While performing notch impact tests, a material specimen is tested under impact loading in the form of an elongated building block - single-sided, notched and typically tempered. The unnotched rear ...

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Thwing-Albert Instrument Co. has introduced a dart drop impact tester, for measuring the impact resistance of plastic film, coated paper and other sheet materials. The company in West Berlin, N.J., ...

The impact response of composite materials was of only minor interest prior to the introduction of carbon fiber in the mid-1960s. Before that time, the composites in use were primarily reinforced with ...