Q2). A 20m steel tape supported at both ends was used to measure horizontal distance of CD at a temperature of 35 °C and 60 N tension force measured distance was 350m. Under the standard conditions was found that the tape 19.95m length. Find the actual horizontal distance between CD if: T3 Standard temperature 25 °C L Coefficient of thermal expansion of steel tape = 11.6x106/°C Po Standard tension = 100N Modulus of elasticity (E)=210 kN/mm² Cross-sectional area of the tape = 2 mm² The weight of this tape between supports 8 N

Q: The deformation on the given plate is shown with dotted lines. Average normal unit strain in the BD…

A: Given above diagram we have to find average shear strain along BD and shear strain at B

Q: A solid 0.125 in. diameter steel [E = 30,000 ksi; \alpha = 6.5 \times 10-6/\deg F] wire is stretched…

A:

Q: A flat bar of cross section 15 mm by 70 mm elongates 2.59 mm in a length of 1.3 m as the result of…

A: Axial stress is the ratio of load and the areaσ=PAσ=230,000N15×70 mm2σ=219Mpa

Q: Example 2.14 A plate 2 m x 2 m x 20 mm is subjected to stress o, 100 MPa (tensile) and o, = 50 MPa…

A:

Q: given material has a modulus of elasticity E=250 GPa and shear modulus G= 83.5 GPa, what is the…

A:

Q: The shown circular bar is fixed to the left wall. It has a diameter of 0.5 in and length of 60 in at…

A: for having stress free of right wall, bar should be elongated maximum equal to the gap.

Q: The  slenderness  ratio   Lc/r (previously known as KL/r) at  which  the  column buckling  mode…

A:

Q: The following force-extension graph is for a cylindrical metal sample with cross section area of…

A: Given data:- The cross-sectional area,A=3.6 mm2 The length,L=240mm

Temperature Difference and Heat Transfer

Whenever there is a flow of heat flux resulting from a temperature gradient within the material or between two materials, there is heat transfer. Heat transfer primarily arises due to temperature differences between two bodies or within bodies. The term temperature gradient denotes temperature differences or variation of temperature due to change in some quantity. The fundamental use of the concept of temperature is found in the zeroth law of thermodynamics.