Stress characteristics of unidirectional composites with triple surface notches

This paper deals with the stress characteristics of multilayered unidirectional composites with triple parallel-arranged and equally spaced surface notches. Two cases are considered: composites with infinite fibers, and composites containing finite fibers. For the first case, a Fourier series expans...

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Bibliographic Details
Published in:Composites science and technology 1995, Vol.55 (3), p.261-268
Main Authors: Zhao, J.H., Zhao, Y., Yu, L.J.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
load concentration factors
Mechanical properties
Physical properties
Polymer industry, paints, wood
Properties and testing
stress characteristics
surface notches
Technology of polymers
unidirectional composites
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Summary:This paper deals with the stress characteristics of multilayered unidirectional composites with triple parallel-arranged and equally spaced surface notches. Two cases are considered: composites with infinite fibers, and composites containing finite fibers. For the first case, a Fourier series expansion and a series of ingenious mathematical treatments are used to solve a system of differential-difference equations. For the second case, the normal method of solving a system of linear ordinary differential equations with constant coefficients is adopted. The numerical results reveal an interesting phenomenon: the load concentration factors in intact fibers near notches change from high to low then revert to high.
ISSN:0266-3538
1879-1050
DOI:10.1016/0266-3538(95)00102-6