Fracture Behavior of Boron Aluminum Composites at Room and Elevated Temperatures.
Abstract
This progress report describes the results of research work on the characterization of fracture behavior in boron/aluminum (B/Al) composites. Emphasis has been placed on the correlation between the observed failure modes and the deformation characteristics of center-notched B/Al composties, where particular attention has been given to the proper test procedure and analytical appraoch employed. The purpose of this work is not merely to generate and furnish quantitative data but also to discuss the appropriate methodology to be employed in characterizing a new composite material system. The investigation focused on the deformation characteristics, crack tip damage growth, fracture strength, notch sensitivity, and the associated characterization methods. Extensive acoustic emission information is reported and an attempt is made to distinguish among major failure mechanisms, and to monitor fatigue damage progression. Considerable care must be taken to distinguish between emission due to new damage growth and emission due to friction.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1982
- Accession Number
- ADA127492
Entities
People
- Jonathan Awerbuch
Organizations
- Drexel University