Loads on aircraft — main types?
Ground and air loads.
Material failure modes — key?
Fracture, fatigue, corrosion.
Elasticity — definition?
Material's ability to return to original shape after deformation.
Elasticity — definition?
Material returns to original shape after load removal.
Ductility — role?
Allows plastic deformation before fracture, warning of failure.
Strength — maximum?
Maximum stress a material can withstand without failure.
Toughness — capacity?
Absorbing energy without fracturing; balance of strength and ductility.
Brittleness — characteristic?
Fractures with little plastic deformation, sudden failure.
Fatigue — damage?
Weakening due to cyclic loading, leading to failure.
Material selection factors?
Strength-to-weight, stiffness, toughness, corrosion resistance, fatigue life, cost.
Answer 9 questions on Aerospace Structural Materials and Design.
1. What does the property of elasticity in materials mean?
2. What is the primary function of structural elements such as fuselage, wings, and spars in an aircraft?
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