High temperature low cycle fatigue

Identification of Low Cycle Fatigue Parameters of High Strength Low-alloy (hsla) Steel at Room Temperature

S. Bulatović, Yugoslav River Shipping, Serbia, Lj. Milović, University of Belgrade, Faculty of Technology and Metallurgy, Serbia, A. Sedmak, University of Belgrade, Faculty of Mechanical Engineering, Serbia, I. Samardžić, University of Osijek, Mechanical Engineering Faculty, Slavonski Brod, Croatia Low cycle fatigue test was performed in ambient atmosphere at room temperature. Cycle loading of ...

A Novel Viscosity-Based Model for Low Cycle Fatigue Creep Life Prediction of High-Temperature Structures

Damage evolution during low cycle fatigue, creep, and their interaction behavior is actually a ductility exhaustion process in response to cyclic and static creep. In this article, a novel viscosity-based model for low cycle fatigue creep life prediction is presented in an attempt to condition viscosity-based approaches for general use in isothermal and thermo-mechanical loading. In this model,...

Effect of Low Cycle Fatigue Predamage on Very High Cycle Fatigue Behavior of TC21 Titanium Alloy

The effect of low cycle fatigue (LCF) predamage on the subsequent very high cycle fatigue (VHCF) behavior is investigated in TC21 titanium alloy. LCF predamage is applied under 1.8% strain amplitude up to various fractions of the expected life and subsequent VHCF properties are determined using ultrasonic fatigue tests. Results show that 5% of predamage insignificantly affects the VHCF limit du...

Low cycle fatigue analysis of temperature and frequency effects in eutectic solder alloy

Low cycle isothermal mechanical fatigue testing of a eutectic alloy 63Sn/37Pb was carried out in a systematic manner over a wide range of frequencies (10–1 Hz) and temperatures (240 to 150°C) with the total strain set at different values (1–50%). The low cycle fatigue behavior of the eutectic solder was found to be strongly dependent on test temperature and frequency. If the Coffin–Manson model...

High Temperature Fatigue Crack Propagation in INCONEL718