COMPOSITE MATERIALS
Academic year and teacher
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- Versione italiana
- Academic year
- 2022/2023
- Teacher
- FRANCESCO MOLLICA
- Credits
- 6
- Didactic period
- Secondo Semestre
- SSD
- ING-IND/22
Training objectives
- The course is meant to give the basics of the mechanics of composite materials and their manufacturing technologies
Prerequisites
- None
Course programme
- Elastic materials, linear elastics e
linear hyperelastic. Stiffness matrix for an anisotropic linear hyperelastic material. Orthotropic material, transversely isotropic material. Unidirectional foil, plane stress, compliance matrix and elastic constants of a unidirectional foil in
function of the stress angle. Laminates, hypothesis of the theory of lamination
classical, displacement field of a laminate. Stress characteristics e
deformation characteristics of a laminate. Stiffness matrix of a laminate.
Couplings of shear, bending torsion and bending traction. Notable laminates:
symmetric, balanced, antisymmetric, near isotropic, angle ply, cross ply.
Calculation of the sheet-by-sheet stresses of a laminate loaded in bending.
Hygrothermal behavior, equivalent load. General equilibrium equations of a
laminate. Failure criteria: First Ply Failure, Ultimate Laminate Failure, Delamination.
Forming technologies: manual impregnation, prepreg lamination and autoclave curing, winding, resin transfer molding, pultrusion.
Optional exercise: design and construction of a carbon component Didactic methods
- Class lectures and one optional exercise
Learning assessment procedures
- Written exam consisting of 3 questions, one of which is an exercise
Reference texts
- Gibson - Principles of Composite Materials Mechanics
