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This paper presents a novel approach for characterizing two-dimensional heterogeneous materials using full-field strain data in conjunction with the finite element method (FEM). Material property identification (MPI) involves solution of equilibrium equations using FEM with material properties as unknown variable and strain/displacement as known variables. The MPI algorithm is validated using synthetically generated strain data for a known heterogeneous material distribution. Robustness of the MPI algorithm is verified by comparing errors in the predicted results using varying levels of noise in the input strain data.

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Characterization of Two-Dimensional Heterogeneous Materials Using Full-Field Strain Data and Finite Element Analysis

  • 会议论文

  • 发表日期：

    2025年

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  • Sreehari Rajan Kattil,
  • Michael A. Sutton,
  • Subramani Sockalingam,
  • Tusit Weerasooriya

摘要

This paper presents a novel approach for characterizing two-dimensional heterogeneous materials using full-field strain data in conjunction with the finite element method (FEM). Material property identification (MPI) involves solution of equilibrium equations using FEM with material properties as unknown variable and strain/displacement as known variables. The MPI algorithm is validated using synthetically generated strain data for a known heterogeneous material distribution. Robustness of the MPI algorithm is verified by comparing errors in the predicted results using varying levels of noise in the input strain data.