# Mechanical properties of solids

Young's modulus of bone for tensile is $16× 10^9 N/m^2$ and for compressive is $9 × 10^9 N/m^2$

Why is tensile Young's modulus is more than for compressive?

• Do you have a reference for those numbers? They seem to be wrong by several orders of magnitude. You may be confusing tensile and compressive strength with Young's modulus. – alephzero Jan 21 '17 at 13:54
• @alephzero it is given in NCERT textbook of physics, I added screenshot – Fawad Jan 21 '17 at 14:10
• Your post says the Young's modulus is $16 \times 10^7$ but the table says $16 \times 10^9$. That's what was confusing me. But the NCERT tensile strength numbers are 10 times smaller than springer.com/cda/content/document/cda_downloaddocument/… (page 8 of the PDF). – alephzero Jan 21 '17 at 16:11
• @alephzero that was a typo , I just want to know why there is difference for two types – Fawad Jan 21 '17 at 17:31
• – JM97 Mar 5 '17 at 13:12