Conference proceeding
THE ROLE OF MULTISCALE STRAIN LOCALIZATIONS IN FATIGUE OF MAGNESIUM ALLOYS
PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, 2014, VOL 9
01 Jan 2015
Abstract
The reliable characterization of fatigue behavior and progressive damage of advanced alloys relies on the monitoring and quantification of parameters such as strain localizations as a result of both crystallographic deformation mechanisms and bulk response. To this aim, this article attempts to directly correlate microstructural strain at specific fatigue life to global strain as well as surface roughness in Magnesium alloys. Strain at the grain scale is calculated using Digital Image Correlation (DIC), while surface topography gradients are computed using roughness data at different stages of the fatigue life. The results are further correlated to Electron Back Scatter DULL action (EBSD) measurements which reveal the profuse and spatially inhomogeneous nature of the crystallographic deformation mechanisms related to yielding and fatigue crack initiation. Emphasis is given on using multimodal NDE data to formulate first a description of the current state of the material subjected to fatigue loading and on identifying conditions that can probabilistically drive the affected by both local and global response, governing degradation process.
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5 Record Views
Details
- Title
- THE ROLE OF MULTISCALE STRAIN LOCALIZATIONS IN FATIGUE OF MAGNESIUM ALLOYS
- Creators
- Jefferson Cuadra - Drexel Univ, Philadelphia, PA 19104 USAKavan Hazeli - Johns Hopkins Univ, Baltimore, MD USAMichael Cabal - Drexel Univ, Philadelphia, PA 19104 USAAntonios Kontsos - Drexel UniversityASME
- Publication Details
- PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, 2014, VOL 9
- Conference
- ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, 2014
- Publisher
- Amer Soc Mechanical Engineers
- Number of pages
- 5
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Mechanical Engineering and Mechanics
- Identifiers
- 991019170117804721
InCites Highlights
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Engineering, Mechanical
- Mechanics