Título: | EXPERIMENTAL STUDY OF THE DETERMINATION OF THE TENSILE STRENGTH OF ROCKS | ||||||||||||
Autor: |
ANA CAROLINA DIAS BAESSO |
||||||||||||
Colaborador(es): |
EURIPEDES DO AMARAL VARGAS JUNIOR - Orientador |
||||||||||||
Catalogação: | 20/MAR/2023 | Língua(s): | PORTUGUESE - BRAZIL |
||||||||||
Tipo: | TEXT | Subtipo: | THESIS | ||||||||||
Notas: |
[pt] Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio. [en] All data contained in the documents are the sole responsibility of the authors. The data used in the descriptions of the documents are in conformity with the systems of the administration of PUC-Rio. |
||||||||||||
Referência(s): |
[pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=62006&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=62006&idi=2 |
||||||||||||
DOI: | https://doi.org/10.17771/PUCRio.acad.62006 | ||||||||||||
Resumo: | |||||||||||||
The tensile strength of rocks is of great importance in many engineering and
geophysical applications. Considered a key parameter in rock mechanics projects, its
determination in the laboratory has been discussed for years by many researchers with
two strands: the direct tensile test, considered the ideal and most realistic, has its
credibility compromised due to the possibility of altering the final result involving its
poor execution, on the other hand, the indirect tests, due to practicality, spread around
the world, however, a scientific community does not ignore such deficiencies
involving the results. Thus, from this scenario, this work brings the construction of a
compression to tension load converter (CTC), which allows the determination of the
tensile strength of the rocks in a direct and reliable way. A numerical analysis was
necessary to determine the ideal geometry of the specimen. Uniaxial compression
tests, brazilian tests and direct tensile strength tests (CTC), were perfomed in
syenogranites from Cachoeiro de Itapemirim-ES, in order to compare the results
obtained with the literature data. The results showed that, the load converter has a
good performance according to the proposed objectives, the samples broke due to
pure tensile in the center of the halter-shaped specimen, and as evidenced, for all
tested rock samples, to the direct tensile strength are clearly lower than the indirect
tensile strength.
|
|||||||||||||
|