Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Frithiof I. Niordson"'
Publikováno v:
IUTAM ISBN: 9783319310619
The IUTAM Reports were issued annually with one exception. There was a combined three-year report for the years 1954–55–56.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9aa452b8c9520b6f61ea6a232ecc014e
https://doi.org/10.1007/978-3-319-31063-3_10
https://doi.org/10.1007/978-3-319-31063-3_10
Autor:
Frithiof I. Niordson
Publikováno v:
International Journal of Solids and Structures. 38:8375-8388
We derive the exact two-dimensional equations for a spherical shell from the three-dimensional elastic state by an asymptotic expansion. The resulting equations are presented as a power series in the thickness of the shell. Results, for which a three
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d958bfa372fa564137fe52941ef92a55
https://doi.org/10.1016/s0020-7683(01)00012-9
https://doi.org/10.1016/s0020-7683(01)00012-9
Autor:
Frithiof I. Niordson
Publikováno v:
International Journal of Solids and Structures. 37:1817-1839
We derive the two-dimensional shell equations for a circular cylindrical shell by means of an asymptotic expansion of the three-dimensional elastic state. The assumptions involved are of mathematical character only and concern the continuity, differe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f468c32e5ccd1f6655337aee63b170a
https://doi.org/10.1016/s0020-7683(98)00331-x
https://doi.org/10.1016/s0020-7683(98)00331-x
Publikováno v:
Archive of Applied Mechanics (Ingenieur Archiv). 69:677-689
We study the accuracy of the lowest-order bending theory of shells, derived from an asymptotic expansion of the three-dimensional theory of elasticity, by comparing the results of this theory for a cylindrical shell with clamped ends with the results
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5859a12f1e7af4b39de871cdb67c76d
https://doi.org/10.1007/s004190050250
https://doi.org/10.1007/s004190050250
Autor:
Frithiof I. Niordson
Publikováno v:
International Journal of Solids and Structures. 34:2957-2968
The harmonic in-plane vibrations of axisymmetrical annular disks of non-uniform thickness are analysed and the problem of finding an optimal shape is given a classical mathematical formulation with differential equations and boundary conditions. It i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae4bb7bcc411bda6ae72aeecb22a69c5
https://doi.org/10.1016/s0020-7683(97)00186-8
https://doi.org/10.1016/s0020-7683(97)00186-8
Autor:
Frithiof I. Niordson
Publikováno v:
Applied Mechanics Reviews. 54:R17-R19
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e1f680cf42148a93fc42617b264e854
https://doi.org/10.1115/1.1390522
https://doi.org/10.1115/1.1390522
Autor:
Frithiof I. Niordson
Publikováno v:
International Journal of Solids and Structures. 20:667-687
This paper is devoted to the problem of free, harmonic vibrations of thin, elastic, spherical shells. The differential equations are rederived in an invariant form together with the appropriate kinematic and static boundary conditions. The complete s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97ce69b67e4a78095d728ba2f4e307fc
https://doi.org/10.1016/0020-7683(84)90023-4
https://doi.org/10.1016/0020-7683(84)90023-4
Autor:
Frithiof I. Niordson
Publikováno v:
International Journal of Solids and Structures. 15:167-181
We derive the two-dimensional equations of motion for a vibrating plate by means of an asymptotic expansion of the three-dimensional elastic state. The assumptions involved are of mathematical character only and concern the continuity, differentiabil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5accf0a66b0a8a05292112a0d6e2e428
https://doi.org/10.1016/0020-7683(79)90020-9
https://doi.org/10.1016/0020-7683(79)90020-9
Autor:
Frithiof I. Niordson
Publikováno v:
International Journal of Solids and Structures. 19:141-151
A constraint on the maximum absolute value of the slope of the thickness function is found to have a profound influence on the problem of optimal design of axisymmetric elastic plates by securing a unique, regular solution. It is also shown, that exc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dfee92227ead67b4494d58fa52b0dbfe
https://doi.org/10.1016/0020-7683(83)90005-7
https://doi.org/10.1016/0020-7683(83)90005-7
Autor:
Frithiof I. Niordson
Publikováno v:
International Journal of Solids and Structures. 24:947-961
This paper considers the spectrum of an open, thin, elastic, spherical shell, i.e. the set of natural frequencies and their distribution. The results are obtained by extending the analysis given by the author in an earlier paper to the high frequency
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e7fd263d2d63e468ff50b0f4406ccd4
https://doi.org/10.1016/0020-7683(88)90043-1
https://doi.org/10.1016/0020-7683(88)90043-1