Finite element analysis of concrete members using new techniques to model reinforcement and fibers

• Grant number: 15/18336-0
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: November 01, 2015
• End date: June 30, 2017
• Field of knowledge: Engineering - Civil Engineering - Structural Engineering
• Principal Investigator: Osvaldo Luís Manzoli
• Grantee: Marcela Gimenes
• Host Institution: Faculdade de Engenharia (FE). Universidade Estadual Paulista (UNESP). Campus de Bauru. Bauru , SP, Brazil

Abstract

It is intended to contribute to the development of a new technique to introduce the effects of reinforcements in the matrix finite element mesh of composite materials, considering the adherence behavior. This technique consists of the creation and introduction of three types of finite elements in an existing mesh: reinforcing, interface, and compatibilization elements. The compatibilization elements have the unique function of matching the nodal displacements of reinforcing elements with the internal points of solid elements of the matrix, allowing arbitrary positioning of the reinforcement, independent of the matrix finite element mesh. The aim is to validate the technique through modeling of several problems of concrete members, using a computational program developed by the research group to introduce the special reinforcement elements in the basic numeric model, previously constructed in a conventional way, only with the matrix solid finite elements.