Fatigue life under random load history derived from exceedance curves using different algorithms

Prakash, Raghu V and Sunder, R (1991) Fatigue life under random load history derived from exceedance curves using different algorithms. Technical Report. National Aeronautical Laboratory, Bangalore, India.

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    Abstract

    An Analytical study was carried out to determine low-cycle13; fatigue life and cr-lck growth rates under random load sequences, generated from three different combat aircraft lead exceedanee curves. The load sequences Were generated using different pseud andors proceedures, including simulated Rainflow cycle count, extreme-to-extreme excursions, upper to lower ooumd excursion- and unrestricted peak-trough excursions . Also, tie response of a fatigue meter to a random load sequences was simulated . Fatibue damage for the different load histories was computed using low-cycle fatigue concepts and fracture mechanics concepts . The analysis was carried cut usin material constants for an Al-Cu alloy .

    Item Type: Proj.Doc/Technical Report (Technical Report)
    Uncontrolled Keywords: Exceedance curves;Life prediction under random leading;Load sequence generation techniques;Fatigue meter;Combat aircraft load spectrum;LCA load spectrum FALSTAFF load spectrum
    Subjects: ENGINEERING > Structural Mechanics
    Division/Department: Structures Division, Structures Division
    Depositing User: Mr. N A
    Date Deposited: 04 Aug 2006
    Last Modified: 24 May 2010 09:44
    URI: http://nal-ir.nal.res.in/id/eprint/1840

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