This paper is concerned with the basic fracture mechanisms involved in matrix-dominated failures in fibrous composite laminates, Specifically, interlaminar fracture in the form of free-edge ply delamination and intra- laminar fracture in the form of multiple transverse cracks are investigated. In each case, a theory is formulated based on the classical linear fracture mechanics concept of strain energy release rate as a criterion for crack growth. A finite element technique incorporating the virtual crack-closure procedure is developed to generate numerical results. Simultaneously, an experimental study is conducted using a series of graphite epoxy laminates in the form of (±25/90n)s, n = 1,2,3. Part 1 of this paper presents the development of the method from the conceptual, physical and numerical considerations, while Part 2 provides for a comparison between the analyti cal and experimental results.

Initiation and Growth of Transverse Cracks and Edge Delamination in Composite Laminates Part 1. An Energy Method

A method is presented for predicting the failure strength and failure mode of mechanically fastened fiber reinforced composite laminates. The method in cludes two steps. First, the stress distribut...

/pdf/strength-of-mechanically-fastened-composite-joints-3z4ttvbdhs.pdf

Strength of Mechanically Fastened Composite Joints

https://repository.tudelft.nl/islandora/object/uuid%3Ae22dcf36-b9be-4b7a-b7fa-4626e8d5f393/datastream/OBJ/download

Methods for the prediction of fatigue delamination growth in composites and adhesive bonds: A critical review

The ultimate tensile strengths of Thornel 300/Fiberite 1034 graphite epoxy composites were measured with material temperatures ranging from 200 K to 422 K and moisture contents from 0% (dry) to 1.5...

Effects of moisture and temperature on the tensile strength of composite materials

This paper is a detailed review of the strain rate dependence of some mechanical properties of polymer composite materials. An attempt is made to present and summarize much of the published work relating to the effect of strain rate studies done in the past on the tensile, shear, compressive, and flexural properties of composite materials to better understand the strain rate effects on these mechanical properties of fiber-reinforced polymer composite materials. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 94: 296–301, 2004

/pdf/strain-rate-effects-on-the-mechanical-properties-of-polymer-27dhdc6paf.pdf

Strain rate effects on the mechanical properties of polymer composite materials

Composite materials — testing and design

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Composite materials — testing and design