Question

An alloy has a yield strength of 818 MPa and an elastic modulus of 104 GPa. Calculate the modulus of resilience for this alloy [in J/m3 (which is equivalent to Pa)] given that it exhibits linear elastic stress-strain behavior.

Answer 1

Modulus of resilience will be
`3216942.308j/m^3`

Step-by-step explanation:

We have given yield strength
`\sigma _y=818MPa`

Elastic modulus E = 104 GPa

We have to find the modulus

Modulus of resilience is given by

Modulus of resilience
`=(\sigma _y^2)/(2E)`, here
`\sigma _y` is yield strength and E is elastic modulus

Modulus of resilience
`=((818* 10^6)^2)/(2* 104* 10^9)=3216942.308j/m^3`