Definitions /Dictionary/Glossary - nptel

where ‘p’ is the distributed loading (force per unit length) acting in the same direction as y (and
w), ‘E’ is the Young's modulus of the beam, and I is the area moment of inertia of the beam's
cross section.
If ‘E’ and ‘I’ do not vary with ‘x’ along the length of the beam, then the beam equation
simplifies to,
Exothermic: Accompanied by generation of heat.
Exotherm: The liberation or evolution of heat during the curing of a plastic product.
Exothermic Heat: Internally developed heat accompanying a chemical reaction.
Extenders: Low cost materials used to dilute or extend high cost resins without much lessening
of properties.
Extensometer: A device for measuring linear strain.
Extrusion: A process normally used with a compound. the compound is forced through a die,
producing a profiled shape.
Fabric: A material made of woven fibres or filaments.
Fabric Fill Face: That side of the woven fabric where the greatest number of yams are
perpendicular to the selvage.
Fabric, Nonwoven: A textile structure produced by bonding or interlocking of fibers, or both,
accomplished by mechanical, chemical, thermal, or solvent means, and combinations thereof.
Fabric Warp Face: That side of the woven fabric where the greatest numbers of yarns are
parallel to the selvage.
Fabric, Woven: A generic material construction consisting of interlaced yarns or fibers, usually
a planar structure. Specifically, as used in this handbook, a cloth woven in an established weave
pattern from advanced fiber yarns and used as the fibrous constituent in an advanced composite
lamina. In a fabric lamina, the warp direction is considered the longitudinal direction, analogous
to the filament direction in a filamentary lamina.