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<p>Post-processing shape memory alloy (SMA) characterization data and calibrating an appropriate constitutive model are vital but potentially time-consuming tasks when developing a new SMA technology. Such tasks can intimidate prospective SMA users as the multiple data streams, filtering techniques, and constitutive model formulation must all be understood. This prerequisite knowledge creates a barrier to entry and potentially restricts the adoption of SMAs into new fields. We present a tool to post-process experimental SMA data, generate publication-quality images, and calibrate the Lagoudas' three-dimensional constitutive model in an automated fashion. The Shape Memory Alloy Rendering of Experimental Analysis and Calibration Tool (SMA-REACT) is GUI-based and open-source, allowing for widespread adoption and modification. In this work, we describe SMA-REACT and calibrate a sample dataset to a one-dimensional reduction of the Lagoudas constitutive model, providing an example workflow that can be easily replicated with user data. Given the model’s Mises formulation, such a one-dimensional calibration is also completely sufficient for subsequent three-dimensional modeling. Our tool offers experimentalists, mechanicians, and designers a low-barrier-to-entry solution for post-processing and model calibration and helps speed the process between characterization and system integration.</p>

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SMA-REACT: An Open-Source Toolkit for Shape Memory Alloy Data Visualization and Constitutive Model Calibration

  • 期刊论文

  • 发表日期：

    2025年12月9日

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  • Patrick Walgren,
  • Jacob Mingear,
  • Darren Hartl

摘要

Post-processing shape memory alloy (SMA) characterization data and calibrating an appropriate constitutive model are vital but potentially time-consuming tasks when developing a new SMA technology. Such tasks can intimidate prospective SMA users as the multiple data streams, filtering techniques, and constitutive model formulation must all be understood. This prerequisite knowledge creates a barrier to entry and potentially restricts the adoption of SMAs into new fields. We present a tool to post-process experimental SMA data, generate publication-quality images, and calibrate the Lagoudas' three-dimensional constitutive model in an automated fashion. The Shape Memory Alloy Rendering of Experimental Analysis and Calibration Tool (SMA-REACT) is GUI-based and open-source, allowing for widespread adoption and modification. In this work, we describe SMA-REACT and calibrate a sample dataset to a one-dimensional reduction of the Lagoudas constitutive model, providing an example workflow that can be easily replicated with user data. Given the model’s Mises formulation, such a one-dimensional calibration is also completely sufficient for subsequent three-dimensional modeling. Our tool offers experimentalists, mechanicians, and designers a low-barrier-to-entry solution for post-processing and model calibration and helps speed the process between characterization and system integration.