Discrete Model for Concrete Fracture: Numerical Study of Dynamic Response
The contribution presents simulations on concrete specimens. The discrete meso-scale particle model with random geometry based on Voronoi tessellation is used. The model was enhanced with dynamic solver based on implicit Newmark method. Model is tested on cantilever beam loaded by a force at the fre...
Main Authors: | , |
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Format: | Article |
Language: | English |
Published: |
VŠB-Technical University of Ostrava, Faculty of Civil Engineering
2016-12-01
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Series: | Transactions of the VŠB: Technical University of Ostrava, Civil Engineering Series |
Subjects: | |
Online Access: | http://www.degruyter.com/view/j/tvsb.2016.16.issue-2/tvsb-2016-0020/tvsb-2016-0020.xml?format=INT |
Summary: | The contribution presents simulations on concrete specimens. The discrete meso-scale particle model with random geometry based on Voronoi tessellation is used. The model was enhanced with dynamic solver based on implicit Newmark method. Model is tested on cantilever beam loaded by a force at the free end to verify the ability of the model to simulate the dynamic behavior of a simple linear elastic material. Results computed with different time discretization and model settings are compared. The behavior of the model in nonlinear regime is investigated on concrete specimens loaded at different displacement rates. The constitutive law used within this contribution is insensitive to strain rate. |
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ISSN: | 1804-4824 |