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1.
It is the value of stress on the stress-strain curve at which there is a significant increase in strain with little or no increase in stress
2.
Internal force that acts against distortion
3.
A steel rod 2.5 m long is secured between two walls. If the load on the rod is zero at 20 degree Celsius, compute the stress when the temperature drops to -20 degrees Celsius. The cross-sectional are if the rod is 1200 sq. mm, coefficient of linear expansion = 11.7 um/(m-deg.C), and E = 200 GPa. Assume that the walls are rigid.
4.
Kinematic viscosity in SI derived unit is described as:
5.
The proportional limit is the value of stress on the stress-strain diagram curve at which the curve first deviates from a straight line.
6.
It is the measure of the total resistance to sliding
7.
The property of the body which measures its resistance to changes in motion.
8.
This implies the resistance to shock or difficulty of breaking and express the work per unit volume required to fracture a materia
9.
A solid steel shaft 5 m long is stressed to 80 MPa when twisted through 4 degrees. Using G = 83 GPa, compute the shaft diameter.
10.
These are components of the total resistance to sliding the portion to one side of the exploratory section past the other
11.
The ratio of the uniform triaxial stresses, to the change in volume at equal stress in all directions is:
12.
The ratio of shearing stress to shearing strain is called
13.
Find the elongation in a 3m long steel bar by subjecting it to 50 Mpa stress. E=200 Gpa
14.
It is a measure of pulling and pushing force
15.
It is the ability of a material to be elongated
16.
What is the minimum diameter of a solid steel shaft that will not twist through more than 3 degrees in a 6 m length when subjected to a torque of 12 kN.m? Use G=83GPa.
17.
It is the value of stress on the stress-strain curve at which the material has deformed plastically; that is, it will no longer return to its original size and shape after removing the load
18.
A brittle material is one that fails suddenly under load with little or no plastic deformation. A metal that exhibits a percent elongation ____ 5.0% is considered to be brittle
19.
It is the indication of the resistance of a material to indentation by a penetrator
20.
This component measures the pulling (or pushing) action perpendicular to the section
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