Mechanics of Solids最新文献_第7页

Dynamics of Rotating Magneto-Thermoelastic Systems under Thermal Stress and Double Porosity 热应力和双重孔隙下旋转磁-热弹性系统的动力学

IF 0.9 4区工程技术

Mechanics of Solids Pub Date : 2025-08-03 DOI: 10.1134/S0025654425600023

Rania R. Yahya, AM Abd-Alla

{"title":"Dynamics of Rotating Magneto-Thermoelastic Systems under Thermal Stress and Double Porosity","authors":"Rania R. Yahya, AM Abd-Alla","doi":"10.1134/S0025654425600023","DOIUrl":"10.1134/S0025654425600023","url":null,"abstract":"The present work is devoted to studying behavior of a double porosity electro-magneto-thermoelastic material with double porous utilizing the GreenLindsay theory. The analysis considers the interactions within an isotropic, homogeneous, double porosity electro-magneto-half-space. Employing Lame’s potentials and normal mode techniques, we solve the dimensionless coupled governing equations of motion to derive analytical expressions for displacements, temperature, equilibrated stresses, shear stress, and normal stress. Additionally, various two-dimensional graphs are presented to illustrate the effects of parameters such as the magnetic field, thermal load, initial stress and rotation. The study also compares and discussed in the presence or absence of certain parameters. The results reveal that the presence of parameters and double porosity significantly increases the values of physical variables, especially with higher magnetic field, rotation and initial stress highlighting their considerable impact on the system’s dynamics. Specific cases are also discussed in the presence or absence of certain parameters. Although the problem is approached theoretically, the findings can be valuable across multiple scientific disciplines, including geophysics, earthquake engineering, and seismology, particularly for researchers involved in mining tremors and crustal drilling.","PeriodicalId":697,"journal":{"name":"Mechanics of Solids","volume":"60 4","pages":"2559 - 2574"},"PeriodicalIF":0.9,"publicationDate":"2025-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145242776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Split Hopkinson Pressure Bar Experiment and Distinct Element Research on Frozen Soil under Passive Confining Pressure 冻土被动围压下Hopkinson压杆劈裂试验及不同单元研究

IF 0.9 4区工程技术

Mechanics of Solids Pub Date : 2025-08-03 DOI: 10.1134/S0025654425601247

Zhanfan Chunyu, Zhiwu Zhu, Yue Ma, Tao Li, Zhengqiang Cheng

{"title":"Split Hopkinson Pressure Bar Experiment and Distinct Element Research on Frozen Soil under Passive Confining Pressure","authors":"Zhanfan Chunyu, Zhiwu Zhu, Yue Ma, Tao Li, Zhengqiang Cheng","doi":"10.1134/S0025654425601247","DOIUrl":"10.1134/S0025654425601247","url":null,"abstract":"Frozen soil is a common geological material, and blasting engineering and infrastructure construction are often conducted on cold regions. However, it is difficult to experimentally analyze crack development and quantify the evolution of damage in frozen soil that has been simultaneously subjected to axial impact loading and passive confining pressure. Thus, this study quantitatively evaluated the fractures and evolution of impact damage in frozen soil under passive confining pressure using numerical simulation. The Split Hopkinson Pressure Bar was used to conduct an impact experiment on frozen soil under passive confining pressure. Subsequently, numerical simulation modeling of the impact experiment was established using Particle Flow Code 3D and Fast Lagrangian Analysis of Continua 3D. When the frozen soil was simultaneously subjected to passive confining pressure and impact loading, the position and number of cracks were analyzed based on the results obtained numerically. The model and contact parameters could predict the mechanical response of the frozen soil. The evolution of the impact damage with strain in the frozen soil was found to agree with the Weibull distribution. Furthermore, the impact damage in the frozen soil was extremely low even during the initial stage of plasticity, and the strain threshold of the damage was 0.5%.","PeriodicalId":697,"journal":{"name":"Mechanics of Solids","volume":"60 4","pages":"2631 - 2647"},"PeriodicalIF":0.9,"publicationDate":"2025-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145242784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

A Study on a Novel Photothermal without Energy Dissipation Model in Semiconductor Materials 半导体材料新型无能量耗散光热模型的研究

IF 0.9 4区工程技术

Mechanics of Solids Pub Date : 2025-08-03 DOI: 10.1134/S0025654425600941

Ibrahim Abbas, Areej Almuneef, Iaa. A. El-Bary, Zuhur Alqahtani

引用次数: 0

Generalized Thermoelastic Diffusion Using the Eigenvalue Technique Due to Pulse Heat Flux 基于脉冲热通量特征值技术的广义热弹性扩散

IF 0.9 4区工程技术

Mechanics of Solids Pub Date : 2025-08-03 DOI: 10.1134/S0025654425601442

Areej Almuneef, Ibrahim Abbas, Alaa A. El-Bary, Zuhur Alqahtani

引用次数: 0

Estimation of Temperature in Biological Tissue Using the Atangana–Baleanu Fractional Model Caused by Laser Irradiation 用激光辐照引起的Atangana-Baleanu分数模型估计生物组织温度

IF 0.9 4区工程技术

Mechanics of Solids Pub Date : 2025-08-03 DOI: 10.1134/S0025654425600874

Areej Almuneef, Ibrahim Abbas, Alaa A. El-Bary, Zuhur Alqahtani

引用次数: 0

Evaluation of Constitutive Models for AA2024 Aluminum Alloy: Insights from Tensile and Rastegaev Compression Tests AA2024铝合金本构模型的评价：来自拉伸和拉斯特加耶夫压缩试验的见解

IF 0.9 4区工程技术

Mechanics of Solids Pub Date : 2025-08-03 DOI: 10.1134/S0025654425601429

Lai Dang Giang, Nguyen Van Chinh, Tran Duc Hoan, To Thanh Loan

{"title":"Evaluation of Constitutive Models for AA2024 Aluminum Alloy: Insights from Tensile and Rastegaev Compression Tests","authors":"Lai Dang Giang, Nguyen Van Chinh, Tran Duc Hoan, To Thanh Loan","doi":"10.1134/S0025654425601429","DOIUrl":"10.1134/S0025654425601429","url":null,"abstract":"This study presents a comprehensive evaluation of four widely used constitutive models—Hollomon, Ludwik, Swift, and Voce—in predicting the flow behavior of AA2024 aluminum alloy under both tensile and compressive loading conditions. True stress–strain curves were constructed from experimental tensile test data and extended to high-strain conditions (true strain up to 3.0) to assess their predictive accuracy through numerical simulations of the Rastegaev compression test. At small strains, the Ludwik model demonstrated the highest accuracy (R2 = 0.99414), followed by the Swift model, while the Voce and Hollomon models showed relatively lower accuracy. However, in the large-strain regime, the Voce model exhibited superior predictive performance, particularly due to its ability to represent stress saturation, with the lowest simulation error in the Rastegaev test. These findings highlight the importance of selecting appropriate constitutive models based on strain regime and loading type. The results provide valuable insights for improving the reliability of finite element simulations in bulk forming processes involving lightweight aluminum alloys. The validated models can support the optimization of industrial forming operations and enhance material behavior prediction in large-deformation conditions.","PeriodicalId":697,"journal":{"name":"Mechanics of Solids","volume":"60 4","pages":"2648 - 2659"},"PeriodicalIF":0.9,"publicationDate":"2025-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145242803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Assessment of the Instability of Conical Pipes Conveying Hot Flow Subjected to Different Boundary Conditions 不同边界条件下锥形热流管道的不稳定性评估

IF 0.9 4区工程技术

Mechanics of Solids Pub Date : 2025-08-03 DOI: 10.1134/S002565442560045X

A. R. Askarian, M. R. Permoon, M. Rahmanian

引用次数: 0

Dispersion Analysis of Love-Type Waves in a Multilayered Piezomagnetic-Heterogeneous Structure with a Viscous Liquid Layer 具有粘性液体层的多层压磁非均质结构中love型波的色散分析

IF 0.9 4区工程技术

Mechanics of Solids Pub Date : 2025-08-01 DOI: 10.1134/S0025654424607158

Seema, Abhinav Singhal, Umang Bareja

{"title":"Dispersion Analysis of Love-Type Waves in a Multilayered Piezomagnetic-Heterogeneous Structure with a Viscous Liquid Layer","authors":"Seema, Abhinav Singhal, Umang Bareja","doi":"10.1134/S0025654424607158","DOIUrl":"10.1134/S0025654424607158","url":null,"abstract":"Purpose. This paper examines Love-type wave transmission in a multilayered piezomagnetic (PM) and heterogeneous half-space (HHS) structure with a viscoelastic layer (VL) on top. Wave transmission behaviour is examined in magnetically open (MO) and magnetically closed (MS) circuit boundary conditions. The main study focuses on the dispersion behaviour of phase velocity of a Love-type wave influenced by the combination of VL, PM and HHS.The dispersion relation for Love-type waves was determined analytically, and phase velocity graphs were plotted and analysed using numerical simulations with Mathematica software. A comprehensive study was conducted to acquire the effects of significant variables on phase velocity, including material heterogeneity, piezomagnetic coupling, and viscoelastic layer thickness.The research results show the attenuation properties of the VL, PM, and HHS materials in MO and MS situations. Graphical comparisons show that piezomagnetic coupling caused the phase velocity curves to alter regularly, indicating its importance in wave propagation. The open and short circuit situations had nearly identical phase velocity, demonstrating that boundary limitations have little effect on how waves propagate.The model is limited to linear wave transmission and ignores nonlinear effects. Furthermore, the approach is based on idealized material qualities, which account for heterogeneity.The study’s findings can help build and improve energy harvesters, sensors, and wave manipulation instruments that use PM with viscoelastic coatings. Understanding the behaviour of surface waves is required for effective use in these structures.This article investigates Love-type surface wave transmission in a VL-PM-HHS composite structure that includes a viscoelastic layer, piezomagnetic material, and a heterogeneous half-space. It explores how material heterogeneity, piezomagnetic coupling, and viscoelastic attenuation affect phase velocity under magnetic circumstances.","PeriodicalId":697,"journal":{"name":"Mechanics of Solids","volume":"60 3","pages":"2135 - 2149"},"PeriodicalIF":0.9,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

The Uniaxial Rate Sensitivity Characteristics of Polymers at Uniaxial Tension Process under Loading Control Mode 加载控制模式下聚合物单轴拉伸过程的单轴速率敏感性特性

IF 0.9 4区工程技术

Mechanics of Solids Pub Date : 2025-08-01 DOI: 10.1134/S0025654425600837

E. Q. Liu, Y. F. Wang, X. Hao, G. S. Xiao, Y. Jia, J. B. Lin, X. G. Li, M. C. You

{"title":"The Uniaxial Rate Sensitivity Characteristics of Polymers at Uniaxial Tension Process under Loading Control Mode","authors":"E. Q. Liu, Y. F. Wang, X. Hao, G. S. Xiao, Y. Jia, J. B. Lin, X. G. Li, M. C. You","doi":"10.1134/S0025654425600837","DOIUrl":"10.1134/S0025654425600837","url":null,"abstract":"Uniaxial stretching is a commonly method for testing the mechanical properties of materials. The polymer materials are rate-sensitive due to their viscoelastoplastic behavior during loading. It is vital to consider the time-dependent characteristics of polymer mechanical behavior. The paper conducted creep and uniaxial tensile tests with different loading rates using Nylon 12 (PA12) as a typical polymer material, and the corresponding viscoelastic parameters were obtained through creep experiments. For the loading control mode condition, we can define a linear loading process in a stretching experiment with a certain stress rate. The loading process is divided into n equal segments, and the result is approximated as the sum of n step loading processes with a constant equivalent load. Based on these, a rate sensitivity model was constructed based on the generalized Kelvin model and superposition principle for uniaxial tension under the loading control mode. The results show that the model can match the experiential results well in the viscoelastic section of the tensile stress-strain curve. The model can effectively reflect the rate sensitivity characteristics of the viscoelastic section under loading control mode. However, a significant deviation begins to appear before entering the viscoelastic-plastic stage due to the small deformation assumption and the change of physical properties in the viscoplastic deformation stage of the material.","PeriodicalId":697,"journal":{"name":"Mechanics of Solids","volume":"60 3","pages":"2225 - 2233"},"PeriodicalIF":0.9,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Size-Dependent Thin Plate Dynamics: Investigating Anti-Plane and In-Plane Wave Propagation with Generalized Boundary Restraints 尺寸相关薄板动力学：研究具有广义边界约束的反平面和平面内波传播

IF 0.9 4区工程技术

Mechanics of Solids Pub Date : 2025-08-01 DOI: 10.1134/S0025654425601065

Mandeep Kaur, Satish Kumar, Vikas Sharma

{"title":"Size-Dependent Thin Plate Dynamics: Investigating Anti-Plane and In-Plane Wave Propagation with Generalized Boundary Restraints","authors":"Mandeep Kaur, Satish Kumar, Vikas Sharma","doi":"10.1134/S0025654425601065","DOIUrl":"10.1134/S0025654425601065","url":null,"abstract":"Despite extensive research on plates with either traction-free boundaries or rigidly fixed faces, many real-world situations involve boundary conditions that fall between these two extremes. To bridge the gap between these fundamental cases—traction-free and fixed-boundary conditions—it is reasonable to assume that the fields at the boundaries follow a Hooke-type law, representing elastic restraints at the surfaces. These generalized boundary conditions, known as Elastically Restrained Boundary Conditions (ERBC), are applied in the normal, shear, and rotational directions to study anti-plane (SH) and in-plane (P-SV) wave phenomena in a microstructural elastic plate, modeled using the consistent couple stress theory. The ERBC incorporate stiffness coefficients to relate normal, tangential, and rotational stresses to the corresponding displacements within the plate. Analytical derivation of the dispersion relations is carried out to examine the wave propagation characteristics under varying boundary conditions. Special cases, such as stress-free boundary conditions (similar to Rayleigh-Lamb type waves), mixed boundary conditions, and rigid boundary conditions, emerge as limiting cases. The study explores the influence of the characteristic length scale parameter (l) introduced by the consistent couple stress model, along with stiffness coefficients like normal stiffness, shear stiffness, and rotational stiffness, on wave propagation. It also investigates the transition between rigidly fixed and stress-free boundary conditions, offering insights into how different boundary conditions affect wave behavior in a thin microstructural elastic plate.","PeriodicalId":697,"journal":{"name":"Mechanics of Solids","volume":"60 3","pages":"2234 - 2256"},"PeriodicalIF":0.9,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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