# Yield stress vs critical load stress

## Homework Statement

In Euler's theory , it's stated that the critical stress of beam is always larger than the yield stress of beam ...I dont really undertstand the differnce between them . Critical stress is defined as the stress that the mximum stress applied before the beam starts to buckle....

## The Attempt at a Solution

Does the yield stress here means the stress which the beam start to deform plastically ?
Why shouldnt the yield stress is smaller than the critical stress ?

When object is subjected to stress , the beam will deform plastically before it starts to bend and break .... So , i think that yield stress is smaller than the critical stress [/B]

Last edited:

PhanthomJay
Homework Helper
Gold Member

## Homework Statement

In Euler's theory , it's stated that the critical stress of beam is always larger than the yield stress of beam ...ISo , i think that yield stress is smaller than the critical stress
Who told you that?

Who told you that?
it's based on my understanding , correct me if I'm wrong

PhanthomJay