Three-dimensional nonlinear Nishihara creep-Ubiquitous joint model considering high temperature effect

IF 5.1 3区工程技术 Q2 ENERGY & FUELS

Thermal Science and Engineering Progress Pub Date : 2025-03-20 DOI:10.1016/j.tsep.2025.103528

Haopeng Jiang , Wei Yin , Kun Zhang , Fengrui Zhang

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引用次数: 0

Abstract

In order to develop a damage model that can reflect the creep mechanical behavior of three-dimensional layered rocks under high temperature, a nonlinear Nishihara-Ubiquitous Joint three-dimensional creep damage model and its differential form considering high temperature load coupling damage for layered rocks were proposed and derived based on the traditional Nishihara model. And the rationality of the model was verified through existing high-temperature limestone creep tests. Finally, the model was used to simulate typical tunnel engineering and explore the changes in rock displacement and plastic zone with respect to bedding angle and time before and after damage. The research results indicate that the model can simulate the viscoelastic plastic mechanical properties of high-temperature layered rocks and follow the ubiquitous joint yield criterion. By comparing with experimental data, it was found that the proposed model can well express the three-stage creep behavior of high-temperature layered rocks, especially the accelerated creep stage. This model also reflects the influence of different bedding angles on the creep characteristics of rocks. For tunnel surrounding rock at the same joint angle, as the temperature and creep time increase, the range of creep deformation, plastic zone, and damage zone gradually increases. Meantime, there are certain differences in the creep deformation and plastic zone, showing significant anisotropy. This paper verifies the rationality and feasibility of the development model, which can provide reference for the long-term stability analysis of high-temperature underground rock structures.

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来源期刊

Thermal Science and Engineering Progress Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

7.20

自引率

10.40%

发文量

327

审稿时长

41 days

期刊介绍： Thermal Science and Engineering Progress (TSEP) publishes original, high-quality research articles that span activities ranging from fundamental scientific research and discussion of the more controversial thermodynamic theories, to developments in thermal engineering that are in many instances examples of the way scientists and engineers are addressing the challenges facing a growing population – smart cities and global warming – maximising thermodynamic efficiencies and minimising all heat losses. It is intended that these will be of current relevance and interest to industry, academia and other practitioners. It is evident that many specialised journals in thermal and, to some extent, in fluid disciplines tend to focus on topics that can be classified as fundamental in nature, or are ‘applied’ and near-market. Thermal Science and Engineering Progress will bridge the gap between these two areas, allowing authors to make an easy choice, should they or a journal editor feel that their papers are ‘out of scope’ when considering other journals. The range of topics covered by Thermal Science and Engineering Progress addresses the rapid rate of development being made in thermal transfer processes as they affect traditional fields, and important growth in the topical research areas of aerospace, thermal biological and medical systems, electronics and nano-technologies, renewable energy systems, food production (including agriculture), and the need to minimise man-made thermal impacts on climate change. Review articles on appropriate topics for TSEP are encouraged, although until TSEP is fully established, these will be limited in number. Before submitting such articles, please contact one of the Editors, or a member of the Editorial Advisory Board with an outline of your proposal and your expertise in the area of your review.