Zobrazeno 1 - 9
of 9
pro vyhledávání: '"R. H. Hawley"'
Publikováno v:
Engineering Fracture Mechanics. 13:371-385
Fracture initiation experiments were conducted to determine the fracture toughness of an AISI 1020 hot-rolled steel under quasi-static and dynamic loading conditions. The dynamic tests were performed on specimens consisting of notched round bars load
Publikováno v:
Journal of Applied Mechanics. 45:60-66
A study is presented on the influence of strain rate and strain rate history on the flow stress of several metals. Experiments were performed on specimens of four polycrystalline metals: 1100-0 aluminum, OFHC copper, AZ31 B magnesium, and commerciall
Autor:
R. H. Hawley, W. R. Powell
Publikováno v:
Experimental Mechanics. 7:242-247
Experimental verification is given for the predicted action of a model depicting polycrystalline or sintered-carbide systems under stress as proposed by Drucker. The models employed consisted of a regular array of hexagonal bars of aluminum separated
Publikováno v:
Journal of Applied Mechanics. 39:651-656
Experiments are described in which specimens of lead are strained in torsion at high rates using the split Hopkinson bar and explosive loading. Tests were conducted at nominal strain rates of 1000 sec−1 and 5000 sec−1 as well as at “static” r
Autor:
J. Pattinson, J. v. Ferentzy, H. Brearley, H. Mastbaum, M. Rohmer, Th. Brown, G. Rollin, H. W. Rowell, J. A. Muller, J. Fasal, H. Angenot, A. G. Levy, E. C. Champion, L. A. Youtz, R. H. Hawley, H. Causse, A. Gibb, F. Ibbotson, J. S. C. Wells, L. B. Skinner, E. D. Campbell, G. Lunge, R. Job, Dinan, H. S. Pattinson, S. W. Young, A. Fraenkel, S. Burman
Publikováno v:
Zeitschrift f�r Analytische Chemie. 46:722-737
Publikováno v:
Journal of Applied Mechanics. 38:83-91
The difficulties involved in the accurate measurement of the flow stress of materials at high rates of deformation are reviewed, and methods of overcoming these difficulties are discussed. It is concluded that the best experimental method is that in
Publikováno v:
Journal of Dynamic Systems, Measurement, and Control. 93:221-226
In a companion paper to the present, a model is derived to predict human reflex motion. This model contains a set of seven neuromuscular parameters which are evaluated in the present paper on the basis of results obtained from experiments performed o
Autor:
D. C. Drucker, R. H. Hawley
Publikováno v:
Experimental Mechanics. 13:1-6
Highly precompressed 1020 HR steel, 0.65 prestrain at 400°F (204°C), tested in nominally uniform tension at −80°F (−62°C) fractures at about 110,000 psi (760 MN/m2) with less than 0.02 plastic strain. Yet the addition of a hydrostatic pressur
Results are presented of a series of experiments performed with two steels to investigate the dependence of flow stress on strain rate and its history. For this purpose quasi-static, dynamic and incremental strain rate tests were conducted on SAE 102
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1eaa4e4b3a9093f30f2ead276189e0d5
https://doi.org/10.21236/ada067204
https://doi.org/10.21236/ada067204