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1.	Tepfers, Ralejs, 1933, et al. (författare) Analytical modelling of the plastic behaviour of concrete under uniform confinement by FRP jacket 2006 Ingår i: Greek National 15th Concrete Conference, Alexandroupolis, 25-27 October 2006. ; A, s. 347-358 Konferensbidrag (refereegranskat)abstract Analytical modelling of the plastic behaviour of concrete under uniform confinement by FRP jacket.T.C. RousakisA.I. KarabinisP.D. KiousisR. TepfersKeywords: FRP, confinement, plasticity theory, dilation, damageABSTRACT: An investigation and calibration methodology is presented for theplastic behaviour of FRP confined concrete based on the indirect extraction ofexperimental data from monotonic compression tests of confined cylinders. ADrucker-Prager plasticity model is proposed with an advanced hardening -softening function, in agreement with experimental observations, where theinelastic parameters of concrete are uniquely expressed through analyticalrelations to concrete strength or jacket's stiffness. The plastic dilationparameter depends on the strength of concrete as well as on the axial rigidityof jacket. The predictions of the model are compared against publishedexperimental data of several researchers and against confinement models.

Tepfers, Ralejs, 1933, et al. (författare)
Analytical modelling of the plastic behaviour of concrete under uniform confinement by FRP jacket
2006
Ingår i: Greek National 15th Concrete Conference, Alexandroupolis, 25-27 October 2006. ; A, s. 347-358
Konferensbidrag (refereegranskat)abstract
- Analytical modelling of the plastic behaviour of concrete under uniform confinement by FRP jacket.T.C. RousakisA.I. KarabinisP.D. KiousisR. TepfersKeywords: FRP, confinement, plasticity theory, dilation, damageABSTRACT: An investigation and calibration methodology is presented for theplastic behaviour of FRP confined concrete based on the indirect extraction ofexperimental data from monotonic compression tests of confined cylinders. ADrucker-Prager plasticity model is proposed with an advanced hardening -softening function, in agreement with experimental observations, where theinelastic parameters of concrete are uniquely expressed through analyticalrelations to concrete strength or jacket's stiffness. The plastic dilationparameter depends on the strength of concrete as well as on the axial rigidityof jacket. The predictions of the model are compared against publishedexperimental data of several researchers and against confinement models.

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