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Investigations of stresses in drill bit and rock under static loads
Photoelastic technique of experimental stress analysis was principal method used to obtain data; transparent models and transmitted light were employed to investigate patterns in drill-bit models and isotropic materials under bit when subjected to concentrated static load; comparative stress data for anisotropic rock were obtained by reflective photoelastic technique; brittle lacquer and extensometer were used to obtain supplementary information wherever substantiating data were desired to check photoelastic results.
Investigations of stresses in drill bit and rock under static loads
Photoelastic technique of experimental stress analysis was principal method used to obtain data; transparent models and transmitted light were employed to investigate patterns in drill-bit models and isotropic materials under bit when subjected to concentrated static load; comparative stress data for anisotropic rock were obtained by reflective photoelastic technique; brittle lacquer and extensometer were used to obtain supplementary information wherever substantiating data were desired to check photoelastic results.
Investigations of stresses in drill bit and rock under static loads
U S Bur Mines -- Report Investigations
Rambosek, A.J. (author) / Williams, J.B. (author)
1963
21 pages
Report
English
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