Modeling of mechanical behavior of PTFE

• Grant number: 12/25374-8
• Support type: Scholarships abroad - Research Internship - Scientific Initiation
• Effective date (Start): March 01, 2013
• Effective date (End): June 30, 2013
• Field of knowledge: Engineering - Mechanical Engineering - Mechanics of Solids
• Principal researcher: Rodrigo Bresciani Canto
• Grantee: Vinicius Fiocco Sciuti
• Supervisor abroad: Nicolas Pierre Schmitt
• Home Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
• Research place: Laboratoire de Mécanique et Technologie (LMT Cachan), France
• Associated to the scholarship: 12/10319-1 - Mechanical behavior of polytetrafluoroethylene (PTFE) in tensile and compressive tests at different strain rates., BP.IC

Abstract

The aim of this research project is the modeling of the mechanical behavior of polytetrafluoroethylene (PTFE). This study is part of a larger scientific project that aims to develop theoretical models for the simulation of the PTFE processing (compaction and sintering) and its in-service mechanical behavior, supported by an international cooperation program (Capes-Cofecub 641-09) among researchers from LMT-Cachan (France), EESC-USP and DEMa-UFSCar. Uniaxial tensile and compressive mechanical tests at different strain rates have been performed using digital image correlation technique (DIC). The results will be used to characterize the mechanical behavior at the specified conditions and identify a model to be used for in-service numerical simulation. The comparison between the theoretical model and the non-uniform strain fields at compact tension specimens (ASTM, 2011), also mesureds by DIC, will provide the model validation. Finally, the comparison will be improved by the employ of programming languages like MatlabTM and PythonTM, what will be helpfull for future works whose search consists in the material behavior study at diferent conditions. (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)

DE MELO, CAIUD CALDEIRA; MACEDO, SALVINO; SCIUTI, VINICIUS FIOCCO; CANTO, RODRIGO BRESCIANI. A novel mechanical test for the stress relaxation analysis of polymers. Polymer Testing, v. 73, p. 276-283, FEB 2019. Web of Science Citations: 0.

SCIUTI, VINICIUS FIOCCO; MELO, CAIUA CALDEIRA; CANTO, LEONARDO BRESCIANI; CANTO, RODRIGO BRESCIANI. Influence of Surface Crystalline Structures on DSC Analysis of PTFE. MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS, v. 20, n. 5, p. 1350-1359, SEP-OCT 2017. Web of Science Citations: 1.