Zobrazeno 1 - 10
of 18
pro vyhledávání: '"R Karpp"'
Autor:
Edward R. Karpp, Norman H. Anderson
Publikováno v:
Journal of Research in Science Teaching. 34:359-376
Two theories of assessing function knowledge were compared for intuitive physics. The choice assessment theory, derived from Piaget, presents subjects with two physical situations, each specified by the values of two physical variables; subjects choo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9af3764b3de25a4ddc28e01f54c80f5
https://doi.org/10.1002/(sici)1098-2736(199704)34:4<359::aid-tea6>3.0.co
https://doi.org/10.1002/(sici)1098-2736(199704)34:4<359::aid-tea6>3.0.co
Publikováno v:
Astrophysics and Space Science. 94:401-412
We have tested the hypothesis that the universe underwent a single fragmentation event, separating into protogalactic volumes at a relatively early stage after the Big Bang. Assuming that the present total luminosity of each galaxy is proportional to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2c200ff9626e89eed4e720c7a996431
https://doi.org/10.1007/bf00653729
https://doi.org/10.1007/bf00653729
Publikováno v:
Journal of Applied Physics. 47:2975-2981
Criteria on jet formation and jet cohesiveness are proposed for collapsing solid plates and shells. These criteria are also applicable to impinging fluid sheets from plane or annular nozzles. Under the high impact speeds treated here, the solid plate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d777db4c638b45b22b7433a4908d0cae
https://doi.org/10.1063/1.323038
https://doi.org/10.1063/1.323038
Publikováno v:
Experimental Techniques. 5:4-7
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68be67137a084eee8976ec17ef3265ec
https://doi.org/10.1111/j.1747-1567.1981.tb01608.x
https://doi.org/10.1111/j.1747-1567.1981.tb01608.x
Publikováno v:
International Journal of Engineering Science. 23:1317-1330
A time-dependent, two-dimensional, finite-difference code can be used to model fragmenting cylinders. Strictly hydrodynamic treatment of the casing material generally overpredicts the final fragment velocity. A more definitive final fragment velocity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb0c136d767704831839c1e78b9b543b
https://doi.org/10.1016/0020-7225(85)90110-7
https://doi.org/10.1016/0020-7225(85)90110-7
Publikováno v:
Journal of Pressure Vessel Technology. 105:23-27
The response of steel containment vessels to the blast loading produced by the detonation of high explosives is investigated by experiments, computations, and analysis. The vessels are thin-wall shell structures that are nearly spherical. All explosi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ccf9fd86cf07ec55042f2a0ce942c97a
https://doi.org/10.1115/1.3264234
https://doi.org/10.1115/1.3264234
Publikováno v:
Le Journal de Physique Colloques. 46:C5-583
Essai de conception simple pour etudier le comportement de materiaux en grande deformation pour de grandes vitesses de deformation. Mode operatoire. Comparaison avec les donnees obtenues a la barre d'Hopkinson, par tests effectues sur des anneaux de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c84ff5e9e0db028d71dae27ec3bd969
https://doi.org/10.1051/jphyscol:1985575
https://doi.org/10.1051/jphyscol:1985575
Publikováno v:
Journal of Engineering Materials and Technology. 108:335-339
The freely expanding ring test (ERT) is a conceptually simple test for determining the stress-strain behavior of materials at large strains and at high strain rates. This test is conducted by placing a thin ring of test material in a state of uniform
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::967d66a9bd019f08475df6a1bce08576
https://doi.org/10.1115/1.3225891
https://doi.org/10.1115/1.3225891
Publikováno v:
Journal of Applied Physics. 48:172-178
The impact of two in‐series metal cylinders on rigid targets was studied experimentally and analytically. An analytical method was developed to determine the dynamic yield strengths of each material in the composite cylinder. This technique, which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1489325fb09e3ca5d8a4b7ebb41b6cd6
https://doi.org/10.1063/1.323304
https://doi.org/10.1063/1.323304
Autor:
Robert R. Karpp
Publikováno v:
Quarterly of Applied Mathematics. 42:15-29
The particle solution of the problem of the symmetric impact of two compressible fluid stream is derived. The plane two-dimensional flow is assumed to be steady, and the inviscid compressible fluid is of the Chaplygin (tangent gas) type. The equation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5a86ebd78421547ec3acfde9b0cddde
https://doi.org/10.1090/qam/736502
https://doi.org/10.1090/qam/736502