{"id":61,"date":"2024-01-14T11:37:41","date_gmt":"2024-01-14T11:37:41","guid":{"rendered":"http:\/\/hweb-x-0-fe-03.fe.cpd.local\/elle\/?page_id=61"},"modified":"2024-01-14T11:37:41","modified_gmt":"2024-01-14T11:37:41","slug":"basil","status":"publish","type":"page","link":"https:\/\/www.ub.edu\/elle\/development\/basil\/","title":{"rendered":"Basil"},"content":{"rendered":"<p><strong><a href=\"http:\/\/earth.leeds.ac.uk\/%7Egreg\/basil\/\">Basil<\/a> <\/strong>homepage at Leeds University<\/p>\n<p>Basil is a finite element program which calculates quantities which describe\u00a0 stress\u00a0 and strain in non-linear viscous materials, for strains up to the of order 100%.\u00a0\u00a0 The calculations\u00a0 describe\u00a0 very\u00a0 viscous\u00a0 Earth materials which undergo irreversible large-strain deformation at\u00a0 high\u00a0 temperature\u00a0 and over long time periods, under the influence of body forces and surface tractions.<\/p>\n<p>The program permits a spatially variable Newtonian\u00a0 or\u00a0 non-Newtonian\u00a0 viscosity\u00a0 in a 2-D geometry with boundary conditions on traction and\/or velocity.\u00a0 It is also\u00a0 possible\u00a0 to include\u00a0 a single fault or discontinuity in the problem in a dynamically self consistent way.\u00a0 The 2-D deformation\u00a0 field represents\u00a0 either plane-strain deformation, or it permits a specified distribution of normal stress in the third\u00a0 direction.\u00a0\u00a0 The\u00a0 latter is referred to as the thin viscous sheet formulation when the normal force is due to\u00a0 gravity\u00a0 acting on variations of the layer thickness.\u00a0 Plane-stress calculations are a specific case of the thin viscous sheet formulation.<\/p>\n<p>The programs basil and sybil have been developed\u00a0 mainly\u00a0 at Monash\u00a0 University\u00a0 since\u00a0 1988,\u00a0 and before that at ANU and Harvard.\u00a0 The present set of\u00a0 programs\u00a0 has\u00a0 been\u00a0 developed mainly\u00a0 by\u00a0 <a href=\"http:\/\/earth.leeds.ac.uk\/%7Egreg\">Greg\u00a0 Houseman<\/a>,\u00a0Terence\u00a0 Barr\u00a0 and\u00a0 Lynn Evans.\u00a0 Important contributions by others,\u00a0 particularly\u00a0 by\u00a0 Philip England\u00a0 during\u00a0 the\u00a0 early stages of development are gratefully acknowledged.\u00a0 Comments on, or questions about,\u00a0 basil and sybil should be sent to <a href=\"mailto:greg@earth.leeds.ac.uk\">greg@earth.leeds.ac.uk<\/a><\/p>\n<p>A User Manual which gives background theory and worked examples\u00a0 of\u00a0 finite\u00a0 deformation problems solved using basil is under development.<\/p>\n<p><span class=\"modifydate\"> Last Updated on Wednesday, 05 July 2006 18:33 <\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Basil homepage at Leeds University Basil is a finite element program which calculates quantities which describe\u00a0 stress\u00a0 and strain in non-linear viscous materials, for strains up to the of order 100%.\u00a0\u00a0 The calculations\u00a0 describe\u00a0 very\u00a0 viscous\u00a0 Earth materials which undergo irreversible large-strain deformation at\u00a0 high\u00a0 temperature\u00a0 and over long time periods, under the influence of [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":59,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-61","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.ub.edu\/elle\/wp-json\/wp\/v2\/pages\/61","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ub.edu\/elle\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.ub.edu\/elle\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.ub.edu\/elle\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ub.edu\/elle\/wp-json\/wp\/v2\/comments?post=61"}],"version-history":[{"count":1,"href":"https:\/\/www.ub.edu\/elle\/wp-json\/wp\/v2\/pages\/61\/revisions"}],"predecessor-version":[{"id":62,"href":"https:\/\/www.ub.edu\/elle\/wp-json\/wp\/v2\/pages\/61\/revisions\/62"}],"up":[{"embeddable":true,"href":"https:\/\/www.ub.edu\/elle\/wp-json\/wp\/v2\/pages\/59"}],"wp:attachment":[{"href":"https:\/\/www.ub.edu\/elle\/wp-json\/wp\/v2\/media?parent=61"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}