Material Forms

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Material Forms
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Introduction
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Laminae are single layers, and laminates are
combinations of laminae.
Transverse (90o)
Unidirectional (0o)
Bias ( 45o)
Detail I Ply lamina state subscripts (1,2,3
system)
Detail II Laminate state subscripts (x,y,z
system)
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A number of conventions for coding fiber
direction, ply sequences, and fiber orientation
percentages are used within the industry.
Ply Sequence Coding and Layup Percentage
Coding Example-
Superscripts
Subscripts of layers s symmetrical
s1 S-glass tape f2 graphite fabric
45f2 1/Os12/45f21 S
45f2 /Os1/ Os1/45f2 45f2 /Os1/
Os1/45f2
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Tape and Fabric
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Fabric Weave Patterns
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