Development of an equipment that combine experimental methods (physical test) and numerical methods (virtual test) for the determination of the mechanical properties of biomedical materials

• Grant number: 18/22628-5
• Support Opportunities: Research Grants - Innovative Research in Small Business - PIPE
• Start date: August 01, 2019
• End date: July 31, 2020
• Field of knowledge: Engineering - Materials and Metallurgical Engineering
• Principal Investigator: Mardoqueu Martins da Costa
• Grantee: Mardoqueu Martins da Costa
• Company: Biopdi Indústria, Comércio, Importação e Exportação de Equipamentos Médicos Odontológicos Ltda
• CNAE: Fabricação de aparelhos e equipamentos de medida, teste e controle
• City: São Carlos
• Associated researchers: Adriana Pavinatto da Costa ; Nivaldo Antonio Parizotto ; Renata Marques de Melo Marinho

Abstract

Mechanical testing is critical to the area of development of new materials and products mainly for the medical device industry. Conducting tests on materials and products ensures that implants, prostheses, orthotics and devices do not fail when in use, thus ensuring the health and well-being of patients using this type of product. Testing machines that combine axial and torsion testing play an important role in testing the quality of a variety of products as well as representing in a more realistic way the stresses experienced by these materials. The modern materials science employs the use of advanced computational tools to carry out simulations that allow the pre-analysis of the project, evaluating possible failures even before the material is submitted to the manufacturing processes. This practice can be of great value because, with the data obtained, one can direct the project more efficiently and accurately, saving a great deal of time and investment. Thus the main objective of this project is the development of an equipment combining Experimental Methods (Physical Testing) and Numerical Methods (Virtual Testing) for the determination of the mechanical properties of biomedical materials. The development of the equipment is divided into the following stages: Mechanical design, Electronic design, Fixation system and Software. After calibration of the equipment (mechanical precision testing, the load cell calibration and calibration of the torque transducer), validation of mechanical tests are carried out according to the following groups: Group 1 - Tensile Testing (Guidelines: X, Y and Z ), Group 2 - compression test (Directions X, Y and Z), Group 3 - bending test Group 4 - torsion testing (Guidance: X, Y and Z), Group 5 - tensile Testing and concurrent twisting Group 5 - simultaneous compression and torsion testing (Guidance: X, Y and Z), Group 6 - compression Testing and concurrent twisting (Guidelines: X, Y and Z), Group 7 - destructive tests, repeating the conditions of 6 first groups, Group 8 - Reproduction of the tests using the material constants obtained in the first 6 test groups, through finite element analyzes with the commercial software, Group 9 - Reproduction of the tests using the constants of the material obtained in the first 6 test groups, through finite element analyzes with the developed software. Thus, it is expected convergence between physical and virtual testing trials thus validating a device that integrates Experimental Methods and Numerical Methods for obtaining and determining the mechanical properties of biomedical materials. (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)

MATOS, M. D. L. P.; SANTOS, E. N.; SILVA, M. D. C. R. M.; PAVINATTO, A.; COSTA, M. M.; BASTOS-FILHO, TF; CALDEIRA, EMD; FRIZERA-NETO, A. Use of Fluorescence in the Diagnosis of Oral Health in Adult Patients Admitted to the Intensive Care Unit of a Public Emergency Hospital. XXVII BRAZILIAN CONGRESS ON BIOMEDICAL ENGINEERING, CBEB 2020, v. N/A, p. 7-pg., 2022-01-01. (17/19470-8, 18/22628-5, 19/04279-6)