TY - JOUR
T1 - RILEM Standard
T2 - testing methods for determination of the double-K criterion for crack propagation in concrete using wedge-splitting tests and three-point bending beam tests, recommendation of RILEM TC265-TDK
AU - Xu, Shilang
AU - Li, Qinghua
AU - Wu, Yao
AU - Dong, Lixin
AU - Lyu, Yao
AU - Reinhardt, Hans W.
AU - Leung, Christopher K.Y.
AU - Ruiz, Gonzalo
AU - Kumar, Shailendra
AU - Hu, Shaowei
N1 - Publisher Copyright:
© 2021, The Author(s).
PY - 2021/12
Y1 - 2021/12
N2 - In this recommendation, standard testing methods for determination of the double-K criterion for Mode I crack propagation in concrete using wedge-splitting tests and three-point bending beam tests are specified for the fracture parameters of the initial cracking toughness KIcini and the unstable fracture toughness KIcun. Along with the recommendation of the standard testing methods, the theoretical background of the double-K criterion, the calculation methods and the results of round-robin testing for determining the double-K fracture parameters are presented in technical reports [1, 2]. The recommendation of the standard testing methods includes geometry for specimens, fabrication of specimens, testing machine, load transmission system and supports, measuring instruments, determination of initial cracking load Pini, determination of measured maximum load Pmax and initial compliance ci, calculation methods for wedge-splitting test and three-point bending beam test, as well as the testing results and testing report forms. According to these methods, the measured fracture parameters of double-K criterion can be used to describe the onset of cracking, and the onset of unstable cracking or failure for predicting crack initiation, structure failure and crack stability in concrete structures.
AB - In this recommendation, standard testing methods for determination of the double-K criterion for Mode I crack propagation in concrete using wedge-splitting tests and three-point bending beam tests are specified for the fracture parameters of the initial cracking toughness KIcini and the unstable fracture toughness KIcun. Along with the recommendation of the standard testing methods, the theoretical background of the double-K criterion, the calculation methods and the results of round-robin testing for determining the double-K fracture parameters are presented in technical reports [1, 2]. The recommendation of the standard testing methods includes geometry for specimens, fabrication of specimens, testing machine, load transmission system and supports, measuring instruments, determination of initial cracking load Pini, determination of measured maximum load Pmax and initial compliance ci, calculation methods for wedge-splitting test and three-point bending beam test, as well as the testing results and testing report forms. According to these methods, the measured fracture parameters of double-K criterion can be used to describe the onset of cracking, and the onset of unstable cracking or failure for predicting crack initiation, structure failure and crack stability in concrete structures.
KW - Concrete fracture
KW - Crack propagation
KW - Double-K criterion
KW - Standard testing methods
UR - https://www.webofscience.com/wos/woscc/full-record/WOS:000718852600001
UR - https://openalex.org/W3214647710
UR - https://www.scopus.com/pages/publications/85118481907
U2 - 10.1617/s11527-021-01786-8
DO - 10.1617/s11527-021-01786-8
M3 - Journal Article
SN - 1359-5997
VL - 54
JO - Materials and Structures/Materiaux et Constructions
JF - Materials and Structures/Materiaux et Constructions
IS - 6
M1 - 220
ER -