A dimensional analysis approach to notch sensitivity and fracture of composites with applications to design
Abstract
Structures made of fiber reinforced composites are designed with varying material characteristics in mind and it is essential that it is possible to at least compare the effectiveness of various composite systems for specified requirements. The requirements of a system, which may include notch insensitivity, high impact toughness and high resistance to delamination, among others, depend on its application. A dimensional analysis approach is investigated and used to quantify notch sensitivity in terms of deviation of material behavior from LEFM. The model is applied to a variety of configurations of the T300/5208 graphite-epoxy system in order to illustrate the usefulness of the 'brittleness number' concept in the investigation of composites fracture.
- Publication:
-
Engineering Fracture Mechanics
- Pub Date:
- May 1992
- Bibcode:
- 1992EnFM...42..139K
- Keywords:
-
- Dimensional Analysis;
- Fiber Composites;
- Fracture Mechanics;
- Notch Sensitivity;
- Structural Design;
- Carbon Fiber Reinforced Plastics;
- Delaminating;
- Graphite-Epoxy Composites;
- Impact Strength;
- Structural Mechanics