考虑硬化和损伤的岩石蠕变修正模型

IF 2.1 4区材料科学 Q2 MATERIALS SCIENCE, CHARACTERIZATION & TESTING

Mechanics of Time-Dependent Materials Pub Date : 2023-07-25 DOI:10.1007/s11043-023-09629-5

Zhiming Zheng, Yu Yang, Cheng Pan

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引用次数: 0

摘要

岩石蠕变是温度和湿度等多种环境条件以及内部硬化和损伤共同作用的结果。在本研究中，我们通过在 Nishihara 模型中使用仪表盘，引入了一个考虑硬化和损伤共同作用的蠕变参数。通过将该仪表盘与修改后的西原模型连接，建立了一个修改后的蠕变模型。建模结果与实验蠕变数据非常吻合。该模型解决了传统蜘蛛模型在描述加速蠕变特性方面的不足。蠕变瞬时模型可以描述蠕变曲线和蠕变过程中的硬化-损伤特征。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

A modified creep model for rock considering hardening and damage

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A modified creep model for rock considering hardening and damage

Rock creep is the result of the combined effects of many environmental conditions, such as temperature and moisture, and internal hardening and damage. In this study, we introduce a creep parameter that accounts for the joint effect of hardening and damage by using a dashpot in the Nishihara model. A modified creep model is established by connecting this dashpot to the modified Nishihara model. The modeling results agree well with the experimental creep data. The model resolves the shortcomings of the conventional spider model in describing the accelerated creep properties. The creep instantaneous model can describe the creep curve and the hardening–damage characteristics of the creep process.

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来源期刊

Mechanics of Time-Dependent Materials 工程技术-材料科学：表征与测试

CiteScore

4.90

自引率

8.00%

发文量

审稿时长

>12 weeks

期刊介绍： Mechanics of Time-Dependent Materials accepts contributions dealing with the time-dependent mechanical properties of solid polymers, metals, ceramics, concrete, wood, or their composites. It is recognized that certain materials can be in the melt state as function of temperature and/or pressure. Contributions concerned with fundamental issues relating to processing and melt-to-solid transition behaviour are welcome, as are contributions addressing time-dependent failure and fracture phenomena. Manuscripts addressing environmental issues will be considered if they relate to time-dependent mechanical properties. The journal promotes the transfer of knowledge between various disciplines that deal with the properties of time-dependent solid materials but approach these from different angles. Among these disciplines are: Mechanical Engineering, Aerospace Engineering, Chemical Engineering, Rheology, Materials Science, Polymer Physics, Design, and others.