Exact stiffness matrix for twisted helix beam
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
|Journal / Publication||Finite Elements in Analysis and Design|
|Publication status||Published - Apr 1991|
|Link to Scopus||https://www.scopus.com/record/display.uri?eid=2-s2.0-0026137541&origin=recordpage|
Natural shape functions are derived for curved and twisted beam finite elements including shear deformation. Natural shape functions are exact solutions of the governing equations subject to boundary forces only. Rigid-body modes are completely satisfied and all complications associated with curved finite elements by assumed shaped functions, parametric transformation, and numerical integration are eliminated. The formulation of the stiffness matrix is given in detail. © 1991.