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Fatigue Life Tab

Analysis conditions for the fatigue life are set on this tab.

It is in the [Edit Material Property] dialog box. See [How to Set Body Attribute/Material Property].

 

 

The setting is for the fatigue life analysis by the stress solver.

The will show up if [Fatigue life assessment] is selected in the analysis condition.

 

 

 

Setting Item

Notes

Specifying Method

Apply the values specified for the analysis conditions

Applies coefficients of Manson-Coffin law's specified in the analysis condition of the fatigue life.

Specify for each material property

Applies a coefficient of Manson-Coffin law’s to each material property.

Coefficient of Manson-Coffin Law's

Coefficient of Manson-Coffin Law's sets the coefficient of Manson-Coffin law's to calculate the life

 

Manson-Coffin law

Nf = C Δεne^n

where Nf is the fatigue life (unit: cycles). Δεne is the equivalent inelastic strain amplitude (unit: %)

 

[C] represents the fatigue life when the equivalent inelastic strain amplitude (Δεne) is 1%.

An integer greater than 0 is acceptable.

[n] is an influence parameter of Δεne.

A negative real number smaller than 0 is acceptable.

 

 

Refer to [Fatigue Life Assessment] of the Technical Notes for more details.