Volume 8 Issue 4 - July 2017

  • 1. Geometric nonlinear behavior of shallow shells by boundary conditions

    Authors : Prof Kanggeun Park, Phd Dongwoo Lee, Architect Dongil Choe, Prof. Mijin Park

    Pages : 133-139

    DOI : http://dx.doi.org/10.21172/1.84.20

    Keywords : Geometric Nonlinear Behavior, Shallow Shells, Displacement Control, Snap Back and Through Curve

    Abstract :

    This paper is to investigate the geometrical nonlinear behavior of shallow shells for boundary conditions of support. The shallow shells with a low rise-span ratio have a snap back and through behavior for a load condition or a support condition. The shells with all its edges hinged or fixed support condition are subjected to a concentrated load at the crown. The load is applied gradually by incrementing the displacement by displacement control. The objective of this study is to compare the load deflection curves according to support conditions or thicknesses. The element in analysis used 3-D four/eight nodes shell element and 3-D liminated shell element. In geometric nonlinear behavior of shallow shells, it is observed for snap back and through behavior for hinged support, and shells with the fixed support is not found out the snap through curve. The snap through phenomenon is a important part for the estimation of structural stability, we can design the shells with more good shape from the geometric nonlinear analysis.

    Citing this Journal Article :

    Prof Kanggeun Park, Phd Dongwoo Lee, Architect Dongil Choe, Prof. Mijin Park , "Geometric nonlinear behavior of shallow shells by boundary conditions", https://www.ijltet.org/journal_details.php?id=918&j_id=3843, Volume 8 Issue 4 - July 2017, 133-139, #ijltetorg