A STRAIN HARDENING/SOFTENING ELASTO-PLASTIC CONSTITUTIVE MODEL FOR PLASTIC CONCRETE MATERIALS

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MEHMANDOUST KOTLAR M.; AKHTARPOUR A.; SALARI M.

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Paper Information

Journal: Ferdowsi Civil Engineering Year:2017 | Volume:30 | Issue:1 (19) Page(s): 79-91

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Title

A STRAIN HARDENING/SOFTENING ELASTO-PLASTIC CONSTITUTIVE MODEL FOR PLASTIC CONCRETE MATERIALS

Author(s)

MEHMANDOUST KOTLAR M. | AKHTARPOUR A. | SALARI M. | Issue Writer Certificate

Keywords

ELASTO-PLASTIC CONSTITUTIVE MODELQ1

PLASTIC CONCRETEQ1

STRAIN HARDENING-SOFTENINGQ1

TRIAXIAL TESTSQ1

Abstract

In this research, the behavior of PLASTIC CONCRETE materials with a strain Hardening/Softening ELASTO-PLASTIC CONSTITUTIVE MODEL are investigated using FLAC software based on a series of drained triaxial test results. The constitutive model is based on the mobilized strength (friction and cohesion) and mobilized dilatation angle concepts. The results indicate that the assumed functions of modified mobilized friction angle and mobilized cohesion (The Yield function of the model) which are common for geotechnical materials, can predict stress-strain behavior with a sufficient accuracy. However, they cannot simulates the Volume changes due to dilation effects accurately, especially for PLASTIC CONCRETE with a relatively high stiffness and strength. Therefore, the potential function of the model is modified. The stress-strain and Volume strains that have been obtained from the modified model are in good agreement with the experimental data, especially for soft PLASTIC CONCRETE, as well as for hard PLASTIC CONCRETE in a low confining pressure.

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APA: Copy

MEHMANDOUST KOTLAR, M., AKHTARPOUR, A., & SALARI, M.. (2017). A STRAIN HARDENING/SOFTENING ELASTO-PLASTIC CONSTITUTIVE MODEL FOR PLASTIC CONCRETE MATERIALS. JOURNAL OF CIVIL ENGINEERING (JOURNAL OF SCHOOL OF ENGINEERING), 30(1 (19) ), 79-91. SID. https://sid.ir/paper/357023/en

Vancouver: Copy

MEHMANDOUST KOTLAR M., AKHTARPOUR A., SALARI M.. A STRAIN HARDENING/SOFTENING ELASTO-PLASTIC CONSTITUTIVE MODEL FOR PLASTIC CONCRETE MATERIALS. JOURNAL OF CIVIL ENGINEERING (JOURNAL OF SCHOOL OF ENGINEERING)[Internet]. 2017;30(1 (19) ):79-91. Available from: https://sid.ir/paper/357023/en

IEEE: Copy

M. MEHMANDOUST KOTLAR, A. AKHTARPOUR, and M. SALARI, “A STRAIN HARDENING/SOFTENING ELASTO-PLASTIC CONSTITUTIVE MODEL FOR PLASTIC CONCRETE MATERIALS,” JOURNAL OF CIVIL ENGINEERING (JOURNAL OF SCHOOL OF ENGINEERING), vol. 30, no. 1 (19) , pp. 79–91, 2017, [Online]. Available: https://sid.ir/paper/357023/en

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