TY  - BOOK
AU  - Yonezawa,Hiroshi
AU  - Worsak Kanok-Nukulchai,
AU  - Maekawa,Koichi
AU  - Pennung Warnitchai,
TI  - Investigation of the Wagner hypothesis by degenerated thin-walled elements
T2  - Thesis
PY  - 1992///
CY  - Bangkok
PB  - Asian Institute of Technology
KW  - Thin-walled structures
N1  - A thesis submitted in partial fulfillment of the requirements for the degree of Master of  Engineering, School of Civil Engineering; Thesis (M.Eng.) - Asian Institute of Technology, 1992
N2  - Thin-walled structural members can be used in many ways. When they are employed as  columns, they are subjected to buckling by torsion and flexure. In the buckling analysis of  thin-walled members, the "Wagner hypothesis" has generally been accepted. But after Ojalvo  rejected this theory by presenting his new theory without Wagner's hypothesis, many researches  made efforts to settle the dispute on the validity of Wagner's hypothesis.  In this study, many arbitrary shapes of cross sections were examined in order to identify  conditions under which the theory using Wagner hypothesis are and are not applicable. To  demonstrate the difference between the two theories, lateral buckling and combined flexural  torsional buckling were investigated. Solving problems of stability of structural members  requires a six-node degenerate finite element for geometrically linear and non-linear analysis of  thin-walled structures to be developed. This is due to the fact that the stiffness formulation of  this element does not invoke the Wagner Hypothesis. The result of the present analysis should  establish a valid basis for comparing the two theories
UR  -  http://203.159.5.9/ait-thesis/detail.php?q=B16928
ER  -