THE INFLUENCE OF FIBER ORIENTATION ON ENGINEERING CONSTANTS OF LAMINATED COMPOSITES

Abstract

A laminated composite is generally formed by stacking unidirectional laminas, with different fiber orientation angles, in the direction of the laminate thickness, in order to satisfy the design requirements. Fiber orientation influence is crucial on the composite laminate characteristics. The paper presents a study which analyzes the fiber orientation angles influence on the elastic behavior of the laminates. Therefore, the elastic engineering constants are determined for a generally orthotropic lamina and for a symmetric angle-ply laminate. The analytical results are represented by graphical distribution of the elastic engineering constants with respect to fiber orientation, for different fiber volume fractions.

Keywords

• angle-ply laminate
• generally orthotropic lamina
• engineering constants
• fiber orientation angles
• fiber volume fractions