GATE AE concept:stress PYQs & Answers — Page 4

Questions 31–36 of 36. Imported answers require independent review unless marked reviewed.

Topic practice 36 questionsPage 4 of 4

A cantilever beam having a rectangular cross-section of width 60 mm and depth 100 mm, is made of aluminum alloy. The material mechanical properties are: Young’s modulus, E = 73 GPa and ultimate stress,

= 480 MPa. Assuming a factor of safety of 4, the maximum bending moment (in kN-m) that can be applied on the beam is ______ (accurate to one decimal place).

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The components of stress in a body under plane stress condition, in the absence of body forces, is given by:

;

and

. The coefficient, A, such that the body is under equilibrium is ____ (accurate to one decimal place).

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Which of the following statements about the neutral axis of a beam with unsymmetrical cross section is true:

Your answerChoose one option.

The product of second moment of area about the neutral axis is always zero.

The normal stress along the neutral axis is always zero.

The shear stress along the neutral axis is always zero.

The product of second moment of area about the neutral axis and the normal stress about the neutral axis are always zero.

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A batch of aluminium alloy yields in uniaxial tension at the stress of 330 MN/m

. If this material is subjected to the following state of stress:

MN/m

and

. The value of x that would result in yielding according to the Von Mises failure criterion is __________ (in three decimal places).

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For the state of plane stress shown in the figure, the minimum principal stress is

. The normal stress

is equal to ________ (round to nearest integer).

Diagram for Aerospace Engineering question 52

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The maximum normal stress in MN/m² for the thin walled beam of square cross section of outer dimension 120 mm x 120 mm and wall thickness 1 mm under the action of moment

Nm as shown in the figure is ________ (in three decimal places).

Diagram for Aerospace Engineering question 53

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GATE AE concept:stress PYQs

Question 51

Question 52

Question 20

Question 41

Question 52

Question 53