High temperature nonproportional low cycle fatigue using fifteen loading paths

Hamada, Naomi; Sakane, Masao; Itoh, Takamoto; Kanayama, Hideyuki

doi:10.1016/j.tafmec.2014.07.006

Cited by 11 publications

(7 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Just to name few works, Hamada et al [2] discussed the effects of non-proportional loading on low-cycle fatigue (LCF) lives for Type 304 stainless steel at 923 K. In fact, hightemperature applications sometimes involve multiaxial damage rather than uniaxial. Fifteen proportional and nonproportional strain paths at a strain rate of 0.1% s À1 were employed.…”

Section: Introductionmentioning

confidence: 99%

Advanced Materials for Applications at High Temperature: Fatigue Assessment by Means of Local Strain Energy Density

Gallo

Berto

2015

Adv Eng Mater

View full text Add to dashboard Cite

The interest on fatigue assessment of steel and other alloys at high temperature has increased continuously in the last years. However, high cycle fatigue of notched components at high temperature has not been deeply investigated experimentally and theoretically. The present paper investigates the accuracy of Strain Energy Density (SED) averaged over a control volume approach when applied to high-temperature fatigue data from notched components. In the present work, a large bulk of high-temperature fatigue data, taken from the literature and regarding notched components made of different advanced materials, is reanalyzed. In detail: C45 carbon steel at 250°C, Inconel 718 at 500°C, and directionally solidified superalloy DZ125 at 850°C are considered. The main advantage of SED averaged over a control volume is that different geometries can be summarized in a single narrow scatter band. From an industrial viewpoint, the use of a geometry-independent parameter (and fatigue curve) leads to a considerable advantage in terms of time and cost

show abstract

Section: Introductionmentioning

confidence: 99%

Advanced Materials for Applications at High Temperature: Fatigue Assessment by Means of Local Strain Energy Density

Gallo

Berto

2015

Adv Eng Mater

View full text Add to dashboard Cite

show abstract

“…he authors analyzed the non-proportional LCF lives of type 304 steel tube specimens fatigued using 15 strain waveforms shown in Fig. 8 at 923 K [22]. Figs 9 (a)(c) correlate non-proportional fatigue lives with the ASME equivalent strain range ( ASME ) and two maximum stress ranges of  I e and  I .…”

Section: Non-proportional Stress and Strain Ranges For Life Evaluationmentioning

confidence: 99%

Evaluation and visualization of multiaxial stress and strain states under non-proportional loading

Itoh¹,

Sakane²,

Morishita³

2015

Frattura Ed Integrità Strutturale

View full text Add to dashboard Cite

This paper presents a simple method of determining stresses and strains and a severity of loading history under non-proportional loadings with defining the rotation angles of the maximum principal stress and strain in a three dimensional stress and strain space. Based on the method, non-proportional stress and strain ranges are derived and applicability of the range to the life evaluation for low carbon steel under non-proportional random strain paths are discussed. The strain range taking account of intensity of loading path reducing life can be suitable parameter for multiaxial fatigue life evaluation under multiaxial non-proportional loading. This paper also shows a method of visually presenting the principal stress and strain that assists designers to understand the loading mode whether proportional or non-proportional under 3 dimensional (6 stress/strain components) multiaxial loading.

show abstract

“…It has been widely acknowledged that non-proportional loading, where applied multiaxial stress components are not in proportion to one another, is more harmful than proportional loading in fatigue [1][2][3][4]. However, the mechanisms leading to the degradation of fatigue lifetime remain unclear.…”

Section: Introductionmentioning

confidence: 99%

A crystal plasticity investigation of slip system interaction, GND density and stored energy in non-proportional fatigue in Nickel-based superalloy

Dunne

2020

International Journal of Fatigue

View full text Add to dashboard Cite

High temperature nonproportional low cycle fatigue using fifteen loading paths

Cited by 11 publications

References 21 publications

Advanced Materials for Applications at High Temperature: Fatigue Assessment by Means of Local Strain Energy Density

Advanced Materials for Applications at High Temperature: Fatigue Assessment by Means of Local Strain Energy Density

Evaluation and visualization of multiaxial stress and strain states under non-proportional loading

A crystal plasticity investigation of slip system interaction, GND density and stored energy in non-proportional fatigue in Nickel-based superalloy

Contact Info

Product

Resources

About