Topic 4 Flashcards
(14 cards)
External Forces
Stresses that act on a structure from outside.
Internal Forces
A force that acts on an object from the inside.
Deformation
The change in a structure when a force is acting on it Deformation is an indicator that the materials are stressed.
Dead Load
The weight of a structure upon itself.
Live Load
The force or forces that act in or on a structure but are not part of the structure.
Tension Forces
A force that pulls on a material and stretches it.
Tensile Strength
A measure of how hot or cold something is, measured on a scale.
Compression Forces
A force that compacts or squeezes a material.
Compressive Strength
A measure of the largest compression force that a material can withstand before changing shape or breaking apart.
Shear forces
A force that bends or tears a material by pushing parts of it in opposite directions.
Shear Strength
measures the largest shear force a material can stand before ripping apart.
Torsion forces
A force that acts on a material by twisting its ends in opposite directions.
Torsion Strength
A measure of the largest torsion force that a material can withstand and still be able to return too its original shape.
Bending Force
A combination of push (compression) and pull (tension) forces that results in temporary curving change in the shape of some structures.
