Mechanics of Solids最新文献_第5页

Influence of Boundaries on the Dispersion of Rayleigh Waves in a Functionally Graded Pre-Stressed Orthotropic Substrate 功能梯度预应力正交各向异性基板中边界对瑞利波色散的影响

IF 0.9 4区工程技术

Mechanics of Solids Pub Date : 2025-08-26 DOI: 10.1134/S0025654425600515

Y. B. Darhas, N. Pradhan, S. Saha, A. Senapati, S. Pramanik

{"title":"Influence of Boundaries on the Dispersion of Rayleigh Waves in a Functionally Graded Pre-Stressed Orthotropic Substrate","authors":"Y. B. Darhas, N. Pradhan, S. Saha, A. Senapati, S. Pramanik","doi":"10.1134/S0025654425600515","DOIUrl":"10.1134/S0025654425600515","url":null,"abstract":"The current research investigates the propagation behavior of Rayleigh-type waves in a prestressed functionally graded orthotropic substrate. Two types of material gradation, exponential and logarithmic, are considered. The influence of these gradation profiles is analyzed under two boundary conditions: stress-free and rigid. The derived dispersion relations account for the effects of gradient parameters, initial stress, and density variations. A comprehensive numerical analysis is performed to evaluate the phase velocity and attenuation coefficient. The results reveal that both gradient types significantly affect the wave dispersion and attenuation behavior. Specifically, the exponential gradient induces stronger changes at lower and moderate wave numbers, while the logarithmic gradient affects attenuation more at lower wave numbers and phase velocity at higher wave numbers. The initial stress parameter is found to decrease phase velocity across wave numbers, while density variation shows contrasting behavior depending on the boundary type. The findings provide critical insights into material design, seismic analysis, and non-destructive testing techniques.","PeriodicalId":697,"journal":{"name":"Mechanics of Solids","volume":"60 4","pages":"2781 - 2799"},"PeriodicalIF":0.9,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145242778","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

Fractional Three-Phase-Lag Heat Transfer Model for Analyzing Perfect Conducting Thermelastic Hollow Cylinder 完美导电热塑性中空圆柱体的分数阶三相滞后传热模型

IF 0.9 4区工程技术

Mechanics of Solids Pub Date : 2025-08-26 DOI: 10.1134/S0025654425600977

A. Alansari

{"title":"Fractional Three-Phase-Lag Heat Transfer Model for Analyzing Perfect Conducting Thermelastic Hollow Cylinder","authors":"A. Alansari","doi":"10.1134/S0025654425600977","DOIUrl":"10.1134/S0025654425600977","url":null,"abstract":"This study presents a unified fractional three-phase-lag heat conduction model within the framework of Green–Naghdi thermoelasticity, formulated to describe the coupled magneto-electro-thermoelastic response of a perfectly conducting, infinitely long hollow cylinder subjected to a uniform axial magnetic field. The model introduces fractional-order derivatives to generalize classical and generalized thermoelastic theories (e.g., Biot, Lord–Shulman, GN types I–III) as limiting cases. A single fractional formulation governed by three phase-lag parameters enables a seamless transition across different heat transport behaviors while capturing nonlocal and memory effects. Field equations are derived using Laplace transforms and solved semi-analytically. Numerical inversions provide time-domain distributions of temperature, stress, displacement, and induced electromagnetic fields. Results show that the fractional order significantly influences thermal and mechanical wave propagation, suppressing displacement while amplifying induced magnetic fields. The model offers new insight into the thermal response of materials with memory, and the unified structure supports broader applicability in material characterization and advanced engineering systems.","PeriodicalId":697,"journal":{"name":"Mechanics of Solids","volume":"60 4","pages":"2858 - 2873"},"PeriodicalIF":0.9,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145242786","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

Modelling the Evolution of Eigenstrains and Residual Stresses During Wall Deposition on a Substrate by Wire-Arc Surfacing 电弧丝堆焊衬底壁沉积过程中特征应变和残余应力的演化模型

IF 0.9 4区工程技术

Mechanics of Solids Pub Date : 2025-08-26 DOI: 10.1134/S0025654425601296

N. K. Salikhova, D. S. Dudin, I. E. Keller, G. L. Permyakov, D. N. Trushnikov

{"title":"Modelling the Evolution of Eigenstrains and Residual Stresses During Wall Deposition on a Substrate by Wire-Arc Surfacing","authors":"N. K. Salikhova, D. S. Dudin, I. E. Keller, G. L. Permyakov, D. N. Trushnikov","doi":"10.1134/S0025654425601296","DOIUrl":"10.1134/S0025654425601296","url":null,"abstract":"The regularities of residual stress formation and distortion of the product shape occurring during wire-arc surfacing are studied. Therefore, the results of full-scale experiments carried out by Cranfield University are reproduced numerically. In the experiments, surfacing of wire material is carried out in 9, 10, and 18 layers on a fixed substrate along a reciprocating path at a speed of 10 mm/s, including interlayer roller burnishing with variable pressure. The numerical modelling includes several stages, during which the following uncoupled problems are sequentially solved: a) thermal – surfacing of 9 to 18 layers of wire material, b) thermal elastic-plastic – formation of eigenstrains and residual stresses due to air cooling of the deposited wall with non-uniform temperature distribution, c) thermal elastic-plastic – forging of a stressed workpiece with a pneumatic tool at elevated temperature (the stage may be omitted), and d) elastic-plastic – changes in the field of residual stresses and distortion of the structure after its release. The problem of thermal conductivity (a), as well as the problems of deformation (b), and (d) during surfacing of wire material are implemented in the Comsol Multiphisics software package, and the problem (c) is solved in the LS-DYNA software package. In addition, an “engineering” beam-rod structural model of the built-up wall is developed, which makes it possible to predict the wall distortions and the distribution of eigenstrains and residual stresses along its height, and verify the numerical calculation. This model represents the magnitude of longitudinal bending of the specimen during surfacing, but excessively takes into account the effect of roller burnishing. Even a single roller burnishing causes the bending of the structure in the opposite direction, while in the experiment it only straightens.","PeriodicalId":697,"journal":{"name":"Mechanics of Solids","volume":"60 4","pages":"2516 - 2530"},"PeriodicalIF":0.9,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145242631","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 Review of Static and Dynamic Analysis in Functionally Graded Materials with Material Nonlinearities 具有材料非线性的功能梯度材料静力与动力分析综述

IF 0.9 4区工程技术

Mechanics of Solids Pub Date : 2025-08-26 DOI: 10.1134/S0025654425601764

Juneed Yawar, Mohammad Mursaleen Butt, Sheikh Nazir Ahmad, V. L. Sateesh

{"title":"A Review of Static and Dynamic Analysis in Functionally Graded Materials with Material Nonlinearities","authors":"Juneed Yawar, Mohammad Mursaleen Butt, Sheikh Nazir Ahmad, V. L. Sateesh","doi":"10.1134/S0025654425601764","DOIUrl":"10.1134/S0025654425601764","url":null,"abstract":"Functionally Graded Materials (FGMs) are a revolutionary class of materials whose properties are varied along specific dimensions, allowing properties that are as diverse as mechanical strength and thermal resistance to be integrated in one member. This unique property makes FGMs very suitable for advanced engineering applications in aerospace, biomedical, and energy industries. This review focuses on static and dynamic behaviors, material gradation, and nonlinearities of FGMs. Advanced computational techniques have been used, considering Finite Element Method (FEM) and many other methods, in order to highlight the strong influence of material gradation on important issues such as the investigation of stress distribution, deformation, vibration, and wave propagation. Despite these promising advances, poor experimental validation, the relatively unexplored multidirectional FGMs, and a lack of understanding concerning environmental effects are still major challenges. Specific gaps to be addressed relate to scalable manufacturing techniques, sustainability-driven production methods, and rigorous experimental validation with the aim of achieving long-term reliability in real service conditions. This review uniquely integrates insights on computational modeling and sustainable manufacturing while charting a roadmap for future research. FGMs will no doubt bridge the existing gaps and bring about a revolution in engineering, innovate, and meet the ever-evolving demands of state-of-the-art technologies.","PeriodicalId":697,"journal":{"name":"Mechanics of Solids","volume":"60 4","pages":"3031 - 3057"},"PeriodicalIF":0.9,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145242760","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

Shear Wave Propagation in Inhomogeneous Multi-Layered Elastic Cylinders between Winkler Foundations 温克勒地基间非均匀多层弹性圆柱中的剪切波传播

IF 0.9 4区工程技术

Mechanics of Solids Pub Date : 2025-08-26 DOI: 10.1134/S0025654425600680

Ali M. Mubaraki, Amnah M. Alharbi, Fatimah Al-Mutairi

引用次数: 0

Strike-Slip Dislocation in Two Perfectly Coupled Orthotropic and Transversely Elastic Half-Spaces 两个完全耦合正交各向异性和横向弹性半空间中的走滑位错

IF 0.9 4区工程技术

Mechanics of Solids Pub Date : 2025-08-26 DOI: 10.1134/S0025654425600989

Agin Kumari, Ritu Goyal, Sahil Kukreja, Dinesh Kumar Madan, Kuldeep Singh, Vinod Kumar

引用次数: 0

Investigation on Dynamic Behavior of a Porous FGM Sandwich Doubly Curved Plate under Multiple Blast Loads 多重爆炸荷载作用下多孔FGM夹层双弯曲板动力特性研究

IF 0.9 4区工程技术

Mechanics of Solids Pub Date : 2025-08-26 DOI: 10.1134/S0025654425601235

Yang Yang, Yi-Nan Qi, Hong-Liang Dai

{"title":"Investigation on Dynamic Behavior of a Porous FGM Sandwich Doubly Curved Plate under Multiple Blast Loads","authors":"Yang Yang, Yi-Nan Qi, Hong-Liang Dai","doi":"10.1134/S0025654425601235","DOIUrl":"10.1134/S0025654425601235","url":null,"abstract":"Porous functional gradient material (FGM) sandwich structures are widely used in various fields. However, the study of their dynamic response under multiple blast excitations is lacking. This paper develops a nonlinear dynamic model of a porous FGM sandwich hyperbolic panel based on Winkler-Pasternak elastic foundation and von Kármán strain-displacement relations. The model comprehensively incorporates the effect of material inhomogeneity, geometric nonlinearity, and time-varying blast loading for the first time. Subsequently, a numerical solution strategy is constructed by coupling the finite difference method in the spatial domain with the Newmark method in the time domain. In addition, the effects of porosity distribution, geometric parameters, foundation stiffness, and blast load parameters on the structural response frequency, deflection amplitude, and damping performance are investigated. Results reveal that sandwich panels with uniformly distributed porosity in the FGM exhibit superior dynamic stability and blast resistance under repeated explosive loads. The findings can provide theoretical support and engineering guidance for the blast-resistant design and intelligent optimization of novel porous FGM sandwich composite structures.","PeriodicalId":697,"journal":{"name":"Mechanics of Solids","volume":"60 4","pages":"2915 - 2933"},"PeriodicalIF":0.9,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145242714","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

Seismic Response Analysis of Quasi-Saturated Saturated Soil Site under Plane P-Wave Incidence 准饱和饱和土体在平面纵波作用下的地震反应分析

IF 0.9 4区工程技术

Mechanics of Solids Pub Date : 2025-08-26 DOI: 10.1134/S0025654425601260

Xiangdong Zhao, Bin Hou, Chenting Jiao

{"title":"Seismic Response Analysis of Quasi-Saturated Saturated Soil Site under Plane P-Wave Incidence","authors":"Xiangdong Zhao, Bin Hou, Chenting Jiao","doi":"10.1134/S0025654425601260","DOIUrl":"10.1134/S0025654425601260","url":null,"abstract":"In order to explore the difference of site seismic response between quasi-saturated soil layer and saturated soil layer under elastic wave incidence, based on the theory of quasi-saturated porous media, the dynamic response of quasi-saturated soil foundation overlying bedrock layer is studied. By establishing the mathematical model of quasi-saturated porous medium and single-phase elastic medium, the seismic response of quasi-saturated soil foundation site is analyzed. The governing equations of the quasi-saturated soil layer are derived by using the Biot theory, and the potential function expression of the wave field is obtained by combining the Helmholtz vector decomposition principle. The correctness of the model is verified by numerical examples, and the effects of saturation, porosity, permeability coefficient, viscosity coefficient, stiffness ratio and incident angle on the surface movement of the saturated soil foundation are discussed in detail. The results show that the existence of gas phase in the quasi-saturated soil layer has a significant effect on the ground motion. The vertical displacement of the surface decreases with the increase of saturation, while the horizontal displacement shows the opposite trend. The surface displacement amplitude is greatly affected by the change of porosity, and the permeability coefficient and viscosity coefficient have little effect on the surface displacement amplitude. It is worth noting that when the saturation Sr = 1, that is, when the quasi-saturated soil foundation degenerates into a saturated soil foundation, the maximum difference between the vertical displacement amplitude corresponding to the saturation Sr = 0.97 reaches 94%, and the horizontal displacement amplitude.","PeriodicalId":697,"journal":{"name":"Mechanics of Solids","volume":"60 4","pages":"2934 - 2945"},"PeriodicalIF":0.9,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145242646","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

Study on the Guiding Law of Holes on the Crack Propagation Behavior under Impact Load 冲击载荷作用下孔洞对裂纹扩展行为的引导规律研究

IF 0.9 4区工程技术

Mechanics of Solids Pub Date : 2025-08-26 DOI: 10.1134/S002565442560165X

Meng Li, Haotong Zhao, Shuai Gao, Ruifeng Liu, Binbin Hao, Pu Gao, Peng Wang

{"title":"Study on the Guiding Law of Holes on the Crack Propagation Behavior under Impact Load","authors":"Meng Li, Haotong Zhao, Shuai Gao, Ruifeng Liu, Binbin Hao, Pu Gao, Peng Wang","doi":"10.1134/S002565442560165X","DOIUrl":"10.1134/S002565442560165X","url":null,"abstract":"There are a large number of primary and regenerated defects in the rock mass of deep underground engineering, such as primary joints, regenerated cracks and geological holes. When the cracks are subjected to external loads, especially dynamic loads, the dynamic fracture phenomenon will occur. The uncontrolled propagation of cracks will further aggravate the fragmentation of roadway surrounding rock and reduce its stability. To this end, this article simplifies geological fractures into a prefabricated crack and anchor bolt drilling into a single circular hole, thus constructing three types of single crack single hole board experimental configurations (SCSH) with horizontal, vertical, and single hole size variations. The Split Hopkinson Pressure Bar test system (SHPB) is used to explore the influence of single hole on the dynamic fracture behavior of cracks under dynamic load. The effect of physical experiment is verified by the explicit dynamic software AUTODYN, and its influence mechanism is further explored. The results show: (1) as the distance between the circular hole and the tip of the pre-crack increases along the crack direction and propagates to the vicinity of the circular hole, the propagation path tends to the hole; (2) as the increase of vertical distance between hole and pre-crack, the guiding stress field at the tip of the propagating crack and the guiding effect of the hole on the crack are both gradually decrease; (3) with the diameter increase of the hole, which presents a significant guiding phenomenon for the crack dynamic propagation, however, when the hole diameter is less than a certain value, it will have no guiding effect on crack propagation. The research results of this paper can provide strong theoretical support for the corresponding prevention and control measures to ensure the stability of roadway surrounding rock in underground impact pressure mines.","PeriodicalId":697,"journal":{"name":"Mechanics of Solids","volume":"60 4","pages":"2980 - 2999"},"PeriodicalIF":0.9,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145242773","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

Wave Propagation Analysis in Thermoelastic Media Using Modified Couple Stress and Higher-Order Phase-Lag Approaches 热弹性介质中波传播的修正耦合应力和高阶相位滞后分析

IF 0.9 4区工程技术

Mechanics of Solids Pub Date : 2025-08-26 DOI: 10.1134/S0025654425600965

Saurav Sharma, Rajneesh Kumar, S. M. Abo-Dahab, Montaser Fekry, Saad Althobaiti

{"title":"Wave Propagation Analysis in Thermoelastic Media Using Modified Couple Stress and Higher-Order Phase-Lag Approaches","authors":"Saurav Sharma, Rajneesh Kumar, S. M. Abo-Dahab, Montaser Fekry, Saad Althobaiti","doi":"10.1134/S0025654425600965","DOIUrl":"10.1134/S0025654425600965","url":null,"abstract":"The present study focuses on wave analysis in modified couple stress thermoelastic diffusion with multiple mode. After converting the governing equation into two-dimensional case, equations are mode dimensionless and potential functional are used for further simplification. Normal mode approach is applied to solve the problem. This approach is a powerful technique that provide apt with no presumable restriction on displacement, temperature and chemical potential and stress distribution. For stress free isothermal and isochemical potential, frequency equation is determined for wave propagation mode. Analytical solutions for displacements, temperature, and stresses have been obtained as functions of all external parameters inserted on the wave propagation phenomenon. Specific loss and penetration depth are computed numerically are presented in form of graphs to illustrate the impacts of three phase lag and one relaxation time. A comparison has been made between the thermal phase lags considered. The results obtained indicated to the strong impact of the modified couple stress and multi-phase-lag on waves analysis in the context of thermoelasticity and has applicable applications in diverse fields as geophysics, astronomy, engineering and acoustics.","PeriodicalId":697,"journal":{"name":"Mechanics of Solids","volume":"60 4","pages":"3132 - 3144"},"PeriodicalIF":0.9,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145242807","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