An Assessment of Buffer Strips for Reduction of Stress Concentration At Cutouts in Composite Laminates
Abstract
A shear lag solution for a hybrid unidirectional buffer strip laminate containing a rectangular cutout is presented. Fiber stresses and displacements in the main panel and buffer strips are given as explicit functions of fiber and matrix properties, and laminate and cutout configurations. Stress concentration factors and laminate ultimate strengths for both soft and stiff buffer strips are presented. A substantial improvement in the notched strength is shown to be possible by using low modulus and high strength fibers for buffer strips. The stress concentration factors for a rectangular cutout are compared with those of a rectilinear crack in a buffer strip laminate. © 1987.
Recommended Citation
L. R. Dharani, "An Assessment of Buffer Strips for Reduction of Stress Concentration At Cutouts in Composite Laminates," Composites Science and Technology, Elsevier, Jan 1987.
The definitive version is available at https://doi.org/10.1016/0266-3538(87)90010-8
Department(s)
Mechanical and Aerospace Engineering
International Standard Serial Number (ISSN)
0266-3538
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 1987 Elsevier, All rights reserved.
Publication Date
01 Jan 1987
