Hochdynamische Materialeigenschaften von Ultrahochleistungsbeton (UHPC)
Author(s): |
M. Nöldgen
O. Millon K. Thoma E. Fehling |
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Medium: | journal article |
Language(s): | German |
Published in: | Beton- und Stahlbetonbau, November 2009, n. 11, v. 104 |
Page(s): | 717-727 |
DOI: | 10.1002/best.200900038 |
Abstract: |
Material Properties of Ultra High Performance Concrete (UHPC) at High Strain RatesThe presented paper is a contribution to the material description of Ultra High Performance Concrete (UHPC) under high-speed dynamical loading conditions. Based on a series of Hopkinson-Bar experiments dynamical material parameters such as the Tensile Strength, Young's Modulus and Fracture Energy are derived at high strain rates of 10m² · s-1. A comparison with the results of these parameters for normal and high strength concrete leads to a qualitative and quantitative evaluation of UHPC at high strain rates. With the extension of the established RHT material model for UHPC by the material's Fracture Energy and Stress-Crack-Opening-Relation the Hopkinson-Bar experiments are simulated appropriately. |
Keywords: |
Hopkinson-Bar dynamic increase factor damage mechanics
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Available from: | Refer to publisher |
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data sheet - Reference-ID
10062291 - Published on:
19/11/2010 - Last updated on:
13/08/2014