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Effect of Time and Stress on Creep Damage Characteristics of Cement-Based Materials
BuildingsIn the realm of daily life, ensuring the safety of building structures and civil engineering projects remains a paramount research focus. The creep properties of materials significantly influence their long-term loading process.
Yifan Zhang +5 more
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Research on Creep Model of Roadway Surrounding Rock Based on Variable Creep Parameters
Meikuang Anquan, 2020 In order to study the creep behavior of surrounding rock of Huaying Coal Mine in Sichuan under different confining pressure characteristics, the triaxial creep test of sandstone was carried out by TAW-2000 test system.
LIU Changming, ZHANG Hong
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Understanding the creep behavior of shale via nano-DMA method
Energy Reports, 2021 Understanding the creep behavior of shale is essential to precisely predict borehole instability issues and model fracturing of unconventional shale reservoirs. In this study, the creep behavior of shale in micron scale is investigated by integrating the
Kouqi Liu +4 more
doaj
Internal stresses analysis on welded joint in Grade 91 steel under creep test: synchrotron DRX tests and modelling [PDF]
arXiv, 2022 The analysis and understanding of creep damage of Grade 91 steel welded joints is an important topic in the energy industry. Creep tests on welded joints were carried out at 600$^{\circ}$C, 100MPa and then interrupted at 0%, 10%, 30%, 50%, 80% of the expected life and after failure.
arxiv
Power-Law Creep from Discrete Dislocation Dynamics [PDF]
Physical Review Letters, 109, 265504 (2012), 2017 We report two-dimensional discrete dislocation dynamics simulations of combined dislocation glide and climb leading to `power-law' creep in a model aluminum crystal. The approach fully accounts for matter transport due to vacancy diffusion and its coupling with dislocation motion.
arxiv +1 more source
Journal of Applied Physics, 1957 The creep function for the ``National Bureau of Standards'' polyisobutylene at 25°C is calculated from the relaxation function, using the integral equation connecting them. The calculated function is shown to be correct in its initial slope, to satisfy the inequality φ(t)ψ(t)⩽1 throughout, and to approach satisfactorily the independently determined ...
Hamming, Richard W., Hopkins, I.L.
openaire +3 more sources
Assessment of creep behavior using a damage-coupled model for martensitic stainless steel
Mechanical Engineering Journal, 2021 In this study, the Liu–Murakami (LM) creep damage-coupled model was considered to evaluate the creep properties of martensitic stainless steel. The degree of creep damage was examined at two temperatures (565 ℃ and 593 ℃) to assess mechanically and ...
Sungmin YOON +5 more
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Does a dissolution-precipitation mechanism explain concrete creep in moist environments? [PDF]
, 2015 Long-term creep (i.e., deformation under sustained load) is a significant material response that needs to be accounted for in concrete structural design. However, the nature and origin of creep remains poorly understood, and controversial. Here, we propose that concrete creep at RH (relative humidity) > 50%, but fixed moisture-contents (i.e., basic ...
arxiv +1 more source
Crystals, 2022 Nickel-based single-crystal superalloys are widely used in aeroengine hot-end components, owing to their unique crystal structure and outstanding high-temperature mechanical properties.
Wangjiao Xiong +7 more
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Statistical dynamics of early creep stages in disordered materials [PDF]
European Physical Journal B (2019) 92: 139, 2019 When materials are loaded below their short-term strength over extended periods, a slow time-dependent process known as creep deformation takes place. During creep deformation, the structural properties of a material evolve as a function of time. By means of a generic coarse-grained mesoscopic elastoplastic model which envisages deformation as a ...
arxiv +1 more source