...R John; DJ Buchanan An optimization procedure was developed to deduce the fiber bridging stresses from crack opening displacements measured in situ during crack growth. This procedure was used to determine the bridging stress distribution during fatigue crack growth in a unidirectionally reinforced...

...J Telesman; LJ Ghosn; P Kantzos A review of three different methods used at NASA Lewis to account for the effect of fiber bridging on fatigue crack growth (FCG) in metallic and intermetallic titanium-based composites is presented. Of the three methods, the fiber pressure model (FPM) was the only...

... and 0.5 at temperatures of 21, 82, and 93°C (70, 180, and 200°F) using a center-cracked panel geometry (measurements were made in English units and converted to SI units). The objective was to examine the contributions of the effects of crack closure and fiber bridging of the crack on the material...

...WS Johnson; PD Mangalgiri An investigation was conducted to (1) see if fiber bridging could be eliminated or at least reduced and (2) evaluate an alternative approach for determination of in-situ Mode I fracture toughness values of composite matrix materials. Toward this end, double cantilever beam...