Development of a computational tool for structural collapse analysis by the positional finite element method

• Grant number: 18/19288-8
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: April 01, 2019
• End date: September 30, 2021
• Field of knowledge: Engineering - Civil Engineering - Structural Engineering
• Principal Investigator: Rodrigo Ribeiro Paccola
• Grantee: Henrique Barbosa Soares
• Host Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil

Abstract

This research project aims to better understand and model the phenomena associated with the collapse of structures constituted by thin-walled structural elements. For this purpose, taking advantage of previous developments performed during the candidate's master's program, we intend to develop a very advanced computational tool for the analysis of the collapse of structures, especially of buildings. Original contributions include: (i) the creation of flexible linkage between general thin-walled bars; and between general bars and the shells constituting the slabs and (ii) the development of vertical penalty elements to consider the impact between the slab panels in the structural collapse model. The degree of difficulty of the proposal is high as we consider non-linear geometric analysis, non-linear physical analysis and dynamics of structures. The feasibility of the proposal is based on the candidate's master's degree developments that resulted in the base code for this proposal, and also the availability of equipment with adequate processing capacity for the intended analyses. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

SOARES, HENRIQUE BARBOSA; PACCOLA, RODRIGO RIBEIRO; CODA, HUMBERTO BREVES. A Box element to model semi-rigid connections in shell-based thin-walled structures analysis. ENGINEERING STRUCTURES, v. 246, NOV 1 2021. (18/19288-8, 20/05393-4)

SOARES, HENRIQUE BARBOSA; PACCOLA, RODRIGO RIBEIRO; CODA, HUMBERTO BREVES. A conjugate modal force strategy for instability analysis of thin-walled structures: an unconstrained vector positional finite element approach. LATIN AMERICAN JOURNAL OF SOLIDS AND STRUCTURES, v. 18, n. 2, 2021. (20/05393-4, 18/19288-8)