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Fatigue Life Study and Prediction Model for Honeycomb Non-Pneumatic Tires.

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Title: Fatigue Life Study and Prediction Model for Honeycomb Non-Pneumatic Tires.
Authors: Li, Hao Ran1 (AUTHOR), Zhou, Hai Chao1 (AUTHOR) hczhou@ujs.edu.cn, Ren, Hao Ze1 (AUTHOR), Fu, Hong Xun2 (AUTHOR), Xu, Ting3 (AUTHOR)
Source: International Journal of Automotive Technology. Jun2026, Vol. 27 Issue 3, p1321-1335. 15p.
Subjects: Fatigue life, Honeycomb structures, Strain energy, Prediction models, Finite element method, Tires, Crack propagation
Abstract: Non-pneumatic structures significantly enhance tire safety performance, with fatigue life being a crucial indicator for non-pneumatic tires (NPTs). The spoke structure, subjected to complex cyclic loads during rolling, is particularly prone to fatigue failure due to its repeated stress-strain cycles; however, calculating honeycomb structure NPT of fatigue life remains challenging due to the nonlinear material behavior and multi-physics coupling effects. This paper addresses this by proposing a fatigue life calculation method based on tearing energy, which accounts for the energy dissipation mechanism in elastomeric materials. Utilizing finite element numerical simulation, we systematically established relationships between fatigue life and key evaluation indicators (maximum stress, principal logarithmic strain, strain energy density, and strain energy density gradient) under varying loading conditions. Power function-based prediction models for each indicator were then constructed through statistical regression analysis. A comparative analysis of model fitting and prediction accuracy revealed that all four models achieved high fitting accuracy, with the strain energy density gradient-based model exhibiting the highest prediction accuracy, especially for predicting crack initiation and propagation stages. This study provides a theoretical foundation for NPT development and lifespan design improvements, enabling more reliable fatigue resistance optimization in engineering applications. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Automotive Technology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 193627997
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Label: Title
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  Data: Fatigue Life Study and Prediction Model for Honeycomb Non-Pneumatic Tires.
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  Data: <searchLink fieldCode="AR" term="%22Li%2C+Hao+Ran%22">Li, Hao Ran</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhou%2C+Hai+Chao%22">Zhou, Hai Chao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> hczhou@ujs.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Ren%2C+Hao+Ze%22">Ren, Hao Ze</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fu%2C+Hong+Xun%22">Fu, Hong Xun</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xu%2C+Ting%22">Xu, Ting</searchLink><relatesTo>3</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Automotive+Technology%22">International Journal of Automotive Technology</searchLink>. Jun2026, Vol. 27 Issue 3, p1321-1335. 15p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Fatigue+life%22">Fatigue life</searchLink><br /><searchLink fieldCode="DE" term="%22Honeycomb+structures%22">Honeycomb structures</searchLink><br /><searchLink fieldCode="DE" term="%22Strain+energy%22">Strain energy</searchLink><br /><searchLink fieldCode="DE" term="%22Prediction+models%22">Prediction models</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Tires%22">Tires</searchLink><br /><searchLink fieldCode="DE" term="%22Crack+propagation%22">Crack propagation</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Non-pneumatic structures significantly enhance tire safety performance, with fatigue life being a crucial indicator for non-pneumatic tires (NPTs). The spoke structure, subjected to complex cyclic loads during rolling, is particularly prone to fatigue failure due to its repeated stress-strain cycles; however, calculating honeycomb structure NPT of fatigue life remains challenging due to the nonlinear material behavior and multi-physics coupling effects. This paper addresses this by proposing a fatigue life calculation method based on tearing energy, which accounts for the energy dissipation mechanism in elastomeric materials. Utilizing finite element numerical simulation, we systematically established relationships between fatigue life and key evaluation indicators (maximum stress, principal logarithmic strain, strain energy density, and strain energy density gradient) under varying loading conditions. Power function-based prediction models for each indicator were then constructed through statistical regression analysis. A comparative analysis of model fitting and prediction accuracy revealed that all four models achieved high fitting accuracy, with the strain energy density gradient-based model exhibiting the highest prediction accuracy, especially for predicting crack initiation and propagation stages. This study provides a theoretical foundation for NPT development and lifespan design improvements, enabling more reliable fatigue resistance optimization in engineering applications. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Automotive Technology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1007/s12239-025-00364-z
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      – Code: eng
        Text: English
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        PageCount: 15
        StartPage: 1321
    Subjects:
      – SubjectFull: Fatigue life
        Type: general
      – SubjectFull: Honeycomb structures
        Type: general
      – SubjectFull: Strain energy
        Type: general
      – SubjectFull: Prediction models
        Type: general
      – SubjectFull: Finite element method
        Type: general
      – SubjectFull: Tires
        Type: general
      – SubjectFull: Crack propagation
        Type: general
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      – TitleFull: Fatigue Life Study and Prediction Model for Honeycomb Non-Pneumatic Tires.
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            NameFull: Li, Hao Ran
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            NameFull: Zhou, Hai Chao
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            NameFull: Ren, Hao Ze
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            NameFull: Fu, Hong Xun
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            – D: 01
              M: 06
              Text: Jun2026
              Type: published
              Y: 2026
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