Abstract
© 2016 Elsevier Ltd. Maximum loads of notched three-point-bend specimens with constant height are used to determine the tensile strength and fracture toughness of concrete. Normally the tensile strength and fracture toughness cannot be obtained from small three-point-bend specimens because of the highly heterogeneous composite structures of concrete and formation of fictitious crack prior to the maximum load. A simple fracture model is established, linking fictitious crack to the maximum aggregate size so that the concrete structure and fictitious crack formation can be considered together. Maximum loads of three-point-bend specimens with different initial notches containing different influence of the tensile strength and fracture toughness are then analyzied.
| Original language | English |
|---|---|
| Pages (from-to) | 67-77 |
| Journal | Engineering Fracture Mechanics |
| Volume | 160 |
| Early online date | 5 Apr 2016 |
| DOIs | |
| Publication status | Published - Jul 2016 |
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Cite this
Wang, Y., Hu, X., Liang, L., & Zhu, W. (2016). Determination of tensile strength and fracture toughness of concrete using notched 3-p-b specimens. Engineering Fracture Mechanics, 160, 67-77. https://doi.org/10.1016/j.engfracmech.2016.03.036