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Computers and Concrete Volume 16, Number 4, October 2015 , pages 587-604 DOI: https://doi.org/10.12989/cac.2015.16.4.587 |
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Discrete crack analysis for concrete structures using the hybrid-type penalty method |
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Yoshihiro Fujiwara, Norio Takeuchi1a, Tadahiko Shiomi and Atsushi Kambayashi
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| Abstract | ||
| The hybrid-type penalty method (HPM) is suitable for representing failure phenomena occurring during the transition from continua to discontinua in materials such as concrete. Initiation and propagation of dominant cracks and branching of cracks can easily be modeled as a discrete crack. The HPM represents a discrete crack by eliminating the penalty that represents the separation of the elements at the intersection boundary. This treatment is easy because no change in the degrees of freedom for the discrete crack is necessary. In addition, it is important to evaluate the correct deformation of the continua before the crack formation is initiated. To achieve this, we implemented a constitutive model of concrete for the HPM. In this paper, we explain the implemented constitutive model and describe the simulation of an anchor bolt pullout test using the HPM demonstrating its capability for evaluating progressive failure | ||
| Key Words | ||
| hybrid-type penalty method; discrete crack; concrete structure | ||
| Address | ||
| Yoshihiro Fujiwara: Graduate School of Engineering and Design, Hosei University Norio Takeuchi: Graduate School of Engineering and Design, Hosei University, 2-33 Ichigaya Tamachi, Shinjuku, Tokyo 162-0843, Japan Tadahiko Shiomi: Mind Inc., 7-17-19 Maebara-nishi Funabashi Chiba 274-0825, Japan Atsushi Kambayashi: Research & Development Institute, Takenaka Corporation, 1-5-1 Ohtsuka, Inzai, Chiba 270-1395, Japan | ||