objective questions for PSAD
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| show | Strain energy
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| show | Modulus of toughness
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| represents the largest amount of internal strain energy per unit volume the material can absorb without causing any permanent damage to the material (ability to absorb energy in the elastic range) | show 🗑
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| show | Elasticity
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| refers to the ability of a material to deform in the plastic range without breaking | show 🗑
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| show | Stiffness
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| Inverse of stiffness | show 🗑
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| show | Toughness
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| show | Hardness
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| Any material that can be subjected to large strains before it fractures | show 🗑
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| Materials that exhibit little or no yielding before failure are referred to as _______ ________. | show 🗑
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| has the same physical and mechanical properties throughout its volume or material has the same composition at any point | show 🗑
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| has same physical and mechanical properties in all directions | show 🗑
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| has material properties at a particular point, which differ along three mutually orthogonal axes | show 🗑
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| show | Prismatic
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| show | Creep
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| When a material is subjected to repeated cycles of stress or strain, it causes its structure to break down, ultimately leading to fracture. This behavior is called _______. | show 🗑
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| lateral deflection that occurs when long slender members are subjected to an axial compressive force | show 🗑
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| show | yielding,
plastic deformation
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| When yielding has ended, an increase in load can be supported by the specimen, until it reaches a maximum stress referred to as the ultimate stress | show 🗑
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| show | Necking
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| It is the space between two adjacent floors | show 🗑
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| show | Diaphragms
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| show | Shear wall
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| stiffened wall that is capable of transferring lateral forces from floors and roofs to the foundation | show 🗑
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| show | Center of gravity
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| show | Center of rigidity
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| It is the point through which the resultant of the resistance to the applied lateral force acts. | show 🗑
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| point through which the resultant of the masses of a system acts | show 🗑
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| It is the point through which the applied lateral force acts. | show 🗑
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| The point through which the resultant of the restoring forces of a system acts | show 🗑
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| show | Eccentricity
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| show | Design seismic base shear
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| show | Story drift
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| show | Story displacement
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| Discontinuities in a lateral force path | show 🗑
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| occurs when the structure’s center of mass does not coincide with its center of rigidity | show 🗑
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| It occurs when a building period coincides with the earthquake period | show 🗑
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| time period of undamped free vibration of a structure | show 🗑
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| show | Damping
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| show | Damping
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| show | Epicenter
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| show | Focus
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| the focus is also called the | show 🗑
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| show | Ductility
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| show | Liquefaction
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| show | Liquefaction
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| show | Intensity
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| show | Magnitude
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| instruments used to record the motion of the ground during an earthquake | show 🗑
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| It is one in which the lateral stiffness is less than 70 percent of that in the storey above or less than 80 percent of the average lateral stiffness of the three storeys above | show 🗑
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| show | Weak Storey
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