E3S Web Conf.
Volume 281, 2021IV International Scientific Conference “Construction and Architecture: Theory and Practice of Innovative Development” (CATPID-2021 Part 1)
|Number of page(s)||6|
|Section||Computational Methods, Mathematical Models and Information Technology in Construction|
|Published online||02 July 2021|
Hybrid finite element formulation for geometrically nonlinear buckling analysis of truss with initial length imperfection
Faculty of Civil Engineering,Hanoi Architectural University, Km 10, Nguyentrai, Hanoi, Vietnam
* Corresponding author: email@example.com
This paper presents a novel hybrid FEM-based approach for nonlinear buckling analysis of truss with initial length imperfection. The contribution deals with establishing two types of truss finite element (perfection and imperfection element) considering large displacement based on displacement formulation and mixed formulation. Therefore, the hybrid global equation system is developed by assembling perfection and imperfection truss elements. The incremental-iterative algorithm based on the arc-length method is used to establish calculation programs for solving geometrically nonlinear buckling analysis of truss with initial length imperfection. Using a written calculation program, the numerical test is presented to investigate the equilibrium path for plan truss with initial member length imperfection.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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