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Book Synopsis Invited and Review Papers from the 31st Annual Meeting of the Division of Plasma Physics of the American Physical Society, 13-17 November 1989, Anaheim, California by : Akira Hasegawa
Download or read book Invited and Review Papers from the 31st Annual Meeting of the Division of Plasma Physics of the American Physical Society, 13-17 November 1989, Anaheim, California written by Akira Hasegawa and published by . This book was released on 1990 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Invited and review papers from the 31st annual meeting of the Division of Plasma Physics of the American Physical Society by : American Physical Society. Division of Plasma Physics
Download or read book Invited and review papers from the 31st annual meeting of the Division of Plasma Physics of the American Physical Society written by American Physical Society. Division of Plasma Physics and published by . This book was released on 1990 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Invited and Review Papers from the 32nd Annual Meeting of the Division of Plasma Physics of the American Physical Society 12-16 November 1990 Cincinnati, Ohio by : American Physical Society. Division of plasma physics. Annual meeting
Download or read book Invited and Review Papers from the 32nd Annual Meeting of the Division of Plasma Physics of the American Physical Society 12-16 November 1990 Cincinnati, Ohio written by American Physical Society. Division of plasma physics. Annual meeting and published by . This book was released on 1991 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Invited and review papers from the 32nd Annual Meeting of the Division of Plasma Physics of the American Physical Society by : American Physical Society. Division of Plasma Physics
Download or read book Invited and review papers from the 32nd Annual Meeting of the Division of Plasma Physics of the American Physical Society written by American Physical Society. Division of Plasma Physics and published by . This book was released on 1991 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Review, Tutorial and Invited Papers from the 43rd Annual Meeting of the APS Division of Plasma Physics by : American Physical Society Division of Plasma Physics
Download or read book Review, Tutorial and Invited Papers from the 43rd Annual Meeting of the APS Division of Plasma Physics written by American Physical Society Division of Plasma Physics and published by . This book was released on 2002 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Invited and Review Papers from the ... Annual Meeting of the Division of Plasma Physics of the American Physical Society by : American Physical Society. Division of Plasma Physics
Download or read book Invited and Review Papers from the ... Annual Meeting of the Division of Plasma Physics of the American Physical Society written by American Physical Society. Division of Plasma Physics and published by . This book was released on 1991 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Invited and Review Papers from the ... Annual Meeting of the Division of Plasma Physics of the American Physical Society by : American Physical Society Division of Plasma Physics
Download or read book Invited and Review Papers from the ... Annual Meeting of the Division of Plasma Physics of the American Physical Society written by American Physical Society Division of Plasma Physics and published by . This book was released on 1998 with total page 635 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Review, Tutorial and Invited Papers from the ... Annual Meeting of the APS Division of Plasma Physics by : American Physical Society. Division of Plasma Physics
Download or read book Review, Tutorial and Invited Papers from the ... Annual Meeting of the APS Division of Plasma Physics written by American Physical Society. Division of Plasma Physics and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Stress corrosion cracking can potentially cause fuel failures at circumferential ridges in the sheath. finite element computer codes elestres and feast are used to calculate two-dimensional, axisymmetric, elastic-plastic sheath stresses at and near the circumferential ridges. the level of stresses is given by the fuel design (such as pellet/sheath diameters, pellet length, pellet density) and by the operating conditions (such as power history). the accuracy, convergence, and cost of the stress calculations, however, are determined by the discretization used in the calculations: the number of nodes in the finite element mesh; the shape of the individual finite elements; the pattern into which the finite elements are arranged; and the size of the calculation-steps into which the power history is subdivided. in this study, we determined the discretization that gives a reasonable compromise of accuracy, convergence, and cost for the stress calculations. the highest accuracy is obtained by using triangular finite elements of aspect ratios close to one, and assembling them into hexagonal patterns. to caputure the stress gradients, five nodes are required across the sheath wall at the ridge, but two nodes are sufficient near the midplane of the pellet. the resulting mesh contains about 200 nodes and about 300 finite elements. calculation-steps of 6 kw/m provide a convergent solution, with a factor of two margin against numerical divergence. with the above arrangement, feast needs about 2.4 seconds on a cdc/cyber 175 computer to calculate sheath stresses per calculation-step. six radial nodes at the ridge would double the computing cost. decreasing the size of the calculation-steps means more calculations are needed to analyze a given power history, giving a linear increase in computing cost.
Book Synopsis Thirty-first annual meeting of the division of plasma physics american physical society, anaheim, california, 13-17 November 1989 by :
Download or read book Thirty-first annual meeting of the division of plasma physics american physical society, anaheim, california, 13-17 November 1989 written by and published by . This book was released on 1990 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stress corrosion cracking can potentially cause fuel failures at circumferential ridges in the sheath. finite element computer codes elestres and feast are used to calculate two-dimensional, axisymmetric, elastic-plastic sheath stresses at and near the circumferential ridges. the level of stresses is given by the fuel design (such as pellet/sheath diameters, pellet length, pellet density) and by the operating conditions (such as power history). the accuracy, convergence, and cost of the stress calculations, however, are determined by the discretization used in the calculations: the number of nodes in the finite element mesh; the shape of the individual finite elements; the pattern into which the finite elements are arranged; and the size of the calculation-steps into which the power history is subdivided. in this study, we determined the discretization that gives a reasonable compromise of accuracy, convergence, and cost for the stress calculations. the highest accuracy is obtained by using triangular finite elements of aspect ratios close to one, and assembling them into hexagonal patterns. to caputure the stress gradients, five nodes are required across the sheath wall at the ridge, but two nodes are sufficient near the midplane of the pellet. the resulting mesh contains about 200 nodes and about 300 finite elements. calculation-steps of 6 kw/m provide a convergent solution, with a factor of two margin against numerical divergence. with the above arrangement, feast needs about 2.4 seconds on a cdc/cyber 175 computer to calculate sheath stresses per calculation-step. six radial nodes at the ridge would double the computing cost. decreasing the size of the calculation-steps means more calculations are needed to analyze a given power history, giving a linear increase in computing cost.
Book Synopsis Invited and Review Papers from the ... Annual Meeting of the Division of Plasma Physics of the American Physical Society by : American Physical Society Division of Plasma Physics
Download or read book Invited and Review Papers from the ... Annual Meeting of the Division of Plasma Physics of the American Physical Society written by American Physical Society Division of Plasma Physics and published by . This book was released on 1992 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: