1. Springer, W.T., Lawrence, K.L., and Lawley, T.J. “The Effect of a Symmetric Discontinuity on Adjacent Material in a Longitudinally Vibrating Uniform Beam,” submitted to Experimental Mechanics.
2. Bishop, R.E.D. andJohnson, D.C., “Introduction,”The Mechanics of Vibration, Cambridge Univ. Press, London, Ch. 1, 40–47 (1960).
3. Bishop, R.E.D., Gladwell, G.M.L. andMichaelson, S., “The Vibration of Conservative Systems Having a Finite Number of Degrees of Freedom,”The Matrix Analysis of Vibration, Cambridge Univ. Press, London, Ch. 2, 49–51 (1965).
4. Bishop, R.E.D. andJohnson, D.C., “Torsional and Longitudinal Vibration of Uniform Shafts and Bars,”The Mechanics of Vibration, Cambridge Univ. Press, London, Ch. 6 273–281 (1960).
5. Adams, R.D. et al., “A Vibration Technique for Non-Destructively Assessing the Integrity of Structures,”J. Mech. Eng. Sci. 20 (2),93–100 (1978).