Aerospace Structures
Jeeva Peter
IIAEM, Dept. of Aerospace
,
, MODULE-2
• 2.1. Beams-bending and extensions; symmetrical and unsymmetrical
cross sections .Analysis of thin walled beams, typical of aircraft
structures.
• 2.2. Shear of beams-open and closed sections
• 2.3. Torsional shear stresses- closed sections
• Ref:
, 2.1. Beams-bending and extensions; symmetrica
and unsymmetrical cross sections
• 2.1.1. Symmetrical Bending
• Beams having singly or doubly
symmetrical cross-sections. (Fig 2.1)
• A length of beam subjected to a pure sagging •
moment, M applied in a vertical plane. (Fig 2.2)
•
Fig 2.1
•
- direct stress due to bending varies from
compression in the upper fibers to tension in the
lower.
-Plane containing fibres that do not change in
length is called the neutral plane.
-Line of intersection of the neutral plane and any
cross section is termed the neutral axis.
Fig 2.2
Jeeva Peter
IIAEM, Dept. of Aerospace
,
, MODULE-2
• 2.1. Beams-bending and extensions; symmetrical and unsymmetrical
cross sections .Analysis of thin walled beams, typical of aircraft
structures.
• 2.2. Shear of beams-open and closed sections
• 2.3. Torsional shear stresses- closed sections
• Ref:
, 2.1. Beams-bending and extensions; symmetrica
and unsymmetrical cross sections
• 2.1.1. Symmetrical Bending
• Beams having singly or doubly
symmetrical cross-sections. (Fig 2.1)
• A length of beam subjected to a pure sagging •
moment, M applied in a vertical plane. (Fig 2.2)
•
Fig 2.1
•
- direct stress due to bending varies from
compression in the upper fibers to tension in the
lower.
-Plane containing fibres that do not change in
length is called the neutral plane.
-Line of intersection of the neutral plane and any
cross section is termed the neutral axis.
Fig 2.2
