Behavior of Concrete Round Double Beam Fracture Toughness Test Specimens

A.R. Ingraffea, J.H. Hanson (1998). "Behavior of Concrete Round Double Beam Fracture Toughness Test Specimens." In Proceedings of FraMCoS 3, Gifu, Japan.

A.R. Ingraffea, J.H. Hanson. "Behavior of Concrete Round Double Beam Fracture Toughness Test Specimens." Paper presented at FraMCoS 3, Gifu, Japan, 1998.

A.R. Ingraffea, J.H. Hanson, "Behavior of Concrete Round Double Beam Fracture Toughness Test Specimens," in Proc. FraMCoS 3, Gifu, Japan, 1998.

@inproceedings{a-r-ingraffea1998,
  title     = {Behavior of Concrete Round Double Beam Fracture Toughness Test Specimens},
  author    = {A.R. Ingraffea, J.H. Hanson},
  year      = {1998},
  booktitle = {Proceedings of FraMCoS 3},
  address   = {Gifu, Japan},
}

TY  - CPAPER
TI  - Behavior of Concrete Round Double Beam Fracture Toughness Test Specimens
AU  - A.R. Ingraffea
AU  - J.H. Hanson
PY  - 1998
T2  - Proceedings of FraMCoS 3
CY  - Gifu, Japan
UR  - https://framcos.org/wp-content/uploads/framcos-papers/Behavior_of_Concrete_Round_Double_Beam_Fracture_Toughness_Test_Specimens.pdf
AB  - Laboratory fracture toughness tests of concrete using wedge-loaded round double beam specimens with a length to diameter ratio of 2: 1 show two distinctly different specimen behaviors. Either the crack re- mains in the plane of the notch, and a valid test result can be obtained, or there is lateral cracking around mid-length which invalidates the results. Results of a controlled study show that the behavior transitions from de- sired to lateral cracking as the maximum aggregate size in a particular concrete increases. Two theories are proposed to explain this behavior and transition: new crack branching and crack turning. To…
ER  -