International Journal of Mechanical Sciences最新文献

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Atomistic insights into tensile damage of functionally Graded Al-SiC composites
IF 7.1 1区 工程技术
International Journal of Mechanical Sciences Pub Date : 2025-01-27 DOI: 10.1016/j.ijmecsci.2025.110012
Mostafa Fathalian, Hossein Darban, Eligiusz Postek
{"title":"Atomistic insights into tensile damage of functionally Graded Al-SiC composites","authors":"Mostafa Fathalian,&nbsp;Hossein Darban,&nbsp;Eligiusz Postek","doi":"10.1016/j.ijmecsci.2025.110012","DOIUrl":"10.1016/j.ijmecsci.2025.110012","url":null,"abstract":"<div><div>The tensile behavior and damage mechanisms of functionally graded (FG) Al-SiC composites are systematically investigated using molecular dynamics (MD) simulations. A comprehensive set of large-scale MD simulations is conducted on FG composites composed of three layers reinforced with different volume fractions of randomly distributed three-dimensional SiC particles. This work introduces a novel approach by modeling the reinforcement ceramic as three-dimensional particles, thereby more accurately representing the FG composite microstructure. Predictions of the model for Young's moduli of composites align with experimental data from the literature. The yield and ultimate tensile strength are overestimated due to the high applied strain rates and idealized crystal structures used in the simulations, which lack common defects such as vacancies and dislocations. The model is utilized to study the influence of reinforcement particle shape, size, orientation, and distribution on the tensile and damage behavior of composites. The FG composites reinforced with cubic particles demonstrate lower yield and tensile strength than those with spherical particles, primarily due to the high-stress concentrations around the corners of the cubic reinforcements. Reducing the size of SiC particles enhances the elastic modulus, yield, and tensile strength of the FG composites. It is shown that the stiffness of the FG composites reinforced with rectangular prisms can be effectively tailored by changing the orientation of the reinforcements. When SiC rectangular prisms are aligned along the tensile direction, the resulting FG composites exhibit higher yield and tensile strength. This work offers fundamental atomistic insights that help design FG composites with better mechanical performance.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"288 ","pages":"Article 110012"},"PeriodicalIF":7.1,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143077801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lorentz force and vibrations in transverse gradient coils in MRI
IF 7.1 1区 工程技术
International Journal of Mechanical Sciences Pub Date : 2025-01-26 DOI: 10.1016/j.ijmecsci.2025.110011
Paolo Leo, Annunziata D'Orazio
{"title":"Lorentz force and vibrations in transverse gradient coils in MRI","authors":"Paolo Leo,&nbsp;Annunziata D'Orazio","doi":"10.1016/j.ijmecsci.2025.110011","DOIUrl":"10.1016/j.ijmecsci.2025.110011","url":null,"abstract":"<div><div>Acoustic noise during Magnetic Resonance Imaging (MRI), with Sound Pressure Levels (SPL) exceeding 130 dB, is an ongoing issue for health and well-being of patients and operators and causes difficulties in signal acquisition. Understanding the characteristics and generation mechanisms of noise and vibrations is essential for the accurate development of noise control methods to be applied in the design of new devices and imaging sequences. The aim of this work is to present a closed-form analytical model for the spatial distribution of the Lorentz force per unit area that acts on simplified transverse gradient coil wire patterns. The geometrical configuration of the wire patterns has been explicitly modelled, in order to identify relationships between Lorentz forces and design parameters. To the best of our knowledge, this is the first time that a closed-form expression for the Lorentz force on transverse gradient coils has been presented on the basis of the spatial distribution of the wire patterns. Theoretical results for the Lorentz force distribution confirm that the amplitude of the Lorentz force on each elliptical spire constituting the transverse coil is linearly dependant on the static magnetic field strength <em>B</em><sub>0</sub> and the coil driving current <em>I</em>. A modulation along the length of each elliptic spire following a cosine law was identified. The difference of size between the elliptical conductors has been identified for the first time as a key parameter influencing the Lorentz force amplitude along different spires. Numerical simulations for the vibrational response of an insert gradient assembly excited by the proposed force field are carried out. The numerical results for the free and forced vibrations are in good agreement with numerical and experimental results in the open literature.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"288 ","pages":"Article 110011"},"PeriodicalIF":7.1,"publicationDate":"2025-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143077802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Atomic insights on mechanical and piezoelectric properties of BNNTs and BNNTs/PDMS nanocomposites
IF 7.1 1区 工程技术
International Journal of Mechanical Sciences Pub Date : 2025-01-26 DOI: 10.1016/j.ijmecsci.2025.110007
Bin Yang , Xu Yang , Yunlong Li , Quan Wang , Yufei Wu , Shijie Wang
{"title":"Atomic insights on mechanical and piezoelectric properties of BNNTs and BNNTs/PDMS nanocomposites","authors":"Bin Yang ,&nbsp;Xu Yang ,&nbsp;Yunlong Li ,&nbsp;Quan Wang ,&nbsp;Yufei Wu ,&nbsp;Shijie Wang","doi":"10.1016/j.ijmecsci.2025.110007","DOIUrl":"10.1016/j.ijmecsci.2025.110007","url":null,"abstract":"<div><div>This study introduced a molecular dynamic (MD)-based numerical model to evaluate the mechanical and piezoelectric behavior of boron nitride nanotubes (BNNTs) and their composites, alongside a strategy to modulate mechanical and piezoelectric properties of their composite by controlling BNNTs defects. First, effects of BNNTs diameter and vacancy defects on their mechanical and piezoelectric properties were investigated, revealing the relationship between the defect orientation, symmetry, and electromechanical response. Subsequently, a Monte Carlo random number algorithm was applied to construct the coupling model of BNNTs/polydimethylsiloxane (PDMS) nanocomposites, enabling theoretical predictions of composite's mechanical and piezoelectric properties. Specifically, both the Young's modulus and piezoelectric coefficient (<em>e</em><sub>33</sub>) of BNNTs decreased as their diameter increased. The vacancy defects had a complex effect on electromechanical properties of BNNTs. An increase in the number of defect atoms, dispersed vacancy defects, and circumferential defects significantly reduced the strength of BNNTs, whereas B atomic vacancies, symmetrical defects, and circumferential defects enhanced their piezoelectric performance. For BNNTs/PDMS composites, a larger BNNTs diameter and a moderate number of vacancy defects improved the interfacial bonding, which enhanced the Young's modulus and <em>e</em><sub>33</sub> values of composites. The BNNTs composites with circumferential defects exhibited higher mechanical strength than those with axial defects. These findings provided valuable insights into optimizing BNNTs diameter, defect management, and interfacial characteristics for designing high-performance piezoelectric nanocomposites for next-generation flexible devices.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"288 ","pages":"Article 110007"},"PeriodicalIF":7.1,"publicationDate":"2025-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143077803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Thermal-fluid-solid coupled dynamic modeling and validation for gear systems
IF 7.1 1区 工程技术
International Journal of Mechanical Sciences Pub Date : 2025-01-25 DOI: 10.1016/j.ijmecsci.2025.110010
Zhou Sun , Jinyuan Tang , Siyu Chen , Zehua Hu , Yuqin Wen , Jiling Chen , Ding Zhang , Zhiwei You , Hongtao Dong
{"title":"Thermal-fluid-solid coupled dynamic modeling and validation for gear systems","authors":"Zhou Sun ,&nbsp;Jinyuan Tang ,&nbsp;Siyu Chen ,&nbsp;Zehua Hu ,&nbsp;Yuqin Wen ,&nbsp;Jiling Chen ,&nbsp;Ding Zhang ,&nbsp;Zhiwei You ,&nbsp;Hongtao Dong","doi":"10.1016/j.ijmecsci.2025.110010","DOIUrl":"10.1016/j.ijmecsci.2025.110010","url":null,"abstract":"<div><div>Traditional dynamics (TD) modeling of gear systems assumes smooth surfaces and constant temperature fields, which limits its ability to correlate the dynamic response with surface topography, lubrication conditions, and operating temperature. As a result, it struggles to accurately predict system transmission performance under real service environments. To address these limitations, this work aims to develop an advanced dynamic modeling and numerical solution method that integrates the coupling of fluid, temperature, and solid fields. To efficiently obtain the system temperature field under dynamic loads, a steady-state thermal analysis method for the gear-shaft-bearing-housing system using the thermal network model is proposed, which can accurately load friction heat sources onto rough-surface gears under thermal-fluid-solid coupling. The multi-physics coupling of the dynamics model is achieved through the interaction of the friction coefficient, temperature distribution, and load distribution. Furthermore, a combined method of static parameter calculation and dynamic force iterative computation is introduced to enable rapid calculation of dynamic responses. The effectiveness of the proposed model is proven through comparisons with several experiments and traditional models. The analysis reveals that the temperature distribution depends on the multi-parameter competitive mechanism. The friction slightly impacts dynamic transmission error (DTE), but together with bearing nonlinearity, it increases vibration acceleration at low and high speeds, while thermal effects reduce resonance speed and vibration amplitude. This work offers theoretical guidance for understanding multi-physics coupling mechanisms and accurate modeling of gear system dynamics.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"288 ","pages":"Article 110010"},"PeriodicalIF":7.1,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143077804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spring stiffness and heterointerface effects on GaN/AlN double-layer composites polishing
IF 7.1 1区 工程技术
International Journal of Mechanical Sciences Pub Date : 2025-01-25 DOI: 10.1016/j.ijmecsci.2025.110005
Tan-Tai Do , Te-Hua Fang
{"title":"Spring stiffness and heterointerface effects on GaN/AlN double-layer composites polishing","authors":"Tan-Tai Do ,&nbsp;Te-Hua Fang","doi":"10.1016/j.ijmecsci.2025.110005","DOIUrl":"10.1016/j.ijmecsci.2025.110005","url":null,"abstract":"<div><div>The actual polishing depth is one of the most crucial polishing factors, consistently less than its designed value. Through three-dimensional Molecular Dynamics (MD) simulations, this research examines how the polishing tool with various spring stiffness interacts with the GaN/AlN double-layer composite model to investigate the formation and impact of hetero-junction surface. A single polishing tool attached to a spring in the typical polishing orientation has allowed for considering various grain spring constants. It is found that the heterointerface evolves from a periodic 6-petaled flower shape to a hexagonal network post-relaxation, featuring coherent regions, stacking faults, and misfit dislocations, with stress concentration due to lattice mismatch. Besides, as the spring stiffness constant increases, the dislocation density distribution in the workpiece increases while that in the heterointerface decreases, leading to a significant decrease in bear tensile stress atoms at the heterointerface after the polishing process.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"288 ","pages":"Article 110005"},"PeriodicalIF":7.1,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143077806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dynamic compressive behavior of Miura-ori metamaterials filled with shear thickening fluid
IF 7.1 1区 工程技术
International Journal of Mechanical Sciences Pub Date : 2025-01-25 DOI: 10.1016/j.ijmecsci.2025.110006
Huiliang Sun , Kwong Ming Tse , Nishar Hameed , Guoxing Lu
{"title":"Dynamic compressive behavior of Miura-ori metamaterials filled with shear thickening fluid","authors":"Huiliang Sun ,&nbsp;Kwong Ming Tse ,&nbsp;Nishar Hameed ,&nbsp;Guoxing Lu","doi":"10.1016/j.ijmecsci.2025.110006","DOIUrl":"10.1016/j.ijmecsci.2025.110006","url":null,"abstract":"<div><div>This study firstly explores the dynamic compression behavior and energy absorption characteristics of Miura-ori structures enhanced with shear thickening fluid (STF), highlighting the effects of incorporating non-Newtonian fluids into cellular constructs. Employing a combination of experimental and numerical methods, this research elucidates the superior mechanical properties of STF-enhanced Miura-ori structures compared with their unfilled counterparts, particularly under varying dynamic compression speeds. An extensive parametric analysis assesses the impact of geometric configurations of the Miura-ori (including wall thickness and cell count), STF concentration levels (10%, 20%, and 30%), and compression velocities on the energy dissipation processes. This examination reveals the complementary interaction between the fluid's rheological behavior and the structural mechanics, leading to a notable improvement in energy absorption and average crushing force in STF-filled Miura-ori configurations. These variations are systematically analyzed across different conditions such as wall thickness, number of cells, and STF concentration. The study further contrasts the energy absorption capabilities between STF-filled Miura-ori and honeycomb structures filled with STF. It also compares the performance of STF with other filling materials like water and silicone oil, underscoring the distinct benefits of STF attributable to its shear-thickening properties. These properties markedly enhance energy absorption during the plateau phase and modify the commencement of densification. The findings of this study offer valuable perspectives on the application potential of STF in Miura-ori frameworks for scenarios necessitating elevated energy absorption under dynamic loads.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"288 ","pages":"Article 110006"},"PeriodicalIF":7.1,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143077805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Thermo-Elasto-Hydrodynamic analysis of gas foil bearing considering thermal effects
IF 7.1 1区 工程技术
International Journal of Mechanical Sciences Pub Date : 2025-01-24 DOI: 10.1016/j.ijmecsci.2025.110008
Qi-hong Gao , Wen-jing Sun , Jing-zhou Zhang , Jian-zhong Li , Jing-yang Zhang
{"title":"Thermo-Elasto-Hydrodynamic analysis of gas foil bearing considering thermal effects","authors":"Qi-hong Gao ,&nbsp;Wen-jing Sun ,&nbsp;Jing-zhou Zhang ,&nbsp;Jian-zhong Li ,&nbsp;Jing-yang Zhang","doi":"10.1016/j.ijmecsci.2025.110008","DOIUrl":"10.1016/j.ijmecsci.2025.110008","url":null,"abstract":"<div><div>Gas foil bearings (GFBs) face complex fluid-solid-thermal coupling challenges and pronounced thermal effects in ultra-high-speed and miniaturized machinery. This study investigates the thermo-elasto-hydrodynamic (TEHD) behavior of bump-type gas foil journal bearing under a steady rotating speed of <em>ω</em> = 1 × 10<sup>5</sup> rpm during continuous loading process. A detailed three-dimensional numerical simulation integrating finite volume method (FVM) and the finite element method (FEM) is employed to get the coupled interactions between thermal effects, elastic deformation, and fluid lubrication. Results indicate that the increased load intensifies pressure-driven airflow variations, leading to suction and leakage effects at the axial bearing ends. The sharp rise in viscous-shearing heat in the gas film layer significantly elevates peak temperatures and creates non-uniform temperature distributions across the foil and shaft surfaces. This thermal imbalance results in substantial thermal deformation of the foils, with thermal expansion at the foils axial ends due to thermal stress release. The thermal deformation contributes 10∼25 % of the total deformation, while the intensity of thermal stresses comparable to that of elastic stress. This study is beneficial for accurately assessing bearing performance and provide valuable references for the design of GFBs.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"288 ","pages":"Article 110008"},"PeriodicalIF":7.1,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143173358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Weakened adhesion on elastic film via patterned adhesion
IF 7.1 1区 工程技术
International Journal of Mechanical Sciences Pub Date : 2025-01-24 DOI: 10.1016/j.ijmecsci.2025.109992
Kan Li , Zhihao Han , Haiyi Liang
{"title":"Weakened adhesion on elastic film via patterned adhesion","authors":"Kan Li ,&nbsp;Zhihao Han ,&nbsp;Haiyi Liang","doi":"10.1016/j.ijmecsci.2025.109992","DOIUrl":"10.1016/j.ijmecsci.2025.109992","url":null,"abstract":"<div><div>High strength of adhesion is vital for various creatures and engineering applications. However, strong adhesion between printed parts and the release film turns out to be an insurmountable obstacle in digital light processing (DLP) 3D printing technology, and adhesion weakening is highly desired to speed up the fabrication efficiency. In this work, a strategy of sector pattern is proposed to reduce the adhesion force of a rigid punch detaching from a pre-stretched film. A theoretical model is proposed and solved by Fourier–Bessel series method to analyze the decohesion mechanism. Complemented by finite element simulations, we see that the reduction ratio of pull-off force can be attributed to the shortened ratio of periphery length. The sector pattern of the adhesive area ratio <span><math><mrow><mn>1</mn><mo>/</mo><mn>2</mn></mrow></math></span> has the reduction ratio of <span><math><mrow><mn>1</mn><mo>/</mo><msqrt><mrow><mn>2</mn></mrow></msqrt></mrow></math></span> for JKR limit (film of low stiffness, strong interfacial adhesion) and <span><math><mrow><mn>1</mn><mo>/</mo><mn>2</mn></mrow></math></span> for DMT limit (film of large stiffness, low interfacial adhesion). The theoretical and numerical results are validated experimentally by decohesion between printed cylinder parts and a fluorinated ethylene propylene (FEP) film. Our study may deepen the understanding of the decohesion mechanism of patterned adhesion and provide a design criterion for reduced pull-off force in DLP 3D printing and similar engineering applications.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"288 ","pages":"Article 109992"},"PeriodicalIF":7.1,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143173357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Brain's strain-rate-enhancement characteristic and a strong nonlinear viscoelastic model
IF 7.1 1区 工程技术
International Journal of Mechanical Sciences Pub Date : 2025-01-23 DOI: 10.1016/j.ijmecsci.2025.110003
Jingyu Wang , Zexuan Chen , Taolin Sun , Zhenyu Jiang , Licheng Zhou , Zejia Liu , Yiping Liu , Bao Yang , Liqun Tang
{"title":"Brain's strain-rate-enhancement characteristic and a strong nonlinear viscoelastic model","authors":"Jingyu Wang ,&nbsp;Zexuan Chen ,&nbsp;Taolin Sun ,&nbsp;Zhenyu Jiang ,&nbsp;Licheng Zhou ,&nbsp;Zejia Liu ,&nbsp;Yiping Liu ,&nbsp;Bao Yang ,&nbsp;Liqun Tang","doi":"10.1016/j.ijmecsci.2025.110003","DOIUrl":"10.1016/j.ijmecsci.2025.110003","url":null,"abstract":"<div><div>It is widely recognized that brain tissue exhibits a significant strain rate effect. However, due to technical limitations, the mechanical behavior of brain tissue within the strain rate range of 100–500 s⁻¹ remains poorly understood, leaving the accuracy of existing constitutive models for brain tissue inadequately validated. In this study, we employed a Long Split Hopkinson Pressure Bar (LSHPB) system designed for ultra-soft materials to characterize the mechanical behavior of brain tissue at strain rates of 125 s⁻¹ and 340 s⁻¹, thereby addressing the research gap concerning brain tissue behavior under intermediate strain rates. By integrating experimental data from low and high strain rate tests (0.001 s⁻¹, 0.1 s⁻¹, 700 s⁻¹, 900 s⁻¹, and 1700 s⁻¹, respectively), we further observed a significant shift in the strain rate enhancement effect within the intermediate strain rate range. This suggests that current rate-dependent constitutive models are insufficient to accurately describe the comprehensive rate-dependent mechanical behavior of brain tissue. Consequently, we developed a highly nonlinear viscoelastic model capable of effectively describing the mechanical behavior of brain tissue across low, intermediate, and high strain rate ranges. Our work accurately characterizes the large deformation behavior of brain tissue under intermediate strain rates for the first time, revealing its strong nonlinear strain rate enhancement characteristics. Additionally, a suitable constitutive model is proposed. This study not only provides comprehensive insights into the rate-dependent mechanical behaviors of brain tissue but also holds great potential for improving the accuracy of Finite Element Head Modeling (FEHM).</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"288 ","pages":"Article 110003"},"PeriodicalIF":7.1,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143173360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimization of edge grinding process based on stress-strength induced boundary effect
IF 7.1 1区 工程技术
International Journal of Mechanical Sciences Pub Date : 2025-01-23 DOI: 10.1016/j.ijmecsci.2025.110004
Longfei Wang , Bin Lin , Bingrui Lv , Pengcheng Zhao , Jingguo Zhou , Tianyi Sui
{"title":"Optimization of edge grinding process based on stress-strength induced boundary effect","authors":"Longfei Wang ,&nbsp;Bin Lin ,&nbsp;Bingrui Lv ,&nbsp;Pengcheng Zhao ,&nbsp;Jingguo Zhou ,&nbsp;Tianyi Sui","doi":"10.1016/j.ijmecsci.2025.110004","DOIUrl":"10.1016/j.ijmecsci.2025.110004","url":null,"abstract":"<div><div>Grinding damage of a ceramic edge directly impacts subsequent machining efficiency and part service life. Edge damage suppression is one of the key research issues in ceramic processing. However, there is still a lack of optimization methods for edge quality control due to the complicated interaction between abrasives and edges. In this paper, the influence of abrasive movement direction on the boundary damage is investigated by scratch test. The export damage measurement is noticeably more severe than at the import, and the rate of change in export force is higher than at the import level. A stress-strength induced boundary effect is proposed and analyzed by FEM-SPH to explain the edge removal mechanism, indicating asymmetric coupling between the stress field and mechanical strength in edge grinding. Hence, an edge processing optimization method with import grinding is proposed. The method uses a tilted workpiece and a dressed wheel to achieve import-side contact and export-side separation. This method can improve edge quality and represent stability under different parameters. Experiments demonstrate that import grinding can reduce edge roughness by 50 %. This study has practical significance for understanding the mechanism of edge removal and optimizing the edge grinding process of hard and brittle materials.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"288 ","pages":"Article 110004"},"PeriodicalIF":7.1,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143172679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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