Verification of Indirect Tensile Strength of Weathered Mudstone from H-Ometer Test Using Sigma/W Model
This study presents the findings determine of a comparative study to indirect tensile strength from H-Ometer test and finite element method. H-Ometer tests were carried out on weathered mudstone specimens on the axial model. Two-dimensional plane strain analysis using SIGMA/W Finite Element Metho...
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| Main Author: | |
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| Format: | Thesis |
| Language: | English English |
| Published: |
2002
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| Subjects: | |
| Online Access: | http://psasir.upm.edu.my/id/eprint/12082/1/FK_2002_48.pdf |
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| Summary: | This study presents the findings determine of a comparative study to indirect
tensile strength from H-Ometer test and finite element method. H-Ometer tests were
carried out on weathered mudstone specimens on the axial model. Two-dimensional
plane strain analysis using SIGMA/W Finite Element Method was carried out to
simulate the performance of H-Ometer test on the axial model. The relationship
between indirect tensile strength of the H-Ometer Test and Finite Element Method for
weathered mudstones are presented. The H-Ometer results on axial model specimens
showed the average indirect tensile strength is 0.102 MPa and the finite element
analysis is 0.116 MPa. Consistently, results of both methods indicate that indirect
tensile strength from the finite element method is slightly higher compared to the H-Ometer
test. It is proposed that the relationship between indirect tensile strength from
H-Ometer test and finite element method is O'FE = 1.132 O'HO where O'HO is tensile
strength from H-Ometer test and O'FE is indirect tensile strength from finite element
method. From the statically analysis the results show a good relationship between H-Ometer
test and finite element method in indicating that the related parameters can be
used to predict the indirect tensile strength of weak rock. |
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