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Stability and Integrity of Aerospace Structures Course Overview
OVERVIEW
CEA CAPA Partner Institution: Universidad Carlos III de Madrid
Location: Madrid, Spain
Primary Subject Area: Aerospace Engineering
Instruction in: English
Course Code: 15345
Transcript Source: Partner Institution
Course Details: Level 300
Recommended Semester Credits: 3
Contact Hours: 42
Prerequisites: Advanced Mathematics, Aerospace Materials I and II, Introduction to Structural Analysis, Aerospace Structures
DESCRIPTION
1) Stress Analysis of Aircraft Components - Structural Idealization - Wing spar and box beams - Wings - Fuselage
2) Structural Stability - Columns: Elastic buckling of ideal columns. Euler Curve. Inelastic buckling of columns. Euler-Engesser Curve. Real effects on column stability: Imperfections. Local Buckling and Crippling. The Johnson-Euler curve. - Plates: Elastic buckling of plates (compression, bending, shear and combined loading). Plastic effects in plate buckling. Effect of panel curvature. Panel failure: compression and shear panels. Diagonal Tension.
3) Structural Integrity: - Constant and variable amplitude fatigue: SN Curves. Stress concentrations. Cycle counting. Cumulative damage rules. Residual stresses. Design Criteria. - Linear Elastic Fracture Mechanics: Energy release rate and Stress Intensity Factors. Plastic zone size. Fracture Toughness and failure prediction. Thickness effects on Fracture Toughness. The plane strain Fracture Toughness test. - Fatigue Crack Growth: Fatigue crack growth rate curve. Stress ratio effects. Paris Law and other analytical representations. - Damage Tolerance Analysis: Life prediction. Closed form integration for constant Beta and Paris Law. Retardation effects. Design Criteria.
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