Impact resistance

Impact resistance

The resistance of plastic articles to fracture under stresses applied at high speeds.

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Part of Speech: noun
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Industry/Domain: Manufacturing
Category: Plastic injection molding
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impact resistance

Manufacturing; Plastic injection molding

The resistance of plastic articles to fracture under stresses applied at high speeds.

impact resistance

Textiles; Manufactured fibers

1. The resistance of a material to fracture by a blow, expressed in terms of the amount of energy absorbed before fracture. 2. In yarn or cord, the ability to withstand ...

impact resistance

Energy; Natural gas

Energy required to break a specimen by a sudden blow.

impact-resistant

Automotive; Automobile

Something that is stiffened (to a certain degree) to resist the force of a collision.

impact resistant glazing

Construction; Windows

Glass specifically manufactured to withstand impacts from airborne objects or forced entry. Usually a type of laminated glass often used in coastal areas impacted by hurricanes.

impact resistance test

Automotive; Automobile

A determination of the resistance to breakage by flexural shock of plastics, as indicated by the energy extracted from "standardized" pendulum-type hammers, mounted in standard ...

stress-strain curve

Manufacturing; Plastic injection molding

The curve plotting the applied stress on a test specimen versus the corresponding strain. Stress can be applied through shear, compression, flexure, or tension.

stress relaxation

Manufacturing; Plastic injection molding

The decay of stress at a constant strain.

linear mold shrinkage

Manufacturing; Plastic injection molding

The difference between the size of the part and the size of the mold cavity. Values given are often the average of a range.

shrinkage allowance

Manufacturing; Plastic injection molding

The dimensional allowance which must be made in molds to compensate for shrinkage of the plastic compound on cooling.

screw travel

Manufacturing; Plastic injection molding

The distance the screw travels forward when filling the mold cavity.

underflow

Manufacturing; Plastic injection molding

The dominant flow of two confronting flows, over the other. The lesser flow reverses direction giving poor surface appearance and structural strength. Underflow should be avoided ...

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