Inhouse Training Report

Composites A composite is a structural material that consists of two or more combined constituents that are combined at a macroscopic level and are not soluble in each other. One constituent is called the reinforcing phase and the one in which it is embedded is called the matrix. The reinforcing phase material may be in the form of fibers, particles, or flakes. The matrix phase materials are generally continuous. Advantages of Composites1. High Strength to Weight ratio. 2. Specific Stiffness 3. Fatigue life 4. Thermal Expansion 5. Corrosion resistance

ClassificationParticulate Composites

Flake Composites

Fiber Composites

PrepregsPre Impregnated Prepregs are a ready-made tape composed of fibers in a polymer matrix.

Macromechanical Analysis of LaminaFor determining stresses in lamina.Single lamina is an Orthotropic material.

Macromechanics Of LaminatesA laminate is made of a group of single layers bonded to each other. Each layer can be identified by its location in the laminate, its material, and its angle of orientation with a reference axis.

Classical Lamination TheoryIn this theory we are going to develop the midplane strain and curvature under in-plane loads such as shear and axial forces and bending and twisting moments relationship for the laminates.

Determination of stresses

Analysis of Laminate in Ansys APDL

Manufacturing of Composite MaterialsFour Major Items Needed for manufacturing

Raw MaterialTooling/moldHeatPressureSteps Involved in Composite ManufacturingImpregnation

2. Lay-up

3. Consolidation

4. Solidification

Manufacturing Processes for Thermoset CompositesPrepreg Lay-up Process Wet lay-up processSpray-Up ProcessFilament Winding ProcessPultrusion ProcessResin Transfer Molding Process (RTM)Thank You