What is meant by each of the following terms?
a. Elastic limit
b. Yield point
c. Ultimate strength
d. Stiffness
a. Elastic limit A value of stress at which a material no longer stretches and becomes permanently deformed.
b. Yield point The stress at which the stress-strain relationship is no longer linear, or generally equal to a strain of 2%; above which plastic deformation no longer occurs.
c. Ultimate strength In either compression or tension, it is the maximum stress that a material can withstand without breaking.
d. Stiffness It is a measure of a structure’s resistance to deformation and is not a property of a material. I can be determined by dividing an applied force by the displacement of the structure as induced by that force.
You might also like to view...
What are the main cultural requirements of broadleaf evergreens?
What will be an ideal response?
Good conductors have electrons that are difficult to knock out of their orbits.
Answer the following statement true (T) or false (F)
Technician A says that a on an integral system the final drive is replaced by a hydraulic motor. Technician B says that split systems use separate motors on either side of the equipment to drive the tracks or wheels independently. Who is correct?
A. Technician A B. Technician B C. Both D. Neither
Negative feedback is important because
A) it allows the amplification of larger input signals without clipping B) it reduces the op amps power requirements C) it generates higher open-loop gain D) all of the above