Residual stress model of pre-stressed dry grinding considering coupling of thermal, stress, and phase transformation

Shi, Xiaoliang; Xiu, Shichao

doi:10.1007/s40436-019-00280-3

Cited by 18 publications

(8 citation statements)

References 22 publications

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“…In order to investigate the causes of inclined wave generation and observe the variation law of inclined wave under different rolling conditions. In this paper, a three-dimensional finite element model was established using ABAQUS/ Standard finite element software, which was used to simulate the rolling process under different parameters [20].…”

Section: Cold Rolling Model Based On Elastic-plastic Finite Element M...mentioning

confidence: 99%

Numerical simulation and suppression method of inclined wave defects in strip cold rolling

Wang

Tang

et al. 2022

Ironmaking & Steelmaking

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In the strip cold rolling process, the inclined wave defect is an atypical flatness defect that can adversely affect the subsequent coating process. In order to investigate the causes of inclined wave defects, the tension stress distribution in the cold rolling process was investigated by using the method of assuming pre-buckling load distribution and stress boundary conditions in this paper. According to the study, the load distribution that produces the inclined wave defect was obtained, and the load distribution was verified by finite element simulation. The results show that the obtained load distributions are consistent with the conditions for the generation of inclined wave defects. On this basis, the influence laws of several parameters on the inclined wave defects are obtained through rolling test and simulation analysis, and the effective suppression of strip inclined wave defects is achieved.

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Section: Cold Rolling Model Based On Elastic-plastic Finite Element M...mentioning

confidence: 99%

Numerical simulation and suppression method of inclined wave defects in strip cold rolling

Wang

Tang

et al. 2022

Ironmaking & Steelmaking

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“…Truscott solved the thermal mass stressstrain coupling mathematical model by using the method of controlling the volume finite element [55]. Shi et al established the residual stress model of the prestressed dry-grinding surface by the finite element method, and considered factors such as thermal field and prestress in the model [56]. Due to the complexity of the actual drying process and the hypotheses of the models, to some extent, the calculated values from models are often quite different from the experimental values.…”

Section: Advances Of the Wood Drying Stress Modelmentioning

confidence: 99%

Drying Stress and Strain of Wood: A Review

Yin

Liu

2021

Applied Sciences

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Wood drying stress causes various drying defects, which result from the wood microstructure and the transfer of heat and mass during the drying. It is the fundamental way to solve the problem of defects to clarify the law and mechanism of wood stress and strain development during drying. In this paper, based on the defects of wood drying, the theory and experimental testing methods of drying stress and strain were summarized. Meanwhile, artificial neural networks (ANN) and their application in the wood drying field were also investigated. The traditional prong and slicing methods were used practically in the research and industry of wood drying, but the stress changes in-process cannot be trapped. The technologies of image analysis and near-infrared spectroscopy provide a new opportunity for the detection of drying stress and strain. Hence, future interest should be attached to the combination of the theory of heat and mass transfer and their coupling during drying with the theory of microscopic cell wall mechanics and macroscopic drying. A more complete image acquisition and analysis system should be developed to realize the real-time monitoring of drying strain and cracking, practically. A more feasible and reasonable prediction model of wood drying stress and strain should be established to achieve the accuracy of the prediction.

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“…In grinding hardening process, the surface material of the workpiece is impacted by the abrasive grains of grinding wheel, and lots of dislocation is generated in the contacting area of grinding. 16 The movement of dislocation meets obstacle like grain boundary and second-phase particle. If the driving force can't overcome the obstructive force, the dislocation will stop and pile up in front of the obstacle.…”

Section: Types Of Micro-crackmentioning

confidence: 99%

A research on the mechanism and model of surface micro-damage in grinding hardening

Shi

Zhang

Xiu

2021

Advances in Mechanical Engineering

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Grinding hardening can obtain hardening effect besides fine machining effect on the surface of workpiece. A certain degree of surface micro-damage will be formed during grinding hardening process which mainly contains micro-crack, melting coating, decarburization, and surface scratch. In order to study the micro-damage of grinding hardening, the paper carries on a grinding hardening experiment and the characteristics of micro-damage are observed. The generation mechanism of micro-crack is revealed. It is formed by the accumulation of dislocation pile-up in the condition of grinding hardening process. When the grinding depth reaches a certain value, the surface micro-crack will be produced obviously and become more serious with the increasing of grinding depth. Other micro-damage containing surface melting coating, decarburization, and surface scratch are also studied and their relevance with micro-crack is revealed. Based on the grinding hardening theory and pile-up dislocation theory, a model for micro-crack of grinding hardening is established. The calculating result of the model accords with the experimental result in general.

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Residual stress model of pre-stressed dry grinding considering coupling of thermal, stress, and phase transformation

Cited by 18 publications

References 22 publications

Numerical simulation and suppression method of inclined wave defects in strip cold rolling

Numerical simulation and suppression method of inclined wave defects in strip cold rolling

Drying Stress and Strain of Wood: A Review

A research on the mechanism and model of surface micro-damage in grinding hardening

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