Continuum-based theoretical and experimental studies in deformation and damage of MMCs at NASA-Lewis: Progress and trends
- NASA Lewis Research Center, Cleveland, OH (United States)
- NYMA, Inc., Brook Park, OH (United States)
To fully realize the benefits offered by MMCs, experimentally verified, computationally efficient design and life-prediction methods must be developed for the advanced multiphased materials of interest in advanced engine and propulsion systems. To accomplish this, two parallel approaches, one starting at the constituent (or microscale) and the other at the composite (or macroscale), are being pursued in the areas of deformation and damage/life of MMCs at NASA Lewis Research Center (LeRC). This presentation will provide an annotative overview and technical description of the various continuum-based theoretical and experimental studies being conducted at LeRC. Some of the topics covered include: test-method development isotropic and anisotropic viscoplastic models, anisotropic continuum damage mechanics (CDM) models for creep and fatigue, two new micro/macro homogenization techniques and a combined deformation and damage algorithm. The presentation will conclude with a discussion of issues and future directions.
- OSTI ID:
- 175282
- Report Number(s):
- CONF-950686--
- Country of Publication:
- United States
- Language:
- English
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