Nonproportional low cycle fatigue criterion for type 304 stainless steel

Article Abstract:

A study of the proportional and nonproportional strain in controlled low cycle fatigue tests using 14 strain histories for type 304 stainless steel specimens revealed a decrease in the fatigue life by a factor of 10 when the principal strain directions are rotated. A considerable influence on fatigue life is also noticed by interchanging the two principal strain directions. The nonproportional fatigue data is correlated by the product of the principal stress and strain ranges.

Steel, Stainless

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Creep-fatigue life evaluation for Sn-3.5Ag solder

Article Abstract:

The creep-fatigue life evaluation of Sn-3.5Ag solder under-push pull loading is studied using fast-fast, fast-slow, slow-fast, slow-slow and strain-hold strain waves. Extensive creep-fatigue data are generated using these strain waves and the applicability of four conventional creep-fatigue damage rules, the linear damage rule, the frequency modified fatigue life, the ductility exhaustion model, and the strain range partitioning methods are examined.

Primary nonferrous metals, not elsewhere classified, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Tin, Fatigue testing machines, Ductility, Properties

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A simple model for stable cyclic stress-strain relationship of type 304 stainless steel under nonproportional loading

Article Abstract:

This article discusses application of the inelastic constitutive model for predicting stable cyclic nonproportional stress response in stainless steel materials. Simulation analysis shows that the model precisely calculates the stable stress-strain relationship under nonproportional loading conditions.

Japan, Statistical Data Included, Models, Steel, stainless, Plasticity, Stress-strain curves, Dynamic testing (Materials)

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