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Constituent Materials 1
Laminate Plate Theory
$100 $100 $100$100$100
$200 $200 $200$200$200
$300 $300$300$300$300
$400 $400$400$400
$500 $500$500$500
Potpourriand Processing
Composite Laminates
$400
$500
Constituent Materials 2
Final Jeopardy!!!
Category:
Composite Laminates
Final Jeopardy
List all of the “special laminate” categories for this composite (theta=45 deg).
What is ...
Final Jeopardy
• Balanced– A16= A26=0
• Symmetric– Bij=0
• Quasi-isotropic– [A] independent of orientation
Two of the three different common precursors for
carbon fibers
What are ...
Constituent Materials 1 For $100
1.PAN
2.Mesophase Pitch
3.RayonBack toGame
Kevlar is an example of this type of fiber
What is ...
Constituent Materials 1 For $200
Aramid Fiber
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Two general types of this material are: boron oxide
containing and boron oxide free
What is ...
Constituent Materials 1 For $300
E-glass
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There are two general types of this class of materials: cross-linked (formed by a
condensation polymerization) and thermoplastic (formed by an addition
polymerization)?
What are ...
Constituent Materials 1 For $400
Polyimide Resins
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This is the most widely used polymer in structural
composites
What is ...
Constituent Materials 1 For $500
Unsaturated Polyester Resin
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This is the basic chemical structure
of an epoxide group on all epoxy resins
What is ...
Constituent Materials 2 For $100
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Three examples of mid- and/or high temperature
thermoplastic resins used in structural FRPs
What are ...
Constituent Materials 2 For $200
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This is coating that is applied to the surface of glass fibers to
prevent abrasion between fibers and to improve coupling with the
polymer matrix
What are ...
Constituent Materials 2 For $300
Size
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The polymerization of these resins is a result of the formation of triazine
rings through their –OCN functional groups.
What are ...
Constituent Materials 2 For $400
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Cyanate Esters
Identify the general structure below
What is ...
Constituent Materials 2 For $500
Bismaleimide Resin
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This diagram is a tool that can be helpful in describing the
isothermal curing process for thermosetting resins
What is
PotpourriFor $100
Time-temperature transformation diagram
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What is ...
PotpourriFor $200
The weight of the polymer in grams
extruded during a 10 minute test is this
(abbreviated MFI).
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Melt flow index
This is the relationship between and
What is ...
PotpourriFor $300
12 21
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2
21
1
12
EE
Calculate the B-matrix for the following laminate (thickness of each ply is 1 mm,
and theta=45 deg).
What is ...
PotpourriFor $400
Symmetric, so:
Bij=0
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List two common failure theories for a composite
lamina
What are ...
PotpourriFor $500
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1. Maximum Stress Theory2. Maximum Strain Theory3. Tsai-Wu Failure Theory
List the plyes in order from the tool for the following laminate
[50/±(0/30)/5]S
What are ...
Composite Laminates For $100
[50/±(0/30)/5]S
50, 0, 30, 0, -30, 5, -30, 0, 30, 0, 50
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A laminate where for every +θ ply there is another at -θ
What is ...
Composite Laminates For $200
Balanced Laminate
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Pairs of layers of opposite orientation but the same material and thickness symmetrical w.r.t .middle surface of
laminate.
What is ...
Composite Laminates For $300
Antisymmetric Laminate
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•Example: [+θ /- θ /+ θ /- θ]
A [0, 60, -60] lay-up is this type of laminate
What is ...
Composite Laminates For $400
Quasi-isotropic
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What is ...
Composite Laminates For $500
This picture is an example of …
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Shear-extension coupling
Results when 16 and 26 terms of Qbar matrix are nonzero
Definition for the principal material direction (1, 2, 3)
What is ...
Laminate Plate TheoryFor $100
1, 2, and 3 direction where 1 is the fiber direction, 2 is in plane
transverse and 3 is out of plane
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For plane stress (thin samples), these terms are zero in the equation below:
What is ...
Laminate Plate TheoryFor $200
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σ13= σ23= σ33=0
What are the values of z0 to z3 in the following laminate
What are ...
Laminate Plate TheoryFor $300
2mm thick
3mm thick1mm thick
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2mm thick
3mm thick1mm thick
z0=-3, z1=-1, z2=2, z3=3
Equations for ABD matrix
What are ...
Laminate Plate TheoryFor $400
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These equations are odd functions
What is ...
Laminate Plate TheoryFor $500
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