Impact test method

Details Impact test method Impact test method

1976-01-21

1977-02-22

Myracle, Jerry W.

Measuring and testing

Surface and cutting edge testing

Roughness

G01N 330

Patent

active

040086054

ABSTRACT:
A quick and reproducible method is disclosed for evaluating the impact properties of relatively stiff materials such as plastic. A test specimen in the form of a thin unnotched strand of known thickness is mounted in a holding means and subjected to impact by a pendulum type striking means having a predetermined potential energy content. The excess energy remaining in the striking means after breaking the specimen is measured and impact values determined by a mathematical formula as a function of specimen thickness and energy required to break the specimen.

REFERENCES:
patent: 2617293 (1952-11-01), Schnadt
patent: 3209585 (1965-10-01), Wolstenholme et al.

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