Instantaneous Energy Dissipation Rate in a Lap Joint—Uniform Clamping Pressure

[+] Author and Article Information
A. F. Metherell

Advanced Research Laboratories, Douglas Aircraft Company, Huntington Beach, Calif.

S. V. Diller

Aircraft Division, Douglas Aircraft Company, Long Beach, Calif.

J. Appl. Mech 35(1), 123-128 (Mar 01, 1968) (6 pages) doi:10.1115/1.3601124 History: Received May 31, 1967; Online September 14, 2011


Equations are derived for the load/deflection relations, the energy dissipation per cycle, and the instantaneous rate of dissipation. The energy dissipation per cycle is only valid for steady-state cyclic loading, whereas the load/deflection equations and instantaneous dissipation rate are valid for arbitrary loading and take into account the previous loading history. The difference between the instantaneous dissipation rate in a lap joint and the equivalent linear system is illustrated for cases of sinusoidal loading and triangular loading.

Copyright © 1968 by ASME
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