| Full text | |
| Author(s): |
Uliana, Joao H.
;
Braz, Guilherme A.
;
Oliveira, everton L.
;
Araujo-Ferreira, Arthur G.
;
Morais, Mateus M.
;
Trevizan, Willian A.
;
Fortulan, Carlos A.
;
Bonagamba, Tito J.
;
Pavan, Theo Z.
;
Carneiro, Antonio A. O.
Total Authors: 10
|
| Document type: | Journal article |
| Source: | Journal of the Brazilian Society of Mechanical Sciences and Engineering; v. 46, n. 10, p. 11-pg., 2024-10-01. |
| Abstract | |
The porosity of materials influences several physical parameters, such as resistance to fractures, thermal conductivity, and fluid flow permeability. The quantification of porosity is important in various fields, ranging from industry to biomedicine. Although various techniques are available to quantify porosity in laboratory environments, its analysis applied in the context of nondestructive tests in industry or biomedical protocols can be challenging. To contribute to the development of alternative methods for measuring the porosity of a material, this paper investigated the feasibility of using vibroacoustography, a low-cost, nondestructive, and noncontact technique, to estimate the porosity of rock samples. The study examined the vibroacoustic response as a function of porosity in synthetic ceramic samples produced using the same material with controlled porosity percentages. Then, the vibroacoustography technique was applied to a realistic case of sandstone rocks with varying porosities. The results showed that the new protocol can be used to estimate the porosity as it demonstrates a relationship between the amplitude of vibroacoustic signals and the porosity of rock samples. These findings could be valuable in exploring and characterizing oil reservoir rocks. (AU) | |
| FAPESP's process: | 09/54880-6 - Manipulation of nuclear spins by magnetic and quadrupole resonance techniques |
| Grantee: | Tito José Bonagamba |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 18/16939-8 - Development and implementation of novel acoustic, magnetic and optical techniques for diagnostic and therapeutic applications |
| Grantee: | Antonio Adilton Oliveira Carneiro |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 20/00010-0 - Combining new forests attributes, structure and functions with the perception of their contributions to ecosystem services |
| Grantee: | Vitoria Duarte Derisso |
| Support Opportunities: | Scholarships in Brazil - Technical Training Program - Technical Training |