FraMCoS 10 2019 Bayonne, France

A rate dependent eigenerosion plasticity model for concrete

In the publication at hand, a rate dependent plasticity model is introduced to describe the constitutive behavior of concrete. The smooth three surface Drucker-Prager yield function with caps is modified to account for the rate effects by use of the…

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Year 2019
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Abstract

In the publication at hand, a rate dependent plasticity model is introduced to describe the constitutive behavior of concrete. The smooth three surface Drucker-Prager yield function with caps is modified to account for the rate effects by use of the viscoplastic consistency model. Moreover, the fracture process is described via the eigenerosion approach in the framework of variational eigenfrac- ture by coupling the failure with the evolution of plasticity. This is carried out by making the fracture surface energy dependent on the internal variable.