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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국계산역학회 Computers and Concrete, An International Journal Computers and Concrete, An International Journal Vol.20 No.1
- 발행연도
- 2017.1
- 수록면
- 1 - 10 (10page)
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This paper focuses on the mesh-size dependency in numerical simulations of reinforced concrete (RC) structures subjected to blast loading. A tensile failure criterion that can minimize the mesh-dependency of simulation results is introduced based on the fracture energy theory. In addition, conventional plasticity based damage models for concrete such as the CSC model and the HJC model, which are widely used for blast analyses of concrete structures, are compared with the orthotropic model that adopts the introduced tensile failure criterion in blast tests to verify the proposed criterion. The numerical predictions of the time-displacement relations at the mid-span of RC beams subjected to blast loading are compared with experimental results. The analytical results show that the numerical error according to the change in the finite element mesh size is substantially reduced and the accuracy of the numerical results is improved by applying a unique failure strain value determined by the proposed criterion.
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참고문헌 (38)
참고문헌 신청
Bažant, Z. P. / 1983 / Crack band theory for fracture of concrete / Mater. Struct. 16(3):155~177
Carpinteri, A. / 1994 / Size effects on tensile fracture properties : A unified explanation based on disorder and fractality of concrete microstructure / Mater. Struct. 27(10):563~571
Cevera, M. / 2006 / Smeared crack approach : Back to the original track / J. Numer. Anal. Meth. Geomech. 30(12):1173~1199
Comite Euro-International De Beton / 1993 / CEB-FIP Model Code 1990 / Redwood Books
Cusatis, G. / 2011 / Strain-rate effects on concrete behavior / J. Impact Eng. 38(4):162~170
Carpinteri, A. / 1994 / Size effects on tensile fracture properties : A unified explanation based on disorder and fractality of concrete microstructure / Mater. Struct. 27(10):563~571
Cevera, M. / 2006 / Smeared crack approach : Back to the original track / J. Numer. Anal. Meth. Geomech. 30(12):1173~1199
Comite Euro-International De Beton / 1993 / CEB-FIP Model Code 1990 / Redwood Books
Cusatis, G. / 2011 / Strain-rate effects on concrete behavior / J. Impact Eng. 38(4):162~170
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