TY - JOUR
T1 - Characterization of concrete failure behavior
T2 - a comprehensive experimental database for the calibration and validation of concrete models
AU - Wendner, Roman
AU - Vorel, Jan
AU - Smith, Jovanca
AU - Hoover, Christian G.
AU - Bažant, Zdeněk P.
AU - Cusatis, Gianluca
N1 - Funding Information:
The financial support by the Austrian Federal Ministry of Economy, Family and Youth and the National Foundation for Research, Technology and Development for part of the analysis is gratefully acknowledged, as is the financial support from the U.S. Department of Transportation, provided through Grant No. 20778 from the Infrastructure Technology Institute of Northwestern University, for the initial size effect investigation. The work of G. Cusatis was supported under NSF Grant No. 0928448.
Publisher Copyright:
© 2014, RILEM.
PY - 2015/11/1
Y1 - 2015/11/1
N2 - Concrete is undoubtedly the most important and widely used construction material of the late twentieth century. Yet, mathematical models that can accurately capture the particular material behavior under all loading conditions of significance are scarce at best. Although concepts and suitable models have existed for quite a while, their practical significance is low due to the limited attention to calibration and validation requirements and the scarcity of robust, transparent and comprehensive methods to perform such tasks. In addition, issues such as computational cost, difficulties associated with calculating the response of highly nonlinear systems, and, most importantly, lack of comprehensive experimental data sets have hampered progress in this area. This paper attempts to promote the use of advanced concrete models by (a) providing an overview of required tests and data preparation techniques; and (b) making a comprehensive set of concrete test data, cast from the same batch, available for model development, calibration, and validation. Data included in the database ‘http://www.baunat.boku.ac.at/cd-labor/downloads/versuchsdaten’ comprise flexure tests of four sizes, direct tension tests, confined and unconfined compression tests, Brazilian splitting tests of five sizes, and loading and unloading data. For all specimen sets the nominal stress–strain curves and crack patterns are provided.
AB - Concrete is undoubtedly the most important and widely used construction material of the late twentieth century. Yet, mathematical models that can accurately capture the particular material behavior under all loading conditions of significance are scarce at best. Although concepts and suitable models have existed for quite a while, their practical significance is low due to the limited attention to calibration and validation requirements and the scarcity of robust, transparent and comprehensive methods to perform such tasks. In addition, issues such as computational cost, difficulties associated with calculating the response of highly nonlinear systems, and, most importantly, lack of comprehensive experimental data sets have hampered progress in this area. This paper attempts to promote the use of advanced concrete models by (a) providing an overview of required tests and data preparation techniques; and (b) making a comprehensive set of concrete test data, cast from the same batch, available for model development, calibration, and validation. Data included in the database ‘http://www.baunat.boku.ac.at/cd-labor/downloads/versuchsdaten’ comprise flexure tests of four sizes, direct tension tests, confined and unconfined compression tests, Brazilian splitting tests of five sizes, and loading and unloading data. For all specimen sets the nominal stress–strain curves and crack patterns are provided.
KW - 3-Point bending
KW - Brazilian splitting
KW - Cohesive fracture
KW - Single notch tension
KW - Size effect
KW - Softening
UR - http://www.scopus.com/inward/record.url?scp=84945232103&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84945232103&partnerID=8YFLogxK
U2 - 10.1617/s11527-014-0426-0
DO - 10.1617/s11527-014-0426-0
M3 - Article
AN - SCOPUS:84945232103
SN - 1359-5997
VL - 48
SP - 3603
EP - 3626
JO - Materials and Structures/Materiaux et Constructions
JF - Materials and Structures/Materiaux et Constructions
IS - 11
ER -