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

Autor(es)

Soares, Henrique Barbosa ^[1] ; Paccola, Rodrigo Ribeiro ^[1] ; Coda, Humberto Breves ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Sao Carlos Sch Engn, Dept Struct Engn, Av Trabalhador Sao Carlense 400, BR-13566590 Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ENGINEERING STRUCTURES; v. 246, NOV 1 2021.
• Citações Web of Science: 0

Resumo

In this study, we develop and propose a finite element (Box Element) designed specially to improve the shellbased 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. (AU)

• Processo FAPESP: 18/19288-8 - Desenvolvimento de ferramenta computacional para análise de colapso estrutural pelo método dos elementos finitos posicional
• Beneficiário: Henrique Barbosa Soares
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 20/05393-4 - Ferramentas numéricas para análise de estruturas considerando materiais avançados
• Beneficiário: Humberto Breves Coda
• Modalidade de apoio: Auxílio à Pesquisa - Regular