dc.contributor.author | Hutchinson, John W. | |
dc.date.accessioned | 2010-06-15T14:05:05Z | |
dc.date.issued | 2010 | |
dc.identifier.citation | Hutchinson, John W. 2010. Knockdown factors for buckling of cylindrical and spherical shells subject to reduced biaxial membrane stress. International Journal of Solids and Structures 47(10): 1443-1448. | en_US |
dc.identifier.issn | 0020-7683 | en_US |
dc.identifier.uri | http://nrs.harvard.edu/urn-3:HUL.InstRepos:4215082 | |
dc.description.abstract | Cylindrical shells under uniaxial compression and spherical shells under equi-biaxial compression display the most extreme buckling sensitivity to imperfections. In engineering practice, the reduction of load carrying capacity due to imperfections is usually addressed by use of a knockdown factor to lower the critical buckling stress estimated or computed without accounting for imperfections. For thin elastic cylindrical shells under uniaxial compression and spherical shells under equi-biaxial compression, the knockdown factor is typically as small as 0.2. This paper explores the alleviation of imperfection-sensitivity for loadings with a reduced circumferential (transverse) membrane stress component. The analysis of Koiter (1963) on the effect of an axisymmetric imperfection on the elastic buckling of a cylindrical shell under uniaxial compression is extended to both cylinders and spheres for loadings that produce general combinations of biaxial membrane stresses. Increases in the knockdown factor due to a reduction of the transverse membrane component are remarkably similar for cylindrical and spherical shells. | en_US |
dc.description.sponsorship | Engineering and Applied Sciences | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | Elsevier | en_US |
dc.relation.isversionof | doi:10.1016/j.ijsolstr.2010.02.009 | en_US |
dash.license | OAP | |
dc.subject | buckling | en_US |
dc.subject | imperfection-sensitivity | en_US |
dc.subject | knockdown factors | en_US |
dc.subject | cylindrical shells | en_US |
dc.subject | spherical shells | en_US |
dc.title | Knockdown Factors for Buckling of Cylindrical and Spherical Shells Subject to Reduced Biaxial Membrane Stress | en_US |
dc.type | Journal Article | en_US |
dc.description.version | Accepted Manuscript | en_US |
dc.relation.journal | International Journal of Solids and Structures | en_US |
dash.depositing.author | Hutchinson, John W. | |
dc.date.available | 2010-06-15T14:05:05Z | |
dc.identifier.doi | 10.1016/j.ijsolstr.2010.02.009 | * |
dash.contributor.affiliated | Hutchinson, John | |