Results 261 to 270 of about 16,122 (303)

Damage model of creep-fatigue interaction

Engineering Fracture Mechanics, 1979
Abstract The interaction between creep and fatigue has been studied theoretically by considering a macroscopic crack, interacting with continuously distributed microdamage. This damage is a measure of an assumed deterioration of the material. A Dugdale crack model is used with most deformation and damage concentrated to narrow regions ahead of the ...
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Creep-Fatigue Interactions: Test Methods and Models

2011
Description Sixteen peer-reviewed papers address the latest research in the area of creep-fatigue crack formation and crack growth in high temperature materials and structures. Topics deal with: Creep-fatigue interaction behavior of ferritic steels and austenitic stainless-steels — covers properties,
Ashok Saxena, Bilal Dogan
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Creep-fatigue interaction in austenitic stainless steels

Metallurgical Transactions A, 1977
Low cycle fatigue failures occur by the initiation and controlled growth of a surface crack. The development of crack propagation models, based on continuum mechanics, have enabled successful predictions of fatigue life at both room and elevated temperatures.
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Studies on crack growth rate under high temperature creep, fatigue and creep-fatigue interaction—I

Engineering Fracture Mechanics, 1980
Abstract Many experimental studies have been reported on the measurements of crack growth rate and the observation of crack growth behaviour under high temperature creep, fatigue and creep-fatigue interaction in literatures. However, many of them have been done in air atmosphere.
T. Yokobori, H. Sakata
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The Creep-Fatigue Interaction in Solders and Solder Joints

Journal of Electronic Packaging, 1990
Two models are proposed for relating the metallurgy of the solder to the growth of fatigue cracks through solder joints. These models illustrate how different aspects of the creep behavior can contribute to the so-called “creep-fatigue interaction”. The first model treats fatigue crack growth through the solder, far from the interface between solder ...
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Advances in Creep, Fatigue and Creep–Fatigue Interaction of High Temperature Structural Materials

Transactions of the Indian National Academy of Engineering, 2022
A. Nagesha, G. V. Prasad Reddy, M. Vasudevan, Koteswararao V. Rajulapati   +3 more
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Creep-fatigue interaction rules for P91

2014
A number of methods for predicting the creep-fatigue life of P91 steel are presented and discussed. Beside the interaction diagram method established in the design codes, ASME Subsection NH and RCC-MR, and the ductility exhaustion modification (DE) established in BS-R5, a set of simpler models are considered.
Pohja, Rami, Holmström, Stefan, Nilsson, K.-F., Payten, W., Lee, H.-Y., Aktaa, J.   +5 more
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A Model for Creep/Fatigue Interactions in Alloy 718

1985
An experimental investigation was conducted to evaluate the crack growth rates in Inconel 718 at 649°C under symmetric and unsymmetric triangular waveshapes and triangular waves with hold times at maximum load. Data are presented as crack growth rate per cycle as a function of total cycle time.
T Nicholas, T Weerasooriya, NE Ashbaugh
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Creep fatigue interactions in power plant components

Materials at High Temperatures, 2014
AbstractThe increasing need for flexible electricity generation means that most components must perform under cyclic operating conditions. The multiplicity of generating options also means that defining a ‘typical’ cycle is difficult. Thus, in addition to the traditional hot and cold starts and stops, there are requirements for rapid load changes on ...
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Creep-Fatigue Interactions in Advanced Eutectic Superalloys.

1984
Abstract : This project has been concerned with three facets of cyclic deformation of advanced eutectic composites: (a) high cycle, stress controlled fatigue; (b) stress controlled crack growth; (c) low cycle, strain controlled fatigue. Three alloys were selected for study: Nitac 14B, Cotac 744 and AG-170.
N. S. Stoloff, N. Bylina, K. N. Jones
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