and calculate the amount of compression this bone can withstand before breaking.
The young's modulus E of the bone is defined as thr ation of tenile stress/ tensile strain. Or
E = tensile stress/tensile strain strain.Or
18*10^9 pa = 160*10^6/ (strain/length of bone)). Therefore,
strain = [160*10^6/(18*10^9)](0.5m)
So the amount of breaking strain is 1/225m or 0.004444m