INVESTIGADORES
FLORES Fernando Gabriel
artículos
Título:
Thickness Changes in Pressurised Shells
Autor/es:
GODOY LUIS A; FLORES FERNANDO G.
Revista:
INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING
Editorial:
ELSEVIER SCI LTD
Referencias:
Lugar: Amsterdam; Año: 1993 vol. 55 p. 451 - 459
ISSN:
0308-0161
Resumen:
A pressurised thin spherical shell with reductions in thickness is analysed using a geometrically linear and non-linear version of a finite element formulation. The change in thickness is assumed to have a circular shape and is symmetric about the middle surface of the shell. The influence of two parameters is considered on the non-linear behavior: the change in the thickness and the extent of the zone affected. The results show that the most critical stresses arise from the hoop membrane action at the edges of the zone affected. It is also shown that a linear analysis can be highly conservative in terms of the bending action.
