What are the failures occur in structural components of aircraft in different flight conditions?
[3 marks]Explain the role of bulkheads and longerons in detail.
[4 marks]Explain Flight Envelope (V-n diagram) with the help of neat sketch.
[7 marks]Define : Plane stress,plane strain
[3 marks]Explain the loads acting on an aircraft for different flight conditions with neat sketches.
[4 marks]Define Neutral Axis; Derive the equations for direct bending stress distribution. Also sketch the direct bending stress distribution of an I- section.
[7 marks]Derive equation of equilibrium for 3D elastic body.
[7 marks]Enlist the different ways of making the section free from torsion.
[3 marks]Derive compatibility equation.
[4 marks]Calculate the value of reactions for the continuous beam shown in below Figure using Stiffness System Approach.
[7 marks]State the difference between Symmetrical Bending and Unsymmetrical Bending.
[3 marks]Explain the Saint Venant’s Principle for 2D beam problems.
[4 marks]Determine the value of the redundants for the beam shown in the below Figure using Flexibility Method. Consider redundants in the form of moments.1
[7 marks]Define Flexibility and state the characteristics of Flexibility Matrix.
[3 marks]Write the basic equations of equilibrium, compatibility and stress- strain relations for plane stress condition in polar coordinate system.
[4 marks]An Indian Standard I-section ISMB 300 is shown in Figure- 3. The properties of the section are as below: Ixx = 7719 cm4, Iyy = 450 cm4. The plane of loading is inclined at 30 to the Y-axis. Find moment ‘M’ if the maximum bending stress induced is 120 N/mm2.
[7 marks]Explain torsion of multi cell open section beams.
[3 marks]Explain Framed Structures and Continuum Structures with the help of neat sketch.
[4 marks]The cross section of a beam has the dimensions shown in below fig. If the beam is subjected to a negative bending moment of 100kNm applied in a vertical plane, determine the distribution of direct stress through the depth of the section.
[7 marks]Define the terms: Shear Centre, Shear Flow
[3 marks]Derive the equation of torque for a bar from Prandtl Stress Function
[4 marks]Determine the shear flow of the section shown in Figure Explain each step.2
[7 marks]Explain the role of skin and ribs in with figure.
[3 marks]Explain displacement associated with Bredt-Batho Shear flow for closed sections.
[4 marks]Derive the equation for computation of shear centre for a channel section.
[7 marks]