Modelling of creep deformation and fracture

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

This chapter reports the recent progresses in: 1) the development of a modified hyperbolic sine law able to depict the minimum creep strain rate over a wider range of stress level; 2) the development of the creep fracture criterion and model based on the cavity area fraction along grain boundary calibrated with the most representative and comprehensive cavitation data obtained from X-ray synchrotron investigation; and 3) the development of mesoscopic composite approach modelling of creep deformation and creep damage. The first progress facilitates to overcome the difficulty in creep deformation modelling caused by stress breakdown phenomenon; the second progress is of a really scientific sound and fundamental new approach, first in the world; the third progress provides the concept and tool, at the appropriate size scale, for the modelling of the creep deformation and creep fracture. They all contribute to the specific knowledge and new methodology to the topic area. Furthermore, it is expected that cavitation fracture modelling methodology reported here will find use in the analysis and modelling of other type of failure such as ductile and fatigue failure. This Chapter presents an excellent example of interdisciplinary collaborative research and it advocates further such collaboration in its conclusion.
LanguageEnglish
Title of host publicationStrength of Materials
EditorsHector Jaramillo S.
PublisherIntechOpen
ISBN (Electronic)9781789859942
ISBN (Print)9781789859935
Publication statusAccepted/In press - 2019

Fingerprint

Creep
Cavitation
Synchrotrons
Strain rate
Grain boundaries
Acoustic waves
Fatigue of materials
X rays
Composite materials

Cite this

Xu, Q., & Lu, Z. (Accepted/In press). Modelling of creep deformation and fracture. In H. Jaramillo S. (Ed.), Strength of Materials IntechOpen.
Xu, Qiang ; Lu, Zhongyu. / Modelling of creep deformation and fracture. Strength of Materials. editor / Hector Jaramillo S. IntechOpen, 2019.
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Xu, Q & Lu, Z 2019, Modelling of creep deformation and fracture. in H Jaramillo S. (ed.), Strength of Materials. IntechOpen.

Modelling of creep deformation and fracture. / Xu, Qiang; Lu, Zhongyu.

Strength of Materials. ed. / Hector Jaramillo S. IntechOpen, 2019.

Research output: Chapter in Book/Report/Conference proceedingChapter

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Xu Q, Lu Z. Modelling of creep deformation and fracture. In Jaramillo S. H, editor, Strength of Materials. IntechOpen. 2019