Effects of loading rate and temperature on dynamic fracture of ceramic matrix compositesA hybrid experimental-numerical procedure was used to determine the dynamic fracture initiation toughnesses and the dynamic stress intensity factors of alumina, TiB2-particulate/SiC-matrix, and SiC(w)/Al2O3-matrix composites at room and elevated temperatures under static and impact loadings. The dynamic fracture initiation toughnesses at room and elevated temperatures were greater than the corresponding static fracture toughness. The crack velocity versus the dynamic stress intensity factor relations showed minor differences due to temperature changes but significant differences due to the change in loading rates.
Document ID
19900048425
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Yang, K. H. (Washington Univ. Seattle, WA, United States)
Kobayashi, A. S. (Washington Univ. Seattle, WA, United States)
Emery, A. F. (Washington, University Seattle, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Subject Category
Composite Materials
Meeting Information
Meeting: International Symposium on Ceramic Materials and Components for Engines