Free-Edge Delamination: Laminate Width and Loading Conditions Effects | Zendy

GP Sendeckyj | Zendy; ShoeiShen Wang | Zendy; W Steven Johnson | Zendy; WW Stinchcomb | Zendy; PLN Murthy | Zendy; CC Chamis | Zendy

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Free-Edge Delamination: Laminate Width and Loading Conditions Effects

Author(s) -

GP Sendeckyj,

ShoeiShen Wang,

W Steven Johnson,

WW Stinchcomb,

PLN Murthy,

CC Chamis

Publication year - 1989

Publication title -

journal of composites technology and research

Language(s) - English

Resource type - Journals

eISSN - 1945-7537

pISSN - 0884-6804

DOI - 10.1520/ctr10144j

Subject(s) - materials science , enhanced data rates for gsm evolution , composite material , finite element method , delamination (geology) , tension (geology) , composite laminates , bending , shear (geology) , stress (linguistics) , plane stress , structural engineering , composite number , compression (physics) , telecommunications , paleontology , linguistics , philosophy , subduction , biology , computer science , engineering , tectonics

The width and loading conditions effects on free-edge stress fields in composite laminates are investigated by using a three-dimensional finite element analysis. The analysis includes a special free-edge region refinement or superelement with progressive substructuring (mesh refinement) and finite thickness interply layers. The different loading conditions include in-plane and out-of-plane bending, combined axial tension and in-plane shear, twisting, uniform temperature, and uniform moisture. Results obtained indicate that axial tension causes the smallest magnitude of interlaminar free edge stress compared to other loading conditions; laminates with practical dimensions may not delaminate because of free edge stresses alone since the magnitude of these stresses are found to be quite insignificant.

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