# Shared Flashcard Set

## Details

aviation basic science ch 8
n/a
60
Aviation
09/11/2012

Term
 plasticity
Definition
 is the ability of a material to be deformed without rupture or failure
Term
 ductility
Definition
 the of a material refers to its plasticity under a tension or pulling load.
Term
 malleability
Definition
 the rolling of a meta into a thin sheet is possible due to its .
Term
 elastic limit
Definition
 the is the maximum amount of deformation that cam occur with the material still returning to its original shape.
Term
 penetration
Definition
 an operational definition of hardness is the resistance to .
Term
 deformation
Definition
 stress may be defined as an internal force that resists the of a material resulting from an external load.
Term
Definition
 tension stress is the result of a that tends to pull apart or strech
Term
 presses crush
Definition
 compression stress occurs when the load together to or tends to an object.
Term
 shear
Definition
 stress results when two layers of a material are pulled apart.
Term
 three
Definition
 bending stress is the result of a force.
Term
 twisting
Definition
 torsion stress is the result of a force.
Term
 buckling bending
Definition
 material placed under a compression lead will usually fail by or rather than by a compressive failure.
Term
 yield
Definition
 the point at which permanent deformation first occurs is known as the point.
Term
 tensile, bearing, tear out
Definition
 a joint will fail in one of four ways failure of the material, shear failure of the fastner, failure of the material, or of the material.
Term
 thermal, electrical
Definition
 conductivity is the property of a material to conduct heat. conductivity is a measure of the materials ability to have electron flow.
Term
 thermal
Definition
 expansion refers to dimensional changes that occur as materials change temperature.
Term
 solidification, space lattice
Definition
 during the process of , atoms of a metal will arrange themselves i an orderly manner called a .
Term
 allotropic
Definition
 some metals crystallize in one atom arrangement upon further cooling change to another form. This is called an change.
Term
 slip, external
Definition
 within a metallic crystal are planes called planes along which the atoms will move in relation to one another when and load is applied.
Term
 hard, stronger
Definition
 as a metal is cold-worked the material will become and .
Term
 annealing, re-crystallization
Definition
 the effects of cold-working can be removed by a process know as or .
Term
 substitutional, solute, solvent
Definition
 a solid solution alloy occurs when the atom takes the place of a atom in the lattice structure.
Term
 interstitial, solute, solvent
Definition
 a solid solution alloy occurs when the atom wedges into the open space between the atoms.
Term
 type 1, complete
Definition
 a alloy occurs when you have solubility in both the liquid and solid state.
Term
 type 2, complete, limited
Definition
 a eutectic alloy is the result of combining two elements that have solubility in the liquid state and solubility in the solid state.
Term
 structural
Definition
 aluminum is the principal metal for aircraft.
Term
 wrought
Definition
 aluminum is the metal mechanically worked into the desired form by rolling, drawing, and extruding.
Term
 four, alloying element
Definition
 wrought aluminum alloys are designated by a digit system, with the first digit of the number indicating the principal .
Term
 copper, reduces
Definition
 the addition of allows aluminum to be heat-treated to high strengths, but also its corrosion resistance.
Term
 solution heat
Definition
 the T designations are used after alloys capable of being hardened by treatment.
Term
 pure aluminum, corrosion
Definition
 clad aluminum alloys have a thin layer of rolled on each side to mate the material more resistant.
Term
 iron
Definition
 ferrous metals are those whose principal content is .
Term
 corrosion
Definition
 a major disadvantage of the use of magnesium is that it is more subject to than many other metals.
Term
 cure/set/harden
Definition
 thermosetting resins when heat of the correct value is applied.
Term
 softened, be reshaped
Definition
 thermoplastic resins can be by heat and .
Term
 bonds, matrix
Definition
 the resin, which the plies together and provides stiffness, is usually referred to as the .
Term
 woven fabric
Definition
 the most commonly used form of reinforcing material is .
Term
 unidirectional, strength
Definition
 a fabric had most of the fibers running parallel to the warp and thus its lies in the same direction.
Term
 both
Definition
 bi-directional fabric is woven to provide strength in directions.
Term
 dupoint, aramid
Definition
 kevlar is the registered trademark of for an fiber.
Term
 resin, the manufacture
Definition
 preimpregnated fabrics are those that have system impregnated into the fabric by .
Term
 balsa, foam
Definition
 a solid core material uses a low-density material such as wood or expanded materials.
Term
 solid, plywood, laminated
Definition
 three forms of wood are commonly used in aircraft: wood, and wood.
Term
 sitka spruce
Definition
 the standard species of solid wood for aircraft use is .
Term
 across,longitudinal, between
Definition
 checks are longitudinal cracks extending annual rings. shakes are cracks annual rings.
Term
 laminated, same
Definition
 unlike plywood, wood has the grain running in the direction in all layers.
Term
 mahogany, birch
Definition
 aircraft-grade plywood is made of imported african or american veneers laminated to cores of poplar or basswood with waterproof glue.
Term
 1000
Definition
 pure aluminum
Term
 2000
Definition
 copper
Term
 3000
Definition
 manganese
Term
 5000
Definition
 magnesium
Term
 6000
Definition
 magnesium/silicon
Term
 7000
Definition
 zinc
Term
 F
Definition
 as fabricated (no treatment)
Term
 O
Definition
 annealed
Term
 H
Definition
 cold worked or strain hardened
Term
 W
Definition
 unstable condition
Term
 T
Definition
 solution heat-treated
Term
 T3
Definition
 solution heat-treated, cold worked
Term
 T6
Definition
 solution heat-treated and artificially aged
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