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Author: Arthur A. Braun Publisher: ASTM International ISBN: 080311401X Category : Fracture mechanics Languages : en Pages : 295
Book Description
Provides both specific and general information regarding state-of-the art materials testing using automation technology as a means of: improving the reliability of data; eliminating the need for constant operator supervision; running tests that would be impossible without a computer; and reducing an
Author: Arthur A. Braun Publisher: ASTM International ISBN: 0803124163 Category : Fracture mechanics Languages : en Pages : 157
Book Description
From a November 1995 symposium in Norfolk, Virginia 11 papers report on how computers are playing an ever greater role in testing for fatigue and fracture as applications have become more sophisticated and hardware smaller and more powerful over the past few years. Covering data acquisition, simulat
Author: BAJ Schaap Publisher: ISBN: Category : Data acquisition system Languages : en Pages : 16
Book Description
An automated system for fatigue crack growth and fracture toughness measurements has been developed for irradiated stainless steels tested at temperatures up to 925 K. The system, including a microcomputer, is based on the d-c potential-drop technique for crack extension measurements. Specimens of the compact-tension type are used for the experiments. A description is given of the potential-drop method and the automated data acquisition system. The method of collecting N-a data pairs is given as well as the calculation and analysis of the fatigue crack growth rate (da/dN) and stress-intensity factor (?K). The measurement of load, deflection, and crack extension data to determine the J-versus-?a curves is also discussed.