Zobrazeno 1 - 10
of 49
pro vyhledávání: '"John K. Dienes"'
Autor:
John K. Dienes
Publikováno v:
Acta Mechanica. 233:4851-4859
Publikováno v:
Journal of the Mechanics and Physics of Solids. 54:1237-1275
A statistical approach has been developed for modeling the dynamic response of brittle materials by superimposing the effects of a myriad of microcracks, including opening, shear, growth and coalescence, taking as a starting point the well-establishe
Autor:
John K. Dienes
Publikováno v:
Structural Control and Health Monitoring. 13:169-189
Brittle polycrystalline materials such as rocks, ceramics, and certain metals contain microcracks that can grow and coalesce under sufficiently high stress, resulting in failure and, possibly, fragmentation. Such processes are idealized in this paper
Autor:
John K. Dienes, Q.H. Zuo
Publikováno v:
International Journal of Solids and Structures. 42:1309-1326
The theory of penny-shaped cracks has been the subject of numerous investigations because of its conceptual simplicity and the feasibility of obtaining mathematical solutions. The simplicity of many of the final results makes the theory useful in man
Autor:
John K. Dienes
Publikováno v:
Acta Mechanica. 148:79-92
Cracks that are subjected to a sudden, sufficiently large, increase in stress respond with a combination of opening and unstable growth. This behavior is idealized here by representing the opening and growth as two generalized coordinates and determi
Autor:
John K. Dienes
Publikováno v:
Advances in Applied Mathematics. 24:57-64
In rock mechanics it is often assumed that the number of cracks whose size exceeds c is given by the exponential N0e−c/c̄. It is difficult, however, to examine the cracks in a three-dimensional body to verify this exponential variation, and one is
Autor:
John K. Dienes, J. D. Kershner
Publikováno v:
Journal of Computer-Aided Materials Design. 7:217-237
The growth of cracks and their role in the formation of hot spots in explosives are addressed in a three-part discussion. First the method of generalized coordinates is used to represent crack dynamics with two ordinary differential equations for cra
Autor:
Johndale C. Solem, John K. Dienes
Publikováno v:
Acta Mechanica. 138:155-162
We calculate the stress-strain relation for elastomeric foam from anab initio theory, which shows that the “plateau” and “densification” regions should be described by a hyperbola. The theory seems to agree reasonably well with experiment.
Autor:
L. P. Ku, H. W. Hendel, S. L. Liew, J. D. Strachan, Maurizio Angelone, Paola Batistoni, Marcello Martone, Mario Pillon, Massimo Rapisarda, Sofia Rollet, M. I. Avramenko, V. A. Burtsev, P. A. Ivanov, N. I. Kazachenko, V. S. Kuznetsov, R. T. Santoro, R. G. Alsmiller, J. M. Barnes, Lian-Yan Liu, Edward T. Cheng, Shigeo Numata, Yasuhiko Fujii, Makoto Okamoto, Alan J. Wootton, Steven C. McCool, Shaobai Zheng, David L. Galbraith, Terry Kammash, William L. Barr, W. M. Stacey, John Mandrekas, Jean Johner, Shigeru Tanaka, Yoshihiro Ohara, Shin Yamamoto, John K. Dienes, John P. Kenny, Frederick J. Mayer, John R. Reitz, Yeong E. Kim, Takaaki Matsumoto
Publikováno v:
Fusion Technology. 19:399-405
Autor:
John K. Dienes
Publikováno v:
Fusion Technology. 19:543-546
The variability of results concerning cold fusion, together with the difficulty of explaining the observations, suggests that some nonstandard processes may be occurring. One such possibility is th...