Comportement post-critique des poutres élastoplastiques: existence et régularité des branches bifurquées

✍ Scribed by Abdelmajid El Koulani; Alain Léger

• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 517 KB
• Volume: 324
• Category: Article
• ISSN: 0764-4442
• DOI: 10.1016/s0764-4442(99)80418-2

✦ Synopsis

Probkmes mathematiques de la mCcanique/Mafhemafkaical Problems in Mechanics

A bridged English Version

This Note deals with elastoplastic post-buckling analysis. In a previous Note (see [5]), we established the following results for the non-uniqueness of the velocity answer of an elastic-plastic compressed beam from an actual state on the fundamental branch, that is {V(Z), A} E (0, A}, where II is the bending displacement and X the loading parameter: THEOREM 1. -Let XT, An, XF: the &wicul critical loads of the so-caiied tangent modulus, reduced modulus and Young modulus ,for a compressed beam of uniform cross-section. Then: Note pr&entCe par Huy DUONG Brx