Term
|
Definition
| is the ability of a material to be deformed without rupture or failure |
|
|
Term
|
Definition
| the of a material refers to its plasticity under a tension or pulling load. |
|
|
Term
|
Definition
| the rolling of a meta into a thin sheet is possible due to its . |
|
|
Term
|
Definition
| the is the maximum amount of deformation that cam occur with the material still returning to its original shape. |
|
|
Term
|
Definition
| an operational definition of hardness is the resistance to . |
|
|
Term
|
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
|
Definition
| compression stress occurs when the load together to or tends to an object. |
|
|
Term
|
Definition
| stress results when two layers of a material are pulled apart. |
|
|
Term
|
Definition
| bending stress is the result of a force. |
|
|
Term
|
Definition
| torsion stress is the result of a force. |
|
|
Term
|
Definition
| material placed under a compression lead will usually fail by or rather than by a compressive failure. |
|
|
Term
|
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
|
Definition
| conductivity is the property of a material to conduct heat. conductivity is a measure of the materials ability to have electron flow. |
|
|
Term
|
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
|
Definition
| some metals crystallize in one atom arrangement upon further cooling change to another form. This is called an change. |
|
|
Term
|
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
|
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
|
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
|
Definition
| aluminum is the principal metal for aircraft. |
|
|
Term
|
Definition
| aluminum is the metal mechanically worked into the desired form by rolling, drawing, and extruding. |
|
|
Term
|
Definition
| wrought aluminum alloys are designated by a digit system, with the first digit of the number indicating the principal . |
|
|
Term
|
Definition
| the addition of allows aluminum to be heat-treated to high strengths, but also its corrosion resistance. |
|
|
Term
|
Definition
| the T designations are used after alloys capable of being hardened by treatment. |
|
|
Term
|
Definition
| clad aluminum alloys have a thin layer of rolled on each side to mate the material more resistant. |
|
|
Term
|
Definition
| ferrous metals are those whose principal content is . |
|
|
Term
|
Definition
| a major disadvantage of the use of magnesium is that it is more subject to than many other metals. |
|
|
Term
|
Definition
| thermosetting resins when heat of the correct value is applied. |
|
|
Term
|
Definition
| thermoplastic resins can be by heat and . |
|
|
Term
|
Definition
| the resin, which the plies together and provides stiffness, is usually referred to as the . |
|
|
Term
|
Definition
| the most commonly used form of reinforcing material is . |
|
|
Term
|
Definition
| a fabric had most of the fibers running parallel to the warp and thus its lies in the same direction. |
|
|
Term
|
Definition
| bi-directional fabric is woven to provide strength in directions. |
|
|
Term
|
Definition
| kevlar is the registered trademark of for an fiber. |
|
|
Term
|
Definition
| preimpregnated fabrics are those that have system impregnated into the fabric by . |
|
|
Term
|
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
|
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
|
Definition
| unlike plywood, wood has the grain running in the direction in all layers. |
|
|
Term
|
Definition
| aircraft-grade plywood is made of imported african or american veneers laminated to cores of poplar or basswood with waterproof glue. |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| as fabricated (no treatment) |
|
|
Term
|
Definition
|
|
Term
|
Definition
| cold worked or strain hardened |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| solution heat-treated, cold worked |
|
|
Term
|
Definition
| solution heat-treated and artificially aged |
|
|
