Principal plane is one which has
For drawing Mohr’s circle, the required stresses are
Mohr’s circle can be used to determine, on an inclined surface
The extremities of any diameter on Mohr’s circle represent
The shear stress along the principal plane subjected to maximum principal stress is
In Mohr’s circle, the center of circle from yaxis is taken as
Maximum shearing stress planes are inclined at the following angle to the principal planes
(!) 45°
When a body is subjected to a direct tensile stress (σ) in the one plane. Then tangential or shear stress on oblique section of the body inclined at angle θ to the normal of the section is
When a square or rectangular block subjected to a shear load is in equilibrium, the shear stress in one plane is always associated with a complementary shear stress (of equal value) in the other plane at __________ to it?
If an element of a specimen of brittle material is subjected to shear stress, the crack propagation if occurs, will be inclined to the sides of the element at
The maximum shear stress from a Mohr’s circle is given by
Principal plane is one which carries
For which one of the following twodimensional states of stress will be Mohr’s stress circle degenerate into a point?
Radius of the Mohr's circle
=
∴ τ_{xy} = 0 and σ_{x} = σ_{y} = σ
Biaxial stress system is correctly shown in
Complementary shear stresses are balanced Normal stress is balanced in x and ydirection.
If the principal stresses at a point in a strained body are σ_{x} and σ_{y} (σ_{x} > σ_{y} ), then the resultant stress on a plane carrying the maximum shear stress is equal to
σ_{r}^{2} =
=
=
A solid cube is subjected to identical normal forces on all the faces. The ratio of volumetric strain to linear strain in any of the three axes is
For the given stress condition σ_{x} = 2 N ⁄ mm^{2}, σy = 0, τ_{xy} = 0, the correct Mohr’s circle is
If σ_{1} = 600N/mm^{2} (tensile) and σ_{2} = 400 N/mm^{2} (Compressive), the maximum shear stress is
τ_{max} =
= 500 N/mm^{2}
The principal stress induced at a point in a machine element made of steel (S_{yt} = 460 MPa) are as follows σ_{1} = 210 MPa and σ_{2} = 145 MPa, the factor of safety according to Hencky’s theory of failure is
(210)2 + (145)2 − 210 × 145 ≤
N = 2.47
A bolt is subjected to an axial load of 10 kN with a transverse shear load 4 kN and crosssection area of bolt is 250 mm2 and yield strength of bolt material is 240 MPa the factor of safety according to Guest’s theory is
τ = = 16 MPa
N = 4.685
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