A free bar of length/ is uniformly heated from 0 C to a temperature t C, is the coefficient of linear expansion and E the modulus of elasticity. The stress in the bar is

A free bar of length/ is uniformly heated from 0 C to a temperature t

1.	A free bar of length/ is uniformly heated from 0 C to a temperature t C, is the coefficient of linear expansion and E the modulus of elasticity. The stress in the bar is
A.	tE
B.	tE/2
C.	Zero
D.	None of these
Answer» D. None of these

Discussion

No Comment Found

Related MCQs

If the two principal strains at a point are 1000 x 10-6 and 600 10-6, then the maximum shear strain is
Two solid circular shafts of radii R1 and R2 are subjected to same torque. The maximum shear stresses developed in the two shafts are 1 and 2. If R1/R2 = 2, then 2/ 1 is ______.
A hollow shaft (d0 = 2di where d0 and di are the outer and inner diameters respectively) needs to transmit 20 kW power at 3000 RPM. If the maximum permissible shear stress is 30 MPa, d0 is
In terms of Poisson's ratio ( ) the ratio of Young's modulus (E) to Shear modulus (G) of elastic materials is
If the Young's modulus and Poisson's ratio of the container material' are 100 GPa and 0.3, respectively, the axial strain in the cylinder wall at mid-depth is
A 200 100 50 mm steel block is subjected to a hydro static pressure of 15 MPa. The Young's modulus and Poisson's ratio of the material are 200 GPa and 0.3 respectively. The change in the volume of the block in mm3 is
A horizontal bar, fixed at one end (x = 0), has a length of 1 m, and cross-sectional area of 100 mm2. Its elastic modulus varies along its length as given by E(x) = 100e x GPa, where x is the length coordinate (in m) along the axis of the bar. An axial tensile load of 10 kN is applied at the free end (x = 1). The axial displacement of the free end is _____ mm.
The state of stress at a point is x = y = z = xz = zx = yx = zy= 0 and xy = yx = 50 MPa. The maximum normal stress (in MPa) at that point is ______.
In a plane stress condition, the components of stress at a point are x = 20 MPa, y = 80 MPa and xy = 40 MPa. The maximum shear stress (in MPa) at the point is
The principal stresses at a point in a critical - section of a machine component are 1 = 60 MPa, 2 = 5 MPa and 3 = 40 MPa. For the material of the component, the tensile yield strength is y = 200 MPa. According to the maximum shear stress theory, the factor of safety is

A free bar of length/ is uniformly heated from 0 C to a temperature t C, is the coefficient of linear expansion and E the modulus of elasticity. The stress in the bar is

Discussion

No Comment Found

Related MCQs

Reply to Comment