What are the failure mechanisms called, if the load is sub-critical?

cyclic fatigue

static fatigue (creep)

Which shapes of sollecitation can be chosen?

Name and give the equations for the following components + the stress ratio:

How are traditional fatigue tests performed?

unnotched samples

homogenous stress

What defines the fatigue limit in a woehler curve?

The stress value below which fatigue does not occur.

What are the stress limits of a goodman diagramm?

yield stress:

What is a Haigh Soderberg diagramm and which lines exist in it?

What are the end points of the lines?

How can the stable crack growth be described mathematically?

m, C =material constants

a=crack length

How can the cycles to failure be estimated?

What is the formula for the stress intensity factor Ki?

What is the stress ratio?

How is delta K calculated for a cyclic exitation?

How is the time to failure calculated?

How is KIc calculated?

Last changed3 months ago