APPROPRIATE ELASTO-PLASTIC MODEL FOR GEOTECHNICAL MATERIALS WITH EMPHASIS ON ASPHALT CONCRETE BEHAVIOUR

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AMIR SHAH KARAMI S.A.; POURHOSSEIN R.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: AMIRKABIR Year:2003 | Volume:14 | Issue:53 Page(s): 312-322

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Title

APPROPRIATE ELASTO-PLASTIC MODEL FOR GEOTECHNICAL MATERIALS WITH EMPHASIS ON ASPHALT CONCRETE BEHAVIOUR

Author(s)

AMIR SHAH KARAMI S.A. | POURHOSSEIN R. | Issue Writer Certificate

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Abstract

Todays science and technology involves in identifying exact behavior and performance in engineering materials for the purpose of optimizing the material behavior: Classical models such as Tresca Vonmises Moher-Coloumb and Drucker-Prager are not able to present the actual behavwur of materials in high lateral stress positions: In this research an elasto-plastic cap model has been introduced to show the actual behavior of materials and asphalt concrete in various stress paths which include tensile shear and compression stress positions This behavioral model makes the numerical computations of structures easier and more exact for the sake of its own specifications This model conforms itself to the asphalt concrete properties and is in line with lab results and can be used satisfactorily in pavement anlyses and performance predictions Three subjects have been studied paralleltically and with constant follow-up in this research as under: 1- Giving a new behavioral model that is the difference between this model and the already existing cap models which is the non-occurrence of singularity at the cap and intersection Also the yield surface has here been formulated in such a way to make the cap and body tangent at intersection. 2- Writing a computer program namely POLYMAT using finite element method. This program can include various stress paths and also all different material behaviors such as elastic elasto- plastic visco elasto-plastic and overlay models .3- Back analysis and comparison between the results obtained from the model given and the other two models according to the lab results the back analysis shows more accurate conformation than the ADINA and NOSTRUM ones.

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APA: Copy

AMIR SHAH KARAMI, S.A., & POURHOSSEIN, R.. (2003). APPROPRIATE ELASTO-PLASTIC MODEL FOR GEOTECHNICAL MATERIALS WITH EMPHASIS ON ASPHALT CONCRETE BEHAVIOUR. AMIRKABIR, 14(53), 312-322. SID. https://sid.ir/paper/676/en

Vancouver: Copy

AMIR SHAH KARAMI S.A., POURHOSSEIN R.. APPROPRIATE ELASTO-PLASTIC MODEL FOR GEOTECHNICAL MATERIALS WITH EMPHASIS ON ASPHALT CONCRETE BEHAVIOUR. AMIRKABIR[Internet]. 2003;14(53):312-322. Available from: https://sid.ir/paper/676/en

IEEE: Copy

S.A. AMIR SHAH KARAMI, and R. POURHOSSEIN, “APPROPRIATE ELASTO-PLASTIC MODEL FOR GEOTECHNICAL MATERIALS WITH EMPHASIS ON ASPHALT CONCRETE BEHAVIOUR,” AMIRKABIR, vol. 14, no. 53, pp. 312–322, 2003, [Online]. Available: https://sid.ir/paper/676/en

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