A unified thermal-hardening and thermal-softening constitutive model of soils

Xiong, Yi; Yang, Qi-lai; Sang, Qin-yang; Yi, Zhu; Zhang, Sheng; Zheng, Rong

doi:10.1016/j.apm.2019.04.034

Cited by 13 publications

(1 citation statement)

References 27 publications

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“…It worth to mention that Xiong et al [58] developed a formulation for effect of temperature on preconsolidation pressure very recently based on the assumption of Cekerevac and Laloui [52] as:…”

Section: Preconsolidation Pressurementioning

confidence: 99%

A Review on Effect of Temperature Change on Mechanical Parameters of Fine Soils

Hoseinimighani

Szendefy

2021

Period. Polytech. Civil Eng.

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Temperature change in soils and its possible effects date back to 20th century where temperature difference between laboratory and field for sampling made researchers interested in this topic. Due to development of technology and industry nowadays, new engineering applications such as nuclear waste disposal, oil extraction and pipelines, geothermal structures etc. have turned temperature change in soils to one of the high trending research topics where suitable knowledge of thermal effects on soils is required. For this purpose, it is tried at first to highlight the importance of temperature effect on geotechnical design by some examples and possible effect of temperature change on mechanical properties of fine soils are reviewed afterward. Investigation on results from literature proved that temperature change could alter some strength and consolidation parameters of fine soils. Different factors are proposed to be responsible for such thermally induced changes in mechanical parameters, however, existing explanations and comments from literature are diverse and not fully understood yet. In order to fill this gap, it is tried to find connections between different mechanical parameters and their behavior toward temperature change and possibly find a unified approach and factor to explain the mechanism responsible for thermally induced changes in mechanical parameters of fine soils. Finally, at the end, it is concluded that effect of temperature on structural rearrangement of solid particles could be a promising factor to connect the responses of different mechanical parameters toward temperature change.

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Section: Preconsolidation Pressurementioning

confidence: 99%

A Review on Effect of Temperature Change on Mechanical Parameters of Fine Soils

Hoseinimighani

Szendefy

2021

Period. Polytech. Civil Eng.

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A Dislocation Density‐Based Unified Constitutive Model of Multipass Deformation

Jia

Peng

2019

steel research int.

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Quantitative relations between the softening mechanism and the constitutive model are determined based on the dislocation density, the influences of various deformation parameters, the dynamic softening mechanism, and static softening mechanism. A unified explicit constitutive model of multipass deformation is established by coupling the microstructural model of Q345B steel (the equivalent of ASTM A572Gr50). The flow stress curves under different deformation conditions are obtained from a Gleeble-3500 thermosimulation machine during hot compression deformation, including single-pass and double-pass compression for Q345B. From the experimental results, a new method to identify parameters is developed to determine the material parameters for the unified constitutive model and to establish their analytic expressions. The results predicted from the proposed model are also presented for validation and compared with the experimental results. The proposed model can accurately describe the stressstrain curves during dynamic recovery on the high-stress stage, during dynamic recrystallization, steady flow state, and next pass after the completion of static softening. In addition, the errors from the model are adequately analyzed to make further improvements.

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The effect of temperature on the drained shear behavior of calcareous sand

Shan

Xia

et al. 2020

Acta Geotech.

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A unified thermal-hardening and thermal-softening constitutive model of soils

Cited by 13 publications

References 27 publications

A Review on Effect of Temperature Change on Mechanical Parameters of Fine Soils

A Review on Effect of Temperature Change on Mechanical Parameters of Fine Soils

A Dislocation Density‐Based Unified Constitutive Model of Multipass Deformation

The effect of temperature on the drained shear behavior of calcareous sand

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