Results 131 to 140 of about 718,155 (307)

Fatigue damage of notched boron/epoxy laminates under constant amplitude loading [PDF]

open access: yes
Fatigue damage in (0, + or - 45) and (0, + or - 45,90) boron/epoxy laminates was studied with X-ray radiography and scanning electron microscopy. In addition, limited tests for residual strength and stiffness were performed.
Roderick, G. L., Whitcomb, J. D.
core   +1 more source

Evaluation of a metal shear web selectively reinforced with filamentary composites for space shuttle application. Phase 1 summary report: Shear web design development [PDF]

open access: yes
An advanced composite shear web design concept was developed for the Space Shuttle orbiter main engine thrust beam structure. Various web concepts were synthesized by a computer-aided adaptive random search procedure.
Laakso, J. H., Zimmerman, D. K.
core   +1 more source

Imide modified epoxy matrix resins [PDF]

open access: yes
High char yield epoxy using novel bisimide amines (BIA's) as curing agents with a state of the art epoxy resin was developed. Stoichiometric quantities of the epoxy resin and the BIA's were studied to determine the cure cycle required for preparation of ...
Pater, R. H., Scola, D. A.
core   +1 more source

FOD impact testing of composite fan blades [PDF]

open access: yes
The results of impact tests on large, fiber composite fan blades for aircraft turbofan engine applications are discussed. Solid composite blades of two different sizes and designs were tested. Both graphite/epoxy and boron/epoxy were evaluated.
Johns, R. H.
core   +1 more source

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