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TERMS - PSAD
| Question | Answer |
|---|---|
| The material composition is the same but its mechanical properties are different in every direction. | Orthotropic material |
| Refers to the tendency of solid materials to return to their original shape after being forces are applied on them. When the forces are removed, the object will return to its initial shape and size. | Elasticity |
| Refers to the stress at which a material begins to deform plastically. The stress point where a material will have appreciable deform when small amount of stress is experienced. | Yeilding |
| The ability of the material to absorb energy in the plastic range. The ability of the material to deform in the plastic without breaking. | Toughness |
| The ability of the material to absorb energy in the elastic range. | Resilience |
| The term which refers to the ability of a material to deform in the plastic range. | Ductility |
| It is the point through which the resultant of the resistance to the applied lateral force acts. | Center of rigidity |
| The point on a structure where the resultant vertical forces acts. The point on a structure where the applied seismic forces acts. | Center of Mass |
| The distance between the center of mass and center of rigidity | Eccentricity |
| It can be measured by a seismometer. | Ground displacement |
| Refers to the flexibility of a structural system. | Inverse stiffness Or, Reciprocal of stiffness |
| The greatest stress that can be applied to an elastic body without causing permanent deformation. | Elastic limit |
| What will develop if the center of mass and the center of rigidity of a structure does not coincide? | Torsional shear stress |
| A building which has floor which is less than 70% as stiff as the floor immediately above it, or less than 80% as stiff as the average stiffness of the three floors above it. | Soft Storey |
| Refers to the lateral displacement of one level relative to the other level above or below. | Storey drift |
| Identify the state of stress in a material describe as follows: stress at Failure | Rupture Strength |
| Highest ordinate in stress-strain diagram | Ultimate strength |
| A appreciable elongation or yielding of the material without any corresponding increase of load. | Yield Strength |
| It refers to flexibility of a structure | Reciprocal of stiffness |
| What do you call the force which determines whether the body will be in equilibrium or will have a varying state of motion? | Resultant |
Created by:
ENGR.BMO
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