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March 5, 2026Cleaner MaterialsOpen Access

Effect of thermo- oxidative aging on elastic- viscoplastic behavior of polyethylene pipe: experiments, constitutive modeling, parametric study

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Authors

SZSixi ZhaGCGan CaoYWYang Wang

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Overview

Experiments reveal thermal-aging impacts on polyethylene pipes, suggesting improved safety evaluations for infrastructure.

Key Points

  • The study aims to investigate how thermo-oxidative aging affects the elastic-viscoplastic behavior of polyethylene pipes.
  • Conducted long-term thermo-oxidative aging tests on polyethylene pipes.
  • Measured crystallinity changes using differential scanning calorimetry (DSC).
  • Developed an elastic-viscoplastic constitutive model in a finite deformation framework.
  • Introduced evolution functions for material properties and applied parameter identification methodology.
  • The new model accurately predicts stress-strain behavior under various loading conditions.
  • It captures ratcheting strain evolution and reflects microstructural changes.
  • Outperformed established models like the Bergström-Boyce model and the Three Network model in accuracy.

Cite This Study

Zha et al. (2026) studied this question.

synapsesocial.com/papers/69a91d55d6127c7a504c0048https://doi.org/10.1016/j.clema.2026.100385
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Study on a Rheological Constitutive Model with Yield and Aging Effects for Polyethylene Gas Pipes2025
  2. 2Experimental Research on Thermal-Oxidative Aging Performance of Polyethylene Pipe Under Hydrostatic Pressure2024 · 5 citations
  3. 3Aging and Degradation Patterns and Life Prediction of Polyethylene Pipes Under Thermal Oxidation and Photo-Oxidation Effects2026
  4. 4Comparative study of the behavior of chlorinated polyvinyl chloride and random polypropylene pipes under hydrothermal aging2026
  5. 5Parametric Study on the Influence of Aging on the Stiffness of Thermoplastic Composite Pipes2025