Superposition of the notched strength of composite laminates | Zendy

Pipes R. Byron | Zendy; Gillespie John W. | Zendy; Wetherhold Robert C. | Zendy

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Superposition of the notched strength of composite laminates

Author(s) -

Pipes R. Byron,

Gillespie John W.,

Wetherhold Robert C.

Publication year - 1979

Publication title -

polymer engineering and science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.503

H-Index - 111

eISSN - 1548-2634

pISSN - 0032-3888

DOI - 10.1002/pen.760191604

Subject(s) - superposition principle , materials science , composite laminates , composite number , composite material , sensitivity (control systems) , stacking , structural engineering , mathematical analysis , mathematics , physics , nuclear magnetic resonance , electronic engineering , engineering

An improved macroscopic model for predicting the strength of a composite laminate containing a circular notch is developed. Two constants are introduced which uniquely determine the notch sensitivity of a given material. A superposition method for the notched strength of composite laminates is developed which allows data for arbitrary materials and laminate configurations to be superimposed upon a single master curve. The influence of material orthotropy upon notched strength is discussed. A relative notch sensitivity parameter is introduced which allows quantification of the notch sensitivity of a given composite material system, stacking sequence, or laminate configuration.

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