Failure mechanisms in CAS/SiC composite as a function of the strain rate

Conference · Thu Nov 30 23:00:00 EST 1995

OSTI ID:135775

Martin, A; Puente, I; Sanchez, J M ^[1]

---

1. CEIT, San Sebastian (Spain)

Room temperature tensile tests at variable strain-rates in a Nicalon{reg_sign}/CAS continuous fibre reinforced glass ceramic matrix composite, with cross-ply architecture [(0/90){sub 3}]{sub s}, are presented and analysed with reference to deformation and failure mechanisms (matrix cracking, fibre debonding, pullout, etc.). The experimental strain rates used range from 10{sup -4} to 10{sup +1} s{sup -1}. It is observed that, within the examined experimental range, the strain energy density increases as the strain rate increases, even when fibre pullout extent decreases. This is explained by a larger matrix degradation.

• OSTI ID: 135775
• Report Number(s): CONF-9508127--
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CERAMICS
CRACKS
FRACTOGRAPHY
SILICON CARBIDES
STRAIN RATE
TENSILE PROPERTIES