Computation of average properties in composites under imperfect contact conditions at the fiber-matrix interfaces

• Grant number: 12/03645-0
• Support Opportunities: Research Grants - Visiting Researcher Grant - International
• Start date: June 15, 2012
• End date: July 14, 2012
• Field of knowledge: Engineering - Aerospace Engineering - Aerospace Structures
• Principal Investigator: Volnei Tita
• Grantee: Volnei Tita
• Visiting researcher: Reinaldo Rodriguez-Ramos
• Visiting researcher institution: Universidad de La Habana (UH), Cuba
• Host Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil

Abstract

The purpose of this visit is to combine recent scientific results developed in the Group of Solids Mechanics, Faculty of Mathematics and Computer Science of the University of Havana by Professor J. Bravo-Castillero, R. Guinovart-Diaz, J. A. Otero, J. C. Lopez-Realpozo and R. Rodriguez-Ramos related to the derivation of semi-analytical expressions for the effective properties of fiber reinforced composites using AHM with the recognized theoretical and practical experience of Professor Volnei Tita (Department of Aeronautical Engineering, Engineering School of São Carlos, University of São Paulo, São Carlos, SP, Brazil) and co-workers, in the numerical simulation and computational implementation using FEM for the analysis of properties in composites. Besides, Prof. Rodriguez-Ramos' visit will be very important to explore the necessary fundaments and assumptions used in both approaches (AHM and FEM) for the calculations of the average properties. A methodology for the analysis of overall properties in composites with anisotropic structures will be set up and the study of its possible extension to smart composites such as piezoelectric materials or magneto piezoelectric media will be analyzed. Thus, it is important to apply this methodology to heterogeneous materials having piezoelectric/magneto-electro-elastic properties and to study their behavior under imperfect regime at the matrix-fiber interface. The development of this methodology in co-operation, not only, will allow the behavior prediction of new materials with better global properties for the design of efficient devices, but also, strength the interactions between Brazilian and Cuban researchers. Therefore, this visit will contribute for different research projects. (AU)

Scientific publications

(5)

(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)

FLOR, FELIPE RENDEIRO; DE MEDEIROS, RICARDO; TITA, VOLNEI. Numerical and Experimental Damage Identification in Metal-Composite Bonded Joint. JOURNAL OF ADHESION, v. 91, n. 10-11, SI, p. 863-882, 2015. (12/01047-8, 12/03645-0)

TITA, VOLNEI; DE MEDEIROS, RICARDO; MARQUES, FLAVIO D.; MORENO, MARIANO E.. Effective properties evaluation for smart composite materials with imperfect fiber-matrix adhesion. JOURNAL OF COMPOSITE MATERIALS, v. 49, n. 29, p. 3683-3701, DEC 2015. (12/01047-8, 12/03645-0)

DE MEDEIROS, RICARDO; RODRIGUEZ-RAMOS, REINALDO; GUINOVART-DIAZ, RAUL; BRAVO-CASTILLERO, JULIAN; OTERO, JOSE A.; TITA, VOLNEI. Numerical and analytical analyses for active fiber composite piezoelectric composite materials. Journal of Intelligent Material Systems and Structures, v. 26, n. 1, p. 101-118, JAN 2015. (12/01047-8, 12/03645-0)

FLOR, FELIPE RENDEIRO; DE MEDEIROS, RICARDO; TITA, VOLNEI. Numerical and Experimental Damage Identification in Metal-Composite Bonded Joint. JOURNAL OF ADHESION, v. 91, n. 10-11, p. 20-pg., 2015-01-01. (12/03645-0, 12/01047-8)

RODRIGUEZ-RAMOS, REINALDO; DE MEDEIROS, RICARDO; GUINOVART-DIAZ, RAUL; BRAVO-CASTILLERO, JULIAN; OTERO, JOSE ANTONIO; TITA, VOLNEI. Different approaches for calculating the effective elastic properties in composite materials under imperfect contact adherence. COMPOSITE STRUCTURES, v. 99, p. 264-275, MAY 2013. (09/00544-5, 12/03645-0)