Version 1.0, August 31, 2001, Copyright, Hugh Jack 1993-2001

18. STRAIN FAILURE

 

· Reconsider the simple example below,

 

 

· When a load is applied and removed in cycles the material may fatigue. This means the ultimate strength is effectively reduced. Design curves that can take this into account are found in handbooks, and look like those shown below,

 

 

 

 

 

18.1 POISSON'S RATIO

18.2 GENERALIZED HOOKES LAW

18.3 STRESS CONCENTRATIONS

18.4 TORSION STRESS CONCENTRATIONS

18.5 REFERENCES