K. Shyamasundar, B. S. Aswathanarayana and M. Venugopal Naidu Indian Plywood INdustries Research and Training Institute, P. O. Box 2273, Bangalore 560 022, India
The dynamic modulus of elasticity of timber scantlings of different sizes and species were determined instantaneously in the longitudinal mode of vibration using a microprocessor based elasto sonic equipment developed for the first time in India. Tests were also carried out to determine the static modulus of elasticity and the results were analysed. A fairly good correlation exists between the dynamic and static modulus of elasticity. As the equipment is easily portable unlike stress grading machine, constructional timbers can be easily sorted and graded by this elasto sonic method at site.
Publication Source: Trends in NDE Science & Technology; Proceedings of the 14th World Conference on Non-Destructive Testing, New Delhi, 8-13 December 1996.Vol. 2, pages 761 - 764 Publisher:Ashgate Publishing Company
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