Coupled systems mechanics

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Material model for load rate sensitivity

  • Kozar, Ivica (University of Rijeka Faculty of Civil Engineering) ;
  • Ibrahimbegovic, Adnan (Sorbonne Universites / Universite de Technologie Compiegne, Laboratoire Roberval de Mecanique Centre de Recherche Royallieu) ;
  • Rukavina, Tea (University of Rijeka Faculty of Civil Engineering)
  • Received : 2017.06.07
  • Accepted : 2017.06.23
  • Published : 2018.04.25
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Abstract

This work presents a novel model for analysis of the loading rate influence onto structure response. The model is based on the principles of nonlinear system dynamics, i.e., consists of a system of nonlinear differential equations. In contrast to classical linearized models, this one comprises mass and loading as integral parts of the model. Application of the Kelvin and the Maxwell material models relates the novel formulation to the existing material formulations. All the analysis is performed on a proprietary computer program based on Wolfram Mathematica. This work can be considered as an extended proof of concept for the application of the nonlinear solid model in material response to dynamic loading.

Keywords

Acknowledgement

Supported by : The Croatian Science Foundation

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