Striker Geometry and Its Effect on Absorbed Energy

EA Ruth

doi:10.1520/STP14659S

SYMPOSIA PAPER Published: 01 January 1995

STP14659S

Striker Geometry and Its Effect on Absorbed Energy

Source

ASTM Standard Test Methods for Notched Bar Impact Testing of Metallic Materials (E 23) requires the face of the striker to have an 8 mm radius and to be 4 mm wide. At the corners where the 8 mm radius meets the sides of the striker, E 23 calls for a radius of 0.25 mm ± 0.05 mm. This 0.25 mm radius causes a problem, as it can be worn out of tolerance quickly during normal testing. This paper presents data which exhibits the effects on absorbed energy when the corner radius is enlarged. Data is also presented which compares absorbed energy obtained using an ASTM E 23, 8 mm striker with absorbed energy obtained using an ISO 2 mm striker.

Author Information

Ruth, EA

Engineering & Systems, Tinius Olsen Testing Machine Co., Inc., Willow Grove, Pennsylvania

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Details

Developed by Committee: E28

Pages: 101–110

DOI: 10.1520/STP14659S

ISBN-EB: 978-0-8031-5307-3

ISBN-13: 978-0-8031-2018-1

Striker Geometry and Its Effect on Absorbed Energy

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