What is it about?
Studying mechanical properties of concrete under high strain rates in order to characterize it dynamically.
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Why is it important?
To establish an easy and reliable method in order to be able to obtain dynamic mechanical properties of concrete and other brittle materials under high strain rates. This methodology can be applied to obtain important dynamic parameters of concrete such as the dynamic tensile strength and the fracture energy.
Perspectives
In this paper a new configuration of the Modified Hopkinson Bar to perform spalling tests on concrete slabs is proposed. The aim of this initial work is to establish a simple configuration in order to obtain different mechanical parameters of concrete subjected to high strain rates. In this first approach the dynamic tensile strength is obtained. In future works this technique will be employed to derive other important dynamic properties of concrete such us the fracture energy
Victor Rey de Pedraza
UPM
Read the Original
This page is a summary of: Measurement of fracture properties of concrete at high strain rates, Philosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences, December 2016, Royal Society Publishing,
DOI: 10.1098/rsta.2016.0174.
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