• Increase font size
  • Default font size
  • Decrease font size
Home Courses

Courses

MECHANICS (STATICS)
Introduction to mechanics, basic concepts and fundamental principles. Mathematical tools. Material particle statics. Rigid body statics. The virtual work principle. Rigid body systems, trusses, frames and machines. Loading of beams and cables. Friction problems. Mass center of solids


MECHANICS OF COMPOSITE MATERIALS
Macroscopic mechanical behavior of fibrous composite uni−axial ply (stress-strain relations for anisotropic linear elastic media, engineering elastic constants for orthotropic media, macroscopic failure criteria for orthotropic materials, failure of fibrous composite uni−axial plies, investigation of failure loci)
Macromechanical behavior of laminated plate (general thin−wall plate theory, equations of equilibrium, constitutional equations for laminated plate, symmetric laminated plates, engineering elastic constants of laminated plate, pseudoisotropic laminated plates, sandwich structural components, beams of thin−wall cross−section, hygrothermal strain of laminated plates, mechanical behavior of asymmetric laminated plates under hygrothermal loading, analysis of laminated plate hygrothermal behavior under inhomogeneous temperature distribution)


EXPERIMENTAL METHODS IN COMPOSITE MATERIALS
Experimental thermomechanical properties characterization of fibrous composite material orthotropic ply (anisotropic elasticity theory, engineering elastic constants, Influence of shear coupling coefficients, SXS, SYS, on strain behavior of off−axis orthotropic plies, principal stress and strain systems in orthotropic materials, shear strain measurement via strain−gauges, experimental measurement errors in testing of fibrous composites, measurement of fibre volume fraction, testing for mechanical properties characterization in the ply level in accordance with ISO standards, hygrothermal behavior, measurement of thermal expansion and hygroscopic coefficients). Fatigue behavior of fibrous composites (failure mechanisms, degradation of mechanical strength/stiffness properties, testing for fatigue behavior characterization in accordance with standards, S−N curves, constant life diagrams, generalized Goodman law, statistical assessment of experimental fatigue data, damage accumulation laws, life prediction models)


NON DESTRUCTIVE TESTING AND INSPECTION
Introduction to NDI (non destructive inspection) (methodologies of structural design, safe life, fail safe, design in accordance with linear fracture mechanics principles, LEFM, demonstration of catastrophic failures of mechanical and aeronautical structures, NDI reliability, inspection of NDT methods)
Visual inspection (microscopes, surface replication, endoscopes, liquid penetrants, magnetic particles)
Electrical methods (Eddy current)
Acoustic and ultrasonic methods (wave propagation in infinite and finite elastic solid media, elastic wave mode conversion on free boundaries and interfaces, critical angles of propagation, ultrasonic testing, equipment, piezoelectric transducers, attenuation, scattering, dispersion, ultrasonic test set−ups, evaluation of crack and various flaws, acoustic emission (AE), AE signal analysis, acousto−ultrasonics (AU))


DESIGN WITH COMPOSITE MATERIALS
Stress analysis in laminated components (expression of laminated plate constitutional equations in a parallel co−ordinate system, stiffness calculation of a sandwich reinforced plate, comparison to the stiffness of a plate reinforced with Al alloy or CFRP, 3D elastic constants of a laminated structure, apparent transverse Poisson ratios and thermal expansion coefficients, bending of laminated plates under loading transverse to the mid−plane, bending of simply−supported on−axis orthotropic plates, elastic stability of laminated plates, free vibration of simply−supported rectangular plate). Failure of laminated plates (strength coefficient, FPF loads, plate failure due to hygrothermal loading, failure of symmetric laminated plated under in−plane loading, FPF failure loci, ultimate failure of laminate structure LPF, degradation of mechanical properties−distributed failure, design criteria, marginal strength, general principles of composite structure reliability ISO 2394). Stacking sequence design of laminated structure (empirical methods, use of FPF and LPF failure loci, “principal stress“ method). Fatigue design of laminated structural components (experimental fatigue behavior material characterization, determination of stress sequences, load cycle counting, constant life diagrams, fatigue strength criterion, damage accumulation law, life prediction under complex stress state and spectral loading). Design of connectors from composite materials (connection geometry, mechanical and adhesive bonding, experimental bonding strength, stress analysis methods in bolt connections of composite materials, screws and adhesions, bond design)
Application example: Design methodology horizontal−axis wind turbine rotor blades