A New Analytical Approach to Drill Pipe Breakage II

[+] Author and Article Information
J. L. Bogdanoff

School of Aeronautical and Engineering Sciences, Purdue University, Lafayette, Ind.; Midwest Applied Science Corporation, Lafayette, Ind.

J. E. Goldberg

School of Civil Engineering, Purdue University; Midwest Applied Science Corporation

J. Eng. Ind 83(2), 101-106 (May 01, 1961) (6 pages) doi:10.1115/1.3664433 History: Received March 21, 1960; Online December 09, 2011


Drill pipe dynamics assuming torsional and longitudinal displacements are formulated assuming that the forces which act at the bit and the sides of the pipe are random in nature. It is shown that assuming certain criteria of failure the coupling constants may be adjusted to reduce to a minimum the probability of failure.

Copyright © 1961 by ASME
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