Load-Dependent Power-Law Exponent in Creep Rupture of Heterogeneous Materials
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arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866908720611459072 |
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| author | Braux, Chloé Bérut, Antoine Vanel, Loïc |
| author_facet | Braux, Chloé Bérut, Antoine Vanel, Loïc |
| contents | Creep tests on heterogeneous materials under subcritical loading typically show a power-law decaying strain rate before failure, with the exponent often considered material-dependent but independent of applied stress. By imposing successive small stress relaxations through a displacement feedback loop, we probe creep dynamics and show experimentally that this exponent varies with both applied load and loading direction. Simulations of a disordered fiber bundle model reproduce this load dependence, demonstrating that such models capture essential features of delayed rupture dynamics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_06145 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Load-Dependent Power-Law Exponent in Creep Rupture of Heterogeneous Materials Braux, Chloé Bérut, Antoine Vanel, Loïc Statistical Mechanics Materials Science Creep tests on heterogeneous materials under subcritical loading typically show a power-law decaying strain rate before failure, with the exponent often considered material-dependent but independent of applied stress. By imposing successive small stress relaxations through a displacement feedback loop, we probe creep dynamics and show experimentally that this exponent varies with both applied load and loading direction. Simulations of a disordered fiber bundle model reproduce this load dependence, demonstrating that such models capture essential features of delayed rupture dynamics. |
| title | Load-Dependent Power-Law Exponent in Creep Rupture of Heterogeneous Materials |
| topic | Statistical Mechanics Materials Science |
| url | https://arxiv.org/abs/2506.06145 |