Back to results
University of Illinois at Urbana-Champaign
A Model for Joining the Fatigue Crack Initiation and Propagation Analyses
Abstract
dc:descriptionAn analytical model for nonarbitrarily defining the crack initiation length (a(,I)) of a notched member on basis of the minimum total life estimate (Life-calculation method) is proposed. The crack initiation length (a(,I)) is not a fixed value, as usually assumed, but varies with stress level (or life), notch size, notch geometry, and material. The partitioning of crack initiation life (N(,I)) and crack propagation life (N(,P)) can be achieved using this model. This model provides an interpretation of fatigue notch size effect and a powerful means for numerically determining Neuber and Peterson parameters "SQRT.((rho)" and "a".
Degree
thesis:*- Name thesis:degree_name
- Ph.D.
- Level thesis:degree_level
- Dissertation
- Discipline thesis:degree_discipline
- Metallurgical Engineering
- Grantor
- University of Illinois at Urbana-Champaign
- Year dc:date
- 2014
Author and committee
dc:creator, dc:contributor.*- Author dc:creator
-
- Chen, Wen-Ching
Subjects
dc:subject × 1Rights
- Language dc:language
- eng
Identifiers
dc:identifier.*- Identifier
- (UMI)AAI8017920
- OAI identifier oai:identifier
- oai:www.ideals.illinois.edu:2142/68641