Stress at Failure:

Highest ordinate in Stress-Strain diagram

An appreciable elongation or yielding of the material without any corresponding increase of load.

The retarding force acting opposite a body in motion.

It is the displacement of one level relative to the level above or below.

Occurs when the center of mass and rigidity do not coincide.

If the structure is subjected to a cycle of stress and ____ , it causes the beam to have sudden ultimate structure.

Measured by the Richter Scale

Measured by a Seismometer.

Besides the epicenter, it describes the location of the Earthquake.

The composite material exhibits elastic properties in one direction different from that in the perpendicular direction.

The material has the same composition at every point but the elastic may not be the same in all directions.

Liquefaction is best described as:

Rigidity of a structure.

It is the point through which the resultant of the resistance to the applied lateral force acts.

It is the point through which the applied Seismic Force acts.

Flexibility of a structure.

One in which the lateral stiffness is less than 70% of the stiffness of the story above.

It is the distance between the center of rigidity and center of mass.

The material has the ability to absorb energy in the Plastic Range.

The material has the ability to absorb energy in the Elastic Range.

The material has the ability to defuse/deform the Plastic Range without breaking.

The material deforms considerably even with a slight increase in stress.

The material regains its original dimensions/shape when the load is removed.

The material has the same elastic properties in all directions.

Stressing high strength steel wires before concrete hardens.

Stressing high strength steel wires after the concrete has been cast and has attained sufficient strength.

Loss of stress that takes place with the passage of time as concrete is held at a constant strain.

Which structural member has the ratio of its unsupported height to its least lateral dimension or not less than 3 and is used primarily to support Axial Load?

The force which determines whether the body will be in equilibrium or will have a varying state of motion.

PRINCIPLE: That the stress is proportional to the strain within the Elastic Region.

PRINCIPLE: That in the deformation of axially loaded members, the ratio of the lateral to the longitudinal strain is constant.

PRINCIPLE: That within the elastic range, it is the constant of proportionality that defines the linear relationship between stress and strain.

Force generated by a body at rest.

Force generated by a body in motion.

The term of the value beyond which the stress is no longer proportional to the strain.