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Keywords: Abaqus/Python, Pentamode metamaterial, Rapid modelling analysis. Abstract. The realization of the special physical properties of metamaterials depends on the artificially designed constitutive relations, and their mechanical properties become the key research point. In order to enhance the analysis efficiency of mechanical properties of three-dimensi onal (3D) pentamode metamaterials, we propose a rapid modeling method based on Abaqus using the Python script language. The rapid modelling parameters are determined according to the microstructure characteristics of 3D pentamode metamaterials. The parametrized model of pentamode metamaterials has been built by using the Python language and interactive input interfaces. Based on the rapid pre-processing and post-processing modules, the finite element analysis (FEA) model is automatically generated and the analysis and calculation of simulation results are automatically completed. The rapid modelling approach proposed in this paper can conveniently build the FEA model by directly inputting the design parameters of 3D pentamode metamaterials and after calculation, automatically extract needed data and information, make an analysis and calculate through the rapid post-processing module. The research result lays a crucial foundation for further large-scale simulation and optimized design of mechanical properties of 3D pentamode metamaterials.

Investigation on A Rapid Modelling Analysis Approach of 3D Pentamode Metamaterials