Results 51 to 60 of about 229 (133)

Probabilistic fatigue life prediction and reliability assessment of a high pressure turbine disc considering load variations

open access: yes, 2017
In the present work, a probabilistic framework for fatigue life prediction and reliability assessment of an engine high pressure turbine disc is proposed to incorporate the effects of load variations and mean stress, which provides a reference for ...
Shun-Peng Zhu   +3 more
core   +1 more source

Influential microstructural changes on rolling contact fatigue crack initiation in pearlitic rail steels

open access: yes, 2005
Rail life is controlled by the balance between wear and fatigue damage due to in service loading. To model and optimise rail life, knowledge of the fatigue crack initiation mechanism is required.
Garnham, John   +2 more
core   +1 more source

Creep Crack Initiation and Propagation: Fracture Mechanics and Local Approach

open access: yes, 1988
Both the initiation and the propagation of macroscopic creep cracks have been studied in 316-L austenitic stainless steel, and, for comparison purposes, in 2219-T851 aluminum alloy. These alloys are, respectively, creep-ductile and creep-brittle.
R. Pelloux   +3 more
core   +1 more source

Development of Advanced Creep Damage Constitutive Equations for Low CR Alloy Under Long-Term Service

open access: yes
Low Cr alloys are mostly utilized in structural components such as steam pipes, turbine generators and reactor pumps operating at high temperatures from 400℃ to 700℃ in nuclear power plants.
Xu, Qihua
core  

Oxidation-assisted creep damage in a wrought nickel-based superalloy : experiments and modelling

open access: yes, 2010
International audienceCreep damage investigation was carried out in wrought nickel-based superalloy Udimet 720LI in air at 850 °C using multiple cross-sections specimens in order to be able to make interrupted tests.
L. Rémy   +3 more
core   +1 more source

Basic modelling of creep rupture in austenitic stainless steels

open access: yes, 2017
Creep rupture can happen in two ways, brittle and ductile creep rupture. Brittle creep rupture of austenitic stainless steels proceeds with the nucleation, growth and coalescence of grain boundary cavities.
Junjing He   +3 more
core   +1 more source

Computer simulation of wear and rolling contact fatigue

open access: yes
A ductile material subjected to repeated rolling contact can accumulate very high levels of shear strain near the surface. At some point the material loses its integrity and fails, and this failure is manifested in the form of wear (the material ...
Franklin FJ, Widiyarta I, Kapoor A
core  

Multi-axial creep-fatigue life prediction considering history-dependent damage evolution : a new numerical procedure and experimental validation [PDF]

open access: yes, 2019
In this paper, a new numerical procedure based on a cycle-by-cycle analysis has been constructed for creep-fatigue behavior and life prediction of high-temperature structures under multi-axial stress states.
Zhang, Xian-Cheng   +5 more
core  

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