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2106 Flashcards

1
Q

The term composite is used to describe two or more
materials that are combined to form a structure that is
much stronger than the individual components.

A

Composite Structure

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2
Q

The simplest composite is composed of two elements:

A

Matrix and Reinforcing Materials

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3
Q

is generally in a liquid form that
serves as a bonding substance.

A

Matrix

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4
Q

is a solid form that provide the primary structural strength to the composite structure when combined in
a matrix

A

Reinforcing Materials

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5
Q

This manual developed by the aircraft Manufacturers that includes information prepared for the AMT or technicians who performs work on units, components and system while they are installed on the airplane.

A

AIRCRAFT MAINTENANCE MANUAL.

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6
Q

a chemical additives that quicken cure, or chemical reactions.

A

Accelerator

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7
Q

A material that are mixed into a two –part resin system to improve the properties of the systems.

A

Additives

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8
Q

A substance that is applied to two mating surfaces to bond them together by surface attachments.

A

Adhesive

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9
Q

Fibrous materials embedded in a resin matrix. The term
ADVANCED applied those materials, which have superior strength and stiffness and the process in which they are manufactures

A

Advance Composite

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10
Q

The weight of the fiber reinforcement per unit area of tape of fabric.

A

Area Weight

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11
Q

The term composite is define in FAA AC 4-214. A combination of two or more materials (reinforcing elements, fillers, and composite matrix binder), differing in form or composite on on a macro-scale.

A

Composite

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11
Q

A manual developed BY THE COMPONENT manufacturer and frequently adopted by the airframe manufacturer. A CMM is most frequently not approved by the FAA. Blanket approval comes through the AMM and SRM.

A

Component Maintenance Manual

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12
Q

The resistance to resist the crushing force.

A

Compressive Strength

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13
Q

An impurity of foreign substance present in the materials or environment that affects one or more property es of the materials, particularly adhesion.

A

Contaminant

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14
Q

A compression damage of the core.

A

Core Crush

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15
Q

to change the physical properties of the material by chemical reaction, by the application of catalyst , heat and pressure , alone or in combination.

A

Cure

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16
Q

Individual fibers woven together to produce cloth.

A

Fabric

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17
Q

Single strands of materials used reinforcement because of its high strength and stiffness

A

Fiber

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18
Q

A require document which is produced by the manufacturer. It has the parts and their part numbers exploded for identification.

A

ILLUSTRATED PARTS CATALOG.

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19
Q

One Fabric resin layer that is bonded to adjacent layers in the curing process.

A

Laminate

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20
Q

Persons performing a repair or alteration under parts 121 and 135, or repair stations certificated under part 145. As used in this AC, this term includes Maintenance Repair Organization(MRO), certificated repair stations (CRS), and operators’ maintenance facilities.

A

Maintenance Organization

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21
Q

The alignment of the fibers to the baseline set by the manufacturer for the perpendicular component

A

Orientation

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22
Q

The length of time that the resin, mixed with catalyst will be in a workable state.

A

Pot Life

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23
Q

a manual which developed by the manufacturer to cover all items not listed as minor, maintenance , including instructions for structural repair, major component removal, installation and adjustment set up. Etch.

A

Structural Repair Manual

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24
Q

The life span that a product will remain useful, and in FAA AC 43-214 define shelf life as the length of time a raw material may be in storage under specific conditions and
still meet the requirements of the applicable material specification, also known as storage
life.

A

Shelf Life

25
Q

The cumulative length of time a material may be out of freezer storage, prior to curing, and still maintain the required processability characteristics and mechanical
properties.

A

Out Life

26
Q

Types of Reinforcing Materials

A

Fiber Glass, Aramid, Carbon, Boron, Ceramic

27
Q

Is made from a small strands of molten silica glass that are spun together & woven into cloth.

A

Fiberglass

28
Q

3 Common Types of Fiberglass

A

E-glass S-glass C-glass

29
Q

is a registered trademark of the El DuPont company
and its most widely used Aramid.

A

Kevlar

30
Q

Grade of a Kevlar fibers

A

Kevlar grade 49
Kevlar grade 29
Kevlar grade 129

31
Q

Is a very strong, stiff reinforcement and used for its rigid
strength characteristics.

A

Carbon

32
Q

are made by depositing the element boron on a thin
filament of tungsten

A

Boron

33
Q

are used when a high temperature
application is needed.

A

Ceramic

34
Q

A manufacturer can design a part by using different types
of fiber combination (hybrid) to tailor a part for
strength or to reduce cost.

A

Hybrids

35
Q

What are the types of Hybrid

A

Intraply hybrid
Interply hybrid
Selective placement

36
Q

utilize reinforcing material that is woven from two
or more different fibers.

A

Intraply hybrid

37
Q

uses two or more layers of different reinforcing
materials that are laminated together.

A

Interply Hybrid

38
Q

Fibers may be selectively place to give greater strength , flexibility or reduced cost.

A

Selective Placement

39
Q

Fabric Style

A

1) Non-Woven Fabric/ Unidirectional Fabric
2) Woven fabric / BI DIRECTIONAL FABRIC
3) Mat

40
Q

Manufacturers construct honeycomb from the ff:

A
  • Aluminum
  • Kevlar
  • Carbon
  • Fiberglass
  • Paper
  • Steel
41
Q

This core materials consist of six sided shape of a natural
honeycomb, which provide a core with a very high strength to weight ratio

A

Honeycomb

41
Q

is a paper impregnated material which is widely used as
an advance composite core material

A

NOMEX

42
Q

Kinds of a Resin systems

A

–Polyester resin systems
-Epoxy resin systems
-Polybutadiene resins
Polyester resin systems

43
Q

used heat to form and set the shape of the part
permanently

A

Thermoset

44
Q

Thermoplastic c resins use heat to form the part into
the desired shape is heated a second time, it will
flow to form another shape

A

Thermoplastics

45
Q

Resin marix are two-part systems consisting of the
ff:

A

Resin and Hardener/Curing agent

46
Q

This fabric are woven together in a number of weaves and weights and are more resistant to fiber breakout, delamination, and more damage tolerant than unidirectional materials

A

Woven Fabric

47
Q

This fiber orientation in which all of the major fibers run in onedirection , giving strength in that direction is known as the unidirectional or the non woven fabric.

A

Non Woven

48
Q

plain, satin, crowfoot

A

Weaves

49
Q

is measure in thousandths of an inch or
millimeters

A

Thickness

50
Q

is measured in ounces per square yards, or a
gram per square meter

A

Weight

51
Q

is the number of yarns per inch of width in the
warp and fill direction

A

Count

52
Q

s the yield or denier, twist and ply
level

A

Yarn Construction

53
Q

not as strong as a unidirectional or woven fabric , and therefore is not commonly used in a repair work.

A

Mat

54
Q

is at 45 to a warp threads, and can be formed into
contoured shapes .

A

Bias

55
Q

The threads that run the length of the fabric as it comes off the bolt and designated at 0 , more threads and stronger than fill directions

A

Warp

56
Q

Are those that run perpendicular to the warp fibers, designated as
90 and ____ are the threads that interweave with the warp threads.

A

Weft

57
Q

It is parallel to the warp threads, and its been removed for all fabrication and repair works.

A

SELVAGE EDGE

58
Q

are the fabrics that have the
resin system already impregnated into the
fabric.

A

Pre-preg

59
Q

Parts of Honeycomb

A

Facesheet, adhesive and honeycomb

60
Q

The two most common types of core materials utilized in sandwich
construction

A

Honeycomb and foam cores

2101 (13 decks)

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