Quasi-static and dynamic experimental studies on the tensile strength and failure pattern of concrete and mortar discs.
As concrete and mortar materials widely used in structural engineering may suffer dynamic loadings, studies on their mechanical properties under different strain rates are of great importance. In this paper, based on splitting tests of Brazilian discs, the tensile strength and failure pattern of con...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Journal Article |
| Published: |
Nature Publishing Group
2017
|
| Online Access: | http://hdl.handle.net/20.500.11937/58528 |
| _version_ | 1848760282869923840 |
|---|---|
| author | Jin, X. Hou, C. Fan, X. Lu, Chunsheng Yang, H. Shu, X. Wang, Z. |
| author_facet | Jin, X. Hou, C. Fan, X. Lu, Chunsheng Yang, H. Shu, X. Wang, Z. |
| author_sort | Jin, X. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | As concrete and mortar materials widely used in structural engineering may suffer dynamic loadings, studies on their mechanical properties under different strain rates are of great importance. In this paper, based on splitting tests of Brazilian discs, the tensile strength and failure pattern of concrete and mortar were investigated under quasi-static and dynamic loadings with a strain rate of 1-200?s(-1). It is shown that the quasi-static tensile strength of mortar is higher than that of concrete since coarse aggregates weaken the interface bonding strength of the latter. Numerical results confirmed that the plane stress hypothesis lead to a lower value tensile strength for the cylindrical specimens. With the increase of strain rates, dynamic tensile strengths of concrete and mortar significantly increase, and their failure patterns change form a single crack to multiple cracks and even fragment. Furthermore, a relationship between the dynamic increase factor and strain rate was established by using a linear fitting algorithm, which can be conveniently used to calculate the dynamic increase factor of concrete-like materials in engineering applications. |
| first_indexed | 2025-11-14T10:13:18Z |
| format | Journal Article |
| id | curtin-20.500.11937-58528 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:13:18Z |
| publishDate | 2017 |
| publisher | Nature Publishing Group |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-585282017-11-24T05:45:54Z Quasi-static and dynamic experimental studies on the tensile strength and failure pattern of concrete and mortar discs. Jin, X. Hou, C. Fan, X. Lu, Chunsheng Yang, H. Shu, X. Wang, Z. As concrete and mortar materials widely used in structural engineering may suffer dynamic loadings, studies on their mechanical properties under different strain rates are of great importance. In this paper, based on splitting tests of Brazilian discs, the tensile strength and failure pattern of concrete and mortar were investigated under quasi-static and dynamic loadings with a strain rate of 1-200?s(-1). It is shown that the quasi-static tensile strength of mortar is higher than that of concrete since coarse aggregates weaken the interface bonding strength of the latter. Numerical results confirmed that the plane stress hypothesis lead to a lower value tensile strength for the cylindrical specimens. With the increase of strain rates, dynamic tensile strengths of concrete and mortar significantly increase, and their failure patterns change form a single crack to multiple cracks and even fragment. Furthermore, a relationship between the dynamic increase factor and strain rate was established by using a linear fitting algorithm, which can be conveniently used to calculate the dynamic increase factor of concrete-like materials in engineering applications. 2017 Journal Article http://hdl.handle.net/20.500.11937/58528 10.1038/s41598-017-15700-2 Nature Publishing Group unknown |
| spellingShingle | Jin, X. Hou, C. Fan, X. Lu, Chunsheng Yang, H. Shu, X. Wang, Z. Quasi-static and dynamic experimental studies on the tensile strength and failure pattern of concrete and mortar discs. |
| title | Quasi-static and dynamic experimental studies on the tensile strength and failure pattern of concrete and mortar discs. |
| title_full | Quasi-static and dynamic experimental studies on the tensile strength and failure pattern of concrete and mortar discs. |
| title_fullStr | Quasi-static and dynamic experimental studies on the tensile strength and failure pattern of concrete and mortar discs. |
| title_full_unstemmed | Quasi-static and dynamic experimental studies on the tensile strength and failure pattern of concrete and mortar discs. |
| title_short | Quasi-static and dynamic experimental studies on the tensile strength and failure pattern of concrete and mortar discs. |
| title_sort | quasi-static and dynamic experimental studies on the tensile strength and failure pattern of concrete and mortar discs. |
| url | http://hdl.handle.net/20.500.11937/58528 |