Load bearing capacity
It should be noted that the strengths require down rating to account for the effects of wear, corrosion and fatigue and for the effect of temperature on yield strength.
The appearance of commercial casing analysis software has made triaxial stress analysis possible. The allowable value of the Von Mises equivalent stress is usually the yield strength of the material adjusted for temperature effects. However, it should be noted that for collapse loading, corrections are required to allow for the elastic behaviour of thin-walled pipe.
1 Collapse strength
A casing experiences a . . .