TY - JOUR
T1 - Simulation of fracture behavior of unidirectional sic/sic composite exposed in air at 823–1673 k
AU - Morishita, K.
AU - Ochiai, S.
AU - Okuda, H.
AU - Nakayama, H.
AU - Sato, M.
N1 - Funding Information:
The present work was supported by the New Energy and Industrial Technology Development Organization (NEDO), Japan.
PY - 2005
Y1 - 2005
N2 - It is known that SiC/SiC composite has high strength and toughness, but is degraded when exposed in air at high temperatures due to the propagation of the crack made by the premature fracture of the SiO2 layer. It is also known that the fracture morphology of this composite varies from fiber pull-out type to non pull-out type with progressing oxidation. The present work aimed to describe such a behavior with a computer-aided Monte Carlo shear lag simulation method. The experimentally measured variation of strength of the unidirectional composite as a function of thickness of the SiO2 layer and also as a function of exposure time and temperature, and the experimentally observed variation of fracture morphology with progressing oxidation, could be reproduced satisfactorily by this method.
AB - It is known that SiC/SiC composite has high strength and toughness, but is degraded when exposed in air at high temperatures due to the propagation of the crack made by the premature fracture of the SiO2 layer. It is also known that the fracture morphology of this composite varies from fiber pull-out type to non pull-out type with progressing oxidation. The present work aimed to describe such a behavior with a computer-aided Monte Carlo shear lag simulation method. The experimentally measured variation of strength of the unidirectional composite as a function of thickness of the SiO2 layer and also as a function of exposure time and temperature, and the experimentally observed variation of fracture morphology with progressing oxidation, could be reproduced satisfactorily by this method.
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U2 - 10.1163/156855405774984048
DO - 10.1163/156855405774984048
M3 - Article
AN - SCOPUS:28844464717
SN - 0927-6440
VL - 12
SP - 693
EP - 706
JO - Composite Interfaces
JF - Composite Interfaces
IS - 8-9
ER -