Longitudinal splitting in epoxy and K-polymer composites - Shear lag analysis including the effect of fiber bridging

Longitudinal splitting in epoxy and K-polymer composites - Shear lag analysis including the effect of fiber bridging

The shear-lag model used previously by Nairn (1988) to derive a fracture mechanics analysis of longitudinal splitting in double-edge notched unidirectional composites was used to investigate the effect of fibers bridging across the longitudinal split in these composites. Using the new analysis, the...

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Veröffentlicht in:Journal of composite materials 1991-09, Vol.25 (9), p.1086-1107
Hauptverfasser: Nairn, John A., Liu, Siulie, Chen, Hsichieh, Wedgewood, Alan R.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
bridging
Composite Materials
epoxy resin
Exact sciences and technology
fibers
Forms of application and semi-finished materials
fracture toughness
Laminates
Polymer industry, paints, wood
Technology of polymers
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container_end_page 1107
container_issue 9
container_start_page 1086
container_title Journal of composite materials
container_volume 25
creator Nairn, John A.
Liu, Siulie
Chen, Hsichieh
Wedgewood, Alan R.
description The shear-lag model used previously by Nairn (1988) to derive a fracture mechanics analysis of longitudinal splitting in double-edge notched unidirectional composites was used to investigate the effect of fibers bridging across the longitudinal split in these composites. Using the new analysis, the longitudinal splitting fracture toughness, G(Lc), was determined for Hercules AS4/3501-6 graphite/epoxy laminates and for K-polymer based laminates containing Magnamite IM-6 as the graphite reinforcing fiber. Results show that the inclusion of the fiber bridging in the fracture analysis significantly affects the reported fracture toughness.
doi_str_mv 10.1177/002199839102500901
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source SAGE Complete A-Z List; NASA Technical Reports Server
subjects Applied sciences
bridging
Composite Materials
epoxy resin
Exact sciences and technology
fibers
Forms of application and semi-finished materials
fracture toughness
Laminates
Polymer industry, paints, wood
Technology of polymers
title Longitudinal splitting in epoxy and K-polymer composites - Shear lag analysis including the effect of fiber bridging
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