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C192011 Pages:3

PART (^

Answer any four full questions, each carries 10marks.
A cantilever of uniform section has a length ‘I’ and carries a point load W at the
free end. Find the deflection at a point “1/3? from the fixed end.
State the significance of stress transformation equations
A simply supported beam of length 6 m carries a uniformly distributed load of
10 kN/m from 1 m and ending at 4 m from left end. Using Macaulay’s method
calculate i) Slope at left end.
ii) Deflection at mid span.
iii) Maximum deflection.
Take E=200 Gpa and Moment of inertia 1=450x10° mm‘
The normal stresses at a point in an elastic material are 100 MPa (tensile) and
60 MPa (compressive) respectively at right angles to each other with shearing
stress of 50 MPa. Determine the i) Principal stresses and the position of

principal planes ii) Maximum shear stress and its plane.
The two-dimensional state of stress in a body is o-| ८) ‏د‎ in Mpa. Using

Mohr’s circle method, determine the principal stresses, location of principal
planes, maximum shear stress and its planes.

Define two-dimensional state of stress.

Write short note on strain rosette.

A shaft at a certain cross section of 120 mm diameter is subjected to a bending
moment of 5 kN-m and twisting moment 10 kN-m. Find the principal stresses
and maximum shear stresses.

Define the term equivalent length and slendemess ratio of column.

A 4 m long column with both ends firmly fixed supports an axial load of 500
KN. The inside diameter of the column is 0.5 times the outside diameter.
Determine the inside and outside diameter of column. Assume factor of safety

to be 5, crushing stress 560 MPa and Rankine constant 1/1600.

‎RR‏ بد یبد

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