Fatigue design curve under LCF as well as combined LCF and HCF regime at 923 K in a type 316LN stainless steel. Issue 8 (25th March 2019)

• Record Type: Journal Article
• Authors: Sarkar, Aritra; Nagesha, Atikukke
• Is Part Of: Fatigue & fracture of engineering materials & structures. Volume 42:Issue 8(2019)
• Page Start: 1838
• Page End: 1843
• Publication Date: 2019-03-25
• Subjects: 316LN SS -- design curve -- high cycle fatigue -- low cycle fatigue -- low cycle fatigue‐high cycle fatigue interaction; Materials -- Fatigue -- Periodicals; Fracture mechanics -- Periodicals; 620.1123
• DOI: 10.1111/ffe.13010
• Languages: English
• ISSNs: 8756-758X

Abstract

Abstract: The paper presents a novel approach towards developing fatigue design curve under combined loading involving low cycle fatigue (LCF) and high cycle fatigue (HCF), in a type 316LN austenitic stainless steel. The total strain life curve used for fatigue design is modified taking into account the effect of varying load history. The methodology relies on the test data obtained to previous studies by authors pertaining to LCF‐HCF interaction using a sequential pattern at 923 K. Modified design curves are generated at 923 K where the effect of varying degree of prior LCF exposure at strain range of 0.12% is accounted for, on HCF.