JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech II FUNDAMENTALS OF STRUCTURAL ANALYSIS Previous Question Paper (April - 2018 - R16)
Note: This question paper contains two parts A and B. Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks.
PART- A
Define Principal plane and Stress with a neat sketch.
Answer
A Principal plane is a plane within a stressed body where the shear stress is zero. The normal stresses acting on these planes are called Principal stresses. In a sketch, this is represented by an element where only normal vectors (σ1, σ2) act on the faces, with no tangential components.
What are the various notations used for forces and Stresses?
Answer
Forces are typically denoted by P (axial), V (shear), and M (bending moment). Stresses are denoted by σ (sigma) for normal stress and τ (tau) for shear stress. Double subscript notation is used for stresses (e.g., σxy), where the first subscript indicates the plane normal and the second indicates the direction of the stress.
Define Static Indeterminacy.
Answer
Sign in to view the complete answer paper.
Define Order of Redundancy.
Answer
Sign in to view the complete answer paper.
What is meant by an elastic foundation?
Answer
Sign in to view the complete answer paper.
What are the various types of Bulk Head Segments?
Answer
Sign in to view the complete answer paper.
Define Slenderness ratio.
Answer
Sign in to view the complete answer paper.
What is Rankine’s and Jhonson’s formulae?
Answer
Sign in to view the complete answer paper.
What is theorem of three moments?
Answer
Sign in to view the complete answer paper.
Explain Maxwell’s Reciprocal Theorem.
Answer
Sign in to view the complete answer paper.
PART-B
What is an Airy-stress function in theory of elasticity?
Answer
Sign in to view the complete answer paper.
Prove that the following are the airy-stress functions and examine the stress distribution represented by them: i) Ø = Ax2 + By2 ii) Ø = Ax3
Answer
Sign in to view the complete answer paper.
Explain stress strain relationship for 3D elastic body.
Answer
Sign in to view the complete answer paper.
What are the 2D elasticity equations for plane stress and plane strain?
Answer
Sign in to view the complete answer paper.
What is a beam, frame and truss, explain with neat sketches?
Answer
Sign in to view the complete answer paper.
Differentiate between Statically determinate and indeterminate structures.
Answer
Sign in to view the complete answer paper.
Discuss about application of Claypron’s method for two span continuous beam with one end is fixed.
Answer
Sign in to view the complete answer paper.
Find the deflection at the free end of the propped cantilever beam. Assume elastic deflections with E = 2×105 N/mm2; I = 2.75×108mm4. (Figure 1)
Answer
Sign in to view the complete answer paper.
What do you mean by beams on elastic foundation?
Answer
Sign in to view the complete answer paper.
Derive differential equation for the elastic line of a beam resisting on an elastic foundation.
Answer
Sign in to view the complete answer paper.
Derive Equation of equilibrium for curved beam.
Answer
Sign in to view the complete answer paper.
Briefly explain about the various stress and deflections of a typical curved beam.
Answer
Sign in to view the complete answer paper.
What are the various modes of instability of columns?
Answer
Sign in to view the complete answer paper.
Briefly explain about concept of beam-column.
Answer
Sign in to view the complete answer paper.
Calculate the vertical deflection of the joint B and the horizontal movement of the support D in the truss shown in figure 2. The cross-sectional area of each member is 1800 mm2 and Young’s modulus (E) for the material of the members is 200000 N/mm2.
Answer
Sign in to view the complete answer paper.
Derive Bredt-Batho formula for a single cell thin walled closed section beams subjected to torsion.
Answer
Sign in to view the complete answer paper.
Explain Rayleigh-Ritz method and compare this method with any other two methods determining displacement.
Answer
Sign in to view the complete answer paper.