Paper Title:
How to Determine the Dynamic Fracture Energy of Concrete. Theoretical Considerations and Experimental Evidence
  Abstract

Data on the dynamic fracture energy of concrete are scarce and also not consistent due to different test methods, data analyses and definitions. In [1] the authors summarized and evaluated the test methods. Suggestions for the standardization of dynamic tensile testing were given. In the current paper the discussion is continued. First, definitions for the fracture energy and the relevant parameters are given. Next, theoretical considerations are given for the different rate dependency regimes of the dynamic tensile strength. Fracture and damage mechanics form the basis for the theoretical modeling. Based on the same principles, it is shown that the enhancement of the fracture energy occurs at higher loading rates than for the tensile strength. Phenomenological models to quantify the dynamic fracture energy are still lacking. To quantify the dynamic fracture energy, uniaxial test conditions are required. The Hopkinson bar technique meets this requirement. The paper presents and evaluates available data and relates these to the theoretical considerations.

  Info
Periodical
Chapter
Chapter 1: Performance of Materials
Edited by
Ezio Cadoni and Marco di Prisco
Pages
51-56
DOI
10.4028/www.scientific.net/AMM.82.51
Citation
J. Weerheijm, I. Vegt, "How to Determine the Dynamic Fracture Energy of Concrete. Theoretical Considerations and Experimental Evidence", Applied Mechanics and Materials, Vol. 82, pp. 51-56, 2011
Online since
July 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: J. Weerheijm
Abstract:The rate effect on concrete tensile strength can be modeled by the description of crack extension in a fictitious fracture plane [1,2].The...
991
Authors: Jan G.M. van Mier, Dominik Meyer, Hau Kit Man
Abstract:Fracture under compression is one of the most commonly studied properties of geomaterials like concrete and rock, in particular since these...
207
Authors: Zhi Fang Zhao, Qiu Yu Wang, Zhi Hua Yang, Yang Yang
Chapter 1: Civil Engineering
Abstract:The softening curves of four groups specimens with different sizes were obtained by inverse analysis based on the fictitious crack...
64
Authors: Cui Fang Duan, Wei Li, Ji Liang Zhang
Chapter 4: Material Engineering and its Application Technology
Abstract:This article studies aluminum alloy plate through 16 to 3mm thick with a hole under room temperature fracture test. The experimental results...
315
Authors: Hai Tao Tan, Wu Yao, Xiao Ming Song, Shuai Dong
Abstract:The ultimate load, fracture energy and equivalent bending strength of hybrid steel fiber reinforced mortar were investigated with a constant...
99