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|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
Fracture energy experiments
|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.|
|Gov't Doc #:||ERDC/GSL TR-19-12|
|Rights:||Approved for Public Release; Distribution is Unlimited|
|Size:||39 pages / 6.889 Mb|
|Appears in Collections:||Technical Report|
Files in This Item:
|ERDC-GSL TR-19-12.pdf||7.05 MB||Adobe PDF|