Find the equation of the elastic curve

Reference no: EM131134430

Question 1: A simply supported beam has a concentrated downward force P at adistance of afrom the left support, as shown in the figurebelow. The flexural rigidity EI is constant. Find the equation of the Elastic Curve by successive integration.

Question 2: Determine the rotations at A and B due to an applied moment MB on the beam, as shown in the figure below. Use the Method of Virtual Work.

Question 3: Find the strain energy stored per unit volume for the materials listed below when they are axially stressed to their respective proportional limits.

Material	Proportional Limit (N/mm²)	Modulus of Elasticity Proportional Limit (N/mm²)
Mild Steel	247	2.06 x 10⁵
Aluminium	412	7.20 x 10⁴
Rubber	2.06	2.06

Question 4: As shown in the figure below, find the downward deflection of the end C caused by the applied force of 2 kN in the structure. Neglect deflection caused by shear. Let E = 7 x 107 kN/m².

Question 5: For the loaded beam, as shown in the figure below, determine the magnitude of the counter weight Q for which the maximum absolute value of the bending moment is as small as possible. If this beam section is 150 mm x 200mm, determine the maximum bending stress. Neglect the weight of the beam.

Question 6: A wooden beam with sectional dimensions of 150 mm x 300 mm, carries the loading as shown in the figure below. Determine the maximum shearing and bending stress for the beam.

Question 7: For the box beam shown in the figure below, determine the maximum intensity w of the distributed loading that can be safely supported if the permissible stresses in bending and shear are 10 N/mm²and 0.75 N/mm² respectively.

Question 8: A beam of rectangular section 450 mm wide and 750 mm deep has a span of 6 metres. The beam is subjected to a uniformly distributed load of 20 kN per metre run (including the self-weight of the beam) over the whole span. The beam is also subjected to a longitudinal axial compressive load of 1500 kN. Find the extreme fibre stresses at the middle sectionspan.

Question 9: A hollow alloy tube 5 metres long with external and internal diameters equal to 40 mm and 25 mm respectively, was found to extend by 6.4 mm under a tensile load of 60 kN. Find the buckling load for the tube when it is used as a column with both ends pinned. Also find the safe compressive load for the tube with a Factor of Safety of 4.

Question 10: A cantilever beamof length l carrying a distributed load varies uniformly from zero at the free end to w per unit run at the fixed end. Find the slope and downward deflection of the free end B.

Reference no: EM131134430

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