SYMPOSIA PAPER Published: 01 January 1992

Mechanical Reduction of Inertially Generated Effects in Single-Edge Notched Bend (SENB) Specimens Subjected to Impact Loading


Two novel mechanical techniques are described for reducing the magnitude of the inertial component of dynamic load/time records while maintaining a high specimen velocity response. One approach uses a load-line plastic absorber to inhibit the oscillation from establishing itself; the second uses precompressed wing absorbers to reduce selectively the amplitude of the load oscillations commonly associated with inertial energy transfer. Both systems independently generate load-time records in which the magnitude of the oscillations is greatly reduced without a significant change in vibration frequency. The load-line also reduces the magnitude of the initial tup load spike commonly associated with impact testing. The data indicate that the use of these absorbers does not introduce any extraneous effects in the dynamic load/time records and that maximum damping can be obtained by combining the two techniques. The elastic portion of the dynamic and static load/displacement data also shows a good correlation.

Author Information

KarisAllen, KJ
Defence Research Establishment Atlantic, Darthmouth, Nova Scotia, Canada
Morrison, J
Defence Research Establishment Pacific, FMO Victoria, British Columbia, Canada
Price: $25.00
Contact Sales
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Developed by Committee: E08
Pages: 76–91
DOI: 10.1520/STP15517S
ISBN-EB: 978-0-8031-5192-5
ISBN-13: 978-0-8031-1429-6