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https://hdl.handle.net/11681/32547| Title: | A multiscale meshfree approach to modeling damage of Cor-Tuf without fibers using fracture energy experiments |
| Authors: | Sherburn, Jesse A. Heard, William F. Williams, Brett A. Sparks, Paul A. |
| Keywords: | High strength concrete Continuum damage mechanics Multiscale modeling Ultra-high-performance concrete Constitutive modeling Fracture energy experiments Fracture mechanics |
| Publisher: | Geotechnical and Structures Laboratory (U.S.) Engineer Research and Development Center (U.S.) |
| Series/Report no.: | Technical Report (Engineer Research and Development Center (U.S.)) ; no. ERDC/GSL TR-19-12 |
| Abstract: | Many continuum damage mechanics models for cementitious materials are typically phenomenological in design. Recent work has shown that a physics-based multiscale approach to modeling damage is efficient and effective. In order to use a multiscale approach, appropriate experimental data are necessary to model the microscale calculations that will then inform the continuum-scale calculations. This work uses the multiscale approach and experimentally determines the parameters necessary to model the microscale calculations. Notched three-point beam experiments were performed to determine the fracture energy of the ultra-high performance concrete known as Cor-Tuf. The fracture energy is then used by a simplified microscale calculation to determine a physics-based damage evolution equation that can be used in continuum-scale calculations. A meshfree method is used to show the usefulness of the newly determined damage evolution equation. Both a quasi-static application and a dynamic application are shown as examples. |
| Description: | Technical Report |
| Gov't Doc #: | ERDC/GSL TR-19-12 |
| Rights: | Approved for Public Release; Distribution is Unlimited |
| URI: | https://hdl.handle.net/11681/32547 http://dx.doi.org/10.21079/11681/32547 |
| Size: | 39 pages / 6.889 Mb |
| Appears in Collections: | Technical Report |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| ERDC-GSL TR-19-12.pdf | 7.05 MB | Adobe PDF |  View/Open |