Fatigue crack propagation parallel to fibers in unidirectionally reinforced SCS-6/Timetal{reg_sign}21S

Journal Article · Sun Sep 15 00:00:00 EDT 1996 · Scripta Materialia

DOI:https://doi.org/10.1016/1359-6462(96)00215-1· OSTI ID:382541

John, R; Lackey, A F; Ashbaugh, N E ^[1]

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1. Univ. of Dayton Research Inst., OH (United States)

The primary weakness of a component made of unidirectionally reinforced SCS-6/Timetal{reg_sign}21S is its susceptibility to transverse loads. The strength of the component in the transverse direction is significantly lower than that in the longitudinal direction under monotonic, sustained and fatigue loading conditions. The previous investigations did not investigate the effect of applied stress ratio on the crack growth behavior of the composite. This paper describes extensive characterization of the fatigue crack growth parallel to fibers in unidirectional SCS-6/Timetal{reg_sign}21S using two geometries, three applied stress ratios and closure measurements.

• OSTI ID: 382541
• Journal Information: Scripta Materialia, Vol. 35, Issue 6; Other Information: PBD: 15 Sep 1996
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COMPOSITE MATERIALS
FATIGUE
CRACK PROPAGATION
SILICON CARBIDES
TITANIUM BASE ALLOYS
CRACKS
STRESSES
ORIENTATION
DEFECTS
FRACTURE MECHANICS
STRESS INTENSITY FACTORS
INTERFACES