A box element to model semi-rigid connections in shell-based thin-walled structures analysis

Autor:	Humberto Breves Coda, Rodrigo Ribeiro Paccola, Henrique Barbosa Soares
Rok vydání:	2021
Předmět:	business.industry Computer science Shell (structure) Stiffness Structural engineering Bending Degrees of freedom (mechanics) Bracing Finite element method ESTRUTURAS Nonlinear system medicine medicine.symptom business Rotation (mathematics) Civil and Structural Engineering
Zdroj:	Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP
Popis:	In this study, we develop and propose a finite element (Box Element) designed specially to improve the shell-based simulation of elastic thin-walled structures. The Box Element (BE) allows a simple and automatic connection between beams and columns, as well as, between slabs and beams. The BE stiffness is assembled by bracing panels immersed in its numerical structure simulating the flexibility of connections. Its formulation is developed using an in house positional FEM code, whose 3D rotation degrees of freedom are replaced by generalized vectors, facilitating bending couplings and large rotation modeling. Instability and geometrical nonlinear path-following analysis are studied in examples, comparing results with literature benchmarks and proposing a practical application.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe719c4bbff76f5cf333f8d33b5ffbd1 Zobrazit plný text záznamu