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July 1, 2026Acta GeotechnicaOpen Access

A constitutive elastoplastic model with multiple hardening variables for modeling material degradation

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Authors

FDFrancisco C. DiasRQRoberto QuevedoDRDeane Roehl

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Overview

Randomized trial demonstrates mechanical behavior modeling of porous materials, indicating high computational efficiency.

Key Points

  • This work aims to develop a constitutive model to simulate the mechanical behavior of porous materials using new hardening variables.
  • Introduced a composite yield envelope with two branches and three hardening variables.
  • Employed a generalized substepping algorithm for stress integration.
  • Conducted calibration using laboratory tests to validate model predictions.
  • Model accurately reproduces stress-strain curves with minimal adjustments.
  • Degradation of geomechanical variables shows effective yield surface evolution under stress variations.
  • Sensitivity analysis efficiently screens high-dimensional parameter space for model calibration.

Cite This Study

Dias et al. (2026) studied this question.

synapsesocial.com/papers/6a44ae8c5cd2549c8bc43c39https://doi.org/10.1007/s11440-026-03133-z
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