Ceramic matrix composites properties/microstresses with complete and partial interphase bond

Conference · Sat May 01 04:00:00 EDT 1993

OSTI ID:6185481

Mital, S K; Murthy, P L.N.; Chamis, C C

A multilevel substructuring technique which includes a unique fiber substructuring concept is used for the analysis of continuous fiber reinforced ceramic matrix composites. This technique has four levels of substructuring--from laminate to ply, to supply, and then to fiber. A stand-alone computer code CEMCAN (Ceramic Matrix Composites Analyzer), incorporating this technique and specifically for the simulation of ceramic matrix composites behavior, is currently under development at NASA Lewis Research Center in Cleveland, Ohio. The thermal and mechanical properties, along with the microstresses, for a SiC/RBSN (silicon carbide fiber and reaction bonded silicon nitride matrix) composite at different fiber volume ratios and varying degrees of interfacial bond around the fiber circumference are computed. Values predicted by CEMCAN computer code are shown to bound the experimentally measured values. Results also show that transverse tensile strength test can be a sensitive test method to assess interfacial conditions.

• Research Organization: National Aeronautics and Space Administration, Cleveland, OH (United States). Lewis Research Center
• OSTI ID: 6185481
• Report Number(s): N-93-29071; NASA-TM--106136; E--7816; NAS--1.15:106136; CONF-9305232--; CNN: RTOP 510-01-50
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
C CODES
CARBIDES
CARBON COMPOUNDS
CERAMICS
COMPUTER CODES
COMPUTERIZED SIMULATION
FIBERS
MATERIALS
MATRIX MATERIALS
MECHANICAL PROPERTIES
NITRIDES
NITROGEN COMPOUNDS
PNICTIDES
REINFORCED MATERIALS
SILICON CARBIDES
SILICON COMPOUNDS
SILICON NITRIDES
SIMULATION
STRESS ANALYSIS
TENSILE PROPERTIES