GATE Past Year Questions: Principal Stress & Strain Notes | EduRev

Strength of Materials (SOM)

Mechanical Engineering : GATE Past Year Questions: Principal Stress & Strain Notes | EduRev

The document GATE Past Year Questions: Principal Stress & Strain Notes | EduRev is a part of the Mechanical Engineering Course Strength of Materials (SOM).
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Try yourself:An elastic body is subjected to a tensile stress X in a particular direction and a compressive stress Y in its perpendicular direction. X and Y are unequal in magnitude. On the plane of maximum shear stress in the body there will be

[1989]

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Try yourself:The three-dimensional state of stress at a point is given by
GATE Past Year Questions: Principal Stress & Strain Notes | EduRev
The shear stress on the x-face in y-direction at the same point is then equal to

[1990]

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Try yourself:A large uniform plate containing a rivet hole is subjected to uniform uniaxial tension of 95 MPa. The maximum stress in the plate is
GATE Past Year Questions: Principal Stress & Strain Notes | EduRev

[1992]

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Try yourself:At a point in a stressed body the state of stress on two planes 45° apart is as shown below. Determine the two principal stresses in MPa.
GATE Past Year Questions: Principal Stress & Strain Notes | EduRev

[1993]

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Try yourself:A shaft subjected to torsion experiences a pure shear stress x on the surface. The maximum principal stress on the surface which is at 45° to the axis will have a value

[2003]

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Try yourself:If the principal stresses in a plane stress problem are σ1 = 100 MPa, σ2 = 40 MPa, the magnitude of the maximum shear stress (in MPa) will be

[2009]

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Try yourself:The state of plane-stress at a point is given by σx =200 MPa, σy =100 MPa and τxy = 100 MPa. The maximum shear stress

[2010]

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Try yourself:In a plane stress condition, the components of stress at a point are σx = 20 MPa, σy = 80 MPa and σxy = 40 MPa. The maximum shear stress (in MPa) at the point is

[2015]

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Try yourself:The state of stress at a point on an element is shown in figure (a). The same state of stress is shown in another coordinate system in figure (b).
GATE Past Year Questions: Principal Stress & Strain Notes | EduRev
The components (txx, tyy, txy,) are given by

[2016]

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Try yourself:The State of stress at a point, for a body in place stress, is shown in the figure below. If the minimum principal stress is 10 kPa, then the normal stress σs (in kPa) is
GATE Past Year Questions: Principal Stress & Strain Notes | EduRev

[2018]

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Try yourself:If the two principal strains at a point are 1000 x 10-6 and –600 × 10–6, then the maximum shear strain is

[1996]

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Try yourself:According to Von-Mises' distortion energy theory, the distortion energy under three dimensional stress state is represented by

[2006]

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Try yourself:Match the following criteria of material failure, under biaxial stresses σ1 and σ2 and yield stress σy, with their corresponding graphic representations:
GATE Past Year Questions: Principal Stress & Strain Notes | EduRev

[2011]

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Try yourself:The homogenous state of stress for a metal part undergoing plastic deformation is
GATE Past Year Questions: Principal Stress & Strain Notes | EduRev
Where the stress component values are in MPa. Using Von Mises yield criterion, the value of estimated shear yield stress, in MPa is

[2012]

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Try yourself:The principal stresses at a point inside a solid object are σ1 = 100 MPa, σ2 = 100 MPa and σ3 = 0 MPa. The yield strength of the material is 200 MPa. The factor of safety calculated using Tresca (maximum shear stress) theory is nT and the factor of safety calculated using Von Mises(maximum distortional energy) theory is nv. Which one of the following relations is TRUE?

[2016]

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Try yourself:The principal stresses at a point in a critical -section of a machine component are σ1 = 60 MPa, σ2 = 5 MPa and σ3 = - 40 MPa. For the material of the component, the tensile yield strength is σy = 200 MPa. According to the  maximum shear stress theory, the factor of safety is

[2016]

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