International Journal of Engineering Science最新文献_第3页

Analysis of fracture parameters for partially electrically conducting and partially insulated crack in a homogeneous piezoelectric material 均质压电材料部分导电部分绝缘裂纹断裂参数分析

IF 5.7 1区工程技术

International Journal of Engineering Science Pub Date : 2025-03-23 DOI: 10.1016/j.ijengsci.2025.104246

Victor Adlucky , Volodymyr Loboda , Yuri Lapusta

引用次数: 0

Wave dispersion relations in peridynamics: Influence of kernels and similarities to nonlocal elasticity theories 周动力学中的波频散关系：核的影响及其与非局部弹性理论的相似性

IF 5.7 1区工程技术

International Journal of Engineering Science Pub Date : 2025-03-22 DOI: 10.1016/j.ijengsci.2025.104256

Victor A. Eremeyev , Konstantin Naumenko

引用次数: 0

Modelling visco-hyperelastic response of Silicone based elastomers for soft robotics and foldable structure applications 柔性机器人和可折叠结构中硅基弹性体粘弹性响应建模

IF 5.7 1区工程技术

International Journal of Engineering Science Pub Date : 2025-03-22 DOI: 10.1016/j.ijengsci.2025.104253

Siddhesh S. Kulkarni , Nahom M. Bayre , Kamran A. Khan

{"title":"Modelling visco-hyperelastic response of Silicone based elastomers for soft robotics and foldable structure applications","authors":"Siddhesh S. Kulkarni , Nahom M. Bayre , Kamran A. Khan","doi":"10.1016/j.ijengsci.2025.104253","DOIUrl":"10.1016/j.ijengsci.2025.104253","url":null,"abstract":"<div><div>Silicone elastomers play a critical role in the construction of soft robotics and foldable devices, owing to their exceptional versatility and mobility. This necessitates the development of innovative approaches in constitutive modeling to accurately simulate their behavior and optimize the design of such devices. Samples from five elastomers namely Smooth Sil 936, Clearflex 30, Dragon Skin 10 SLOW, Dragon Skin FX-Pro, Ecoflex 00–30, were subjected to both monotonic tensile tests and cyclic tests following the ASTM D412 standard. Smooth Sil 936 exhibited the highest stiffness and was selected for viscoelastic experimental characterization. To comprehend the time-dependent and quasi-static stress response of Smooth Sil 936, a series of tensile tests were conducted at various deformation rates, along with single-step relaxation tests. A database of material parameters for finite element analysis was established by performing hyperelastic modelling with and without Mullin's effect for all elastomers. A visco-hyperelastic model was proposed for elastomeric materials, effectively capturing their time-dependent hyperelastic stress response and accounting for Mullin's effect during cyclic loading. This model was calibrated using specific parameters for Smooth Sil 936, and the simulation results demonstrated good agreement with experimental data.</div></div>","PeriodicalId":14053,"journal":{"name":"International Journal of Engineering Science","volume":"211 ","pages":"Article 104253"},"PeriodicalIF":5.7,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143678396","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

Thermodynamics-based modelling of undrained viscoplastic flow deformation in granular material 颗粒材料不排水粘塑性流动变形的热力学建模

IF 5.7 1区工程技术

International Journal of Engineering Science Pub Date : 2025-03-18 DOI: 10.1016/j.ijengsci.2025.104251

Yang Xiao , Fang Liang , Zhichao Zhang

{"title":"Thermodynamics-based modelling of undrained viscoplastic flow deformation in granular material","authors":"Yang Xiao , Fang Liang , Zhichao Zhang","doi":"10.1016/j.ijengsci.2025.104251","DOIUrl":"10.1016/j.ijengsci.2025.104251","url":null,"abstract":"<div><div>In this paper, the thermodynamics of granular material is developed to get constitutive relations for unified modelling of undrained viscoplastic flow behavior with complex combined effects of state, rate, time, and path. The proposed formulations of energy storages and dissipations lead to the state-dependent hyperelasticity with an elastic instable region and the viscoplasticity with considerations of the granular kinetic flow. Subjected to strict thermodynamic restraints, a generalized law of viscoplastic shear flow is proposed for granular material as the combination of state-based and rate-based viscoplastic flows, which predictively captures the diversity of undrained granular flow pattern with elastic-plastic coupled non-coaxialities among stresses, (total/viscoplastic/elastic) strains, and their increments. The viscoplastic flow is also linked with the granular temperature that accounts for the granular kinetic fluctuation varying from dilative dense flow to large unlimited flow under shear-induced static liquefaction. This enables predictions of the creep and the stress relaxation as well as the over- and -under shooting of stress under stepwise changes in strain rate. The model is well validated by predicting the flow potential, phase transformation, critical state, and rate/time effects under undrained conventional triaxial shearing and simple shearing for Toyoura sand, which are strongly related to the void ratio, the confining pressure, the shear stress, and the shear mode.</div></div>","PeriodicalId":14053,"journal":{"name":"International Journal of Engineering Science","volume":"211 ","pages":"Article 104251"},"PeriodicalIF":5.7,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642902","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

Non-uniform perturbation temperature of thermoelectric material due to a smooth inhomogeneity 热电材料的光滑不均匀性引起的非均匀扰动温度

IF 5.7 1区工程技术

International Journal of Engineering Science Pub Date : 2025-03-12 DOI: 10.1016/j.ijengsci.2025.104224

Zhaohang Lee, Wennan Zou

{"title":"Non-uniform perturbation temperature of thermoelectric material due to a smooth inhomogeneity","authors":"Zhaohang Lee, Wennan Zou","doi":"10.1016/j.ijengsci.2025.104224","DOIUrl":"10.1016/j.ijengsci.2025.104224","url":null,"abstract":"<div><div>The two-dimensional thermoelectric coupling conduction problem of an inhomogeneity, which is characterized by a Laurent polynomial and embedded in a thermoelectric material subjected to uniform electric current density or uniform energy flux at infinity, is studied under the conditions of the electrical insulation and thermal conduction continuity. While the complex potential denoting the electric field has a compact form, the complex potential indicating the temperature field can be treated as a boundary value problem of analytic function. Then, an iterative strategy is developed to solve the series solution of the temperature fields inside and outside the inhomogeneity, expressed by Faber polynomials and their associated polynomials. Finally, the non-uniform temperature fields for the inhomogeneities shaped elliptic and polygonal shapes are carried out in a series form. After the convergence is guaranteed, the results are analyzed to show that the inhomogeneities with different shape characteristics exhibit different effects on the temperature distribution, and the temperature perturbation increase on the boundary is primarily determined by the relative thermal conductivity of the matrix to the inhomogeneity. The maximum curvature can be used to determine the severity of the maximum temperature perturbation on the boundary of inhomogeneities with the same area.</div></div>","PeriodicalId":14053,"journal":{"name":"International Journal of Engineering Science","volume":"211 ","pages":"Article 104224"},"PeriodicalIF":5.7,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601364","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

Peculiarities of hydraulic fracture propagation in media with heterogeneous toughness: The energy balance, elastic battery and fluid backflow 非均质韧性介质中水力裂缝扩展的特性：能量平衡、弹性电池和流体回流

IF 5.7 1区工程技术

International Journal of Engineering Science Pub Date : 2025-03-10 DOI: 10.1016/j.ijengsci.2025.104237

Daniel Peck , Gaspare Da Fies , Ivan Virshylo , Gennady Mishuris

引用次数: 0

On three-dimensional dynamics of smart rotating micro-disks 智能旋转微盘的三维动力学研究

IF 5.7 1区工程技术

International Journal of Engineering Science Pub Date : 2025-03-07 DOI: 10.1016/j.ijengsci.2025.104236

Shahriar Dastjerdi , Mohammad Malikan , Masoud Tahani , Mehran Kadkhodayan , Amir Ameli

{"title":"On three-dimensional dynamics of smart rotating micro-disks","authors":"Shahriar Dastjerdi , Mohammad Malikan , Masoud Tahani , Mehran Kadkhodayan , Amir Ameli","doi":"10.1016/j.ijengsci.2025.104236","DOIUrl":"10.1016/j.ijengsci.2025.104236","url":null,"abstract":"<div><div>In this paper, three-dimensional (3D) dynamic analysis of a rotational smart piezomagnetic-flexomagnetic (PFM) multi-functional micro-disk has been investigated. In the mathematical modeling, an attempt has been made to develop a wide range of factors influencing the analyzed structure, which is intended to be used as a micro-sensor/actuator. The investigated smart micro-disk could have many sensitive and accurate applications, especially in the aerospace industry. The geometry is assumed to be an annular microscale structure. Flexomagnetic property, observable on the small scale, has been considered for the material of the analyzed disk, and is one of the principal factors influencing the present research. Due to the angular rotation of the annular micro-disk, it is possible to control the sensing process in delicate conditions, particularly in environments influenced by microgravity. A comprehensive dynamic simulation is performed according to the 3D elasticity, then the governing equations of the smart micro-disk are extracted using the energy method. The effect of several parameters on the numerical results has been thoroughly examined. The deformation results, based on the piezo-flexomagnetic effect of the analyzed structure, have been obtained, enabling the design of precise sensors/actuators for advanced technological applications. The presented theoretical model offers a suitable approach for extending experimental tasks. It should be noted that the equations presented in this paper are original and can serve as a benchmark reference in this field. In conclusion, we found that there is a direct link between the rotational speed of the micro-disk and the surrounding magnetic field, and high angular velocities can impede the influence of the magnetic-induced mechanical load.</div></div>","PeriodicalId":14053,"journal":{"name":"International Journal of Engineering Science","volume":"211 ","pages":"Article 104236"},"PeriodicalIF":5.7,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143563129","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

Compliances and resistances of cracks with multiple contacts between faces: An overview 面间多接触裂纹的顺应性和阻力：综述

IF 5.7 1区工程技术

International Journal of Engineering Science Pub Date : 2025-03-07 DOI: 10.1016/j.ijengsci.2025.104235

A. Markov , S. Kanaun , M. Kachanov

引用次数: 0

Critical remarks on the paper “Analytical solutions and case studies on stress-dependent corrosion in pressurized spherical vessels” by Liu & Lacidogna (2023) 对Liu & Lacidogna（2023）的论文“压力球形容器中应力依赖性腐蚀的分析解决方案和案例研究”的关键评论

IF 5.7 1区工程技术

International Journal of Engineering Science Pub Date : 2025-03-06 DOI: 10.1016/j.ijengsci.2025.104238

Yulia G. Pronina

引用次数: 0

Edge dislocation in an elastic sphere 弹性球中的边缘位错

IF 5.7 1区工程技术

International Journal of Engineering Science Pub Date : 2025-02-20 DOI: 10.1016/j.ijengsci.2025.104226

Dmitry A. Petrov , Mikhail Yu. Gutkin , Anna L. Kolesnikova , Alexey E. Romanov

{"title":"Edge dislocation in an elastic sphere","authors":"Dmitry A. Petrov , Mikhail Yu. Gutkin , Anna L. Kolesnikova , Alexey E. Romanov","doi":"10.1016/j.ijengsci.2025.104226","DOIUrl":"10.1016/j.ijengsci.2025.104226","url":null,"abstract":"<div><div>For the first time, an analytical solution is derived for the boundary-value problem in the theory of elasticity for a straight edge dislocation axially piercing an elastic sphere. The solution is given by the sum of the well-known stress fields of the dislocation placed in an infinite elastic medium and the image stress fields caused by the presence of the sphere free surface. To get the second term, a classical method of solving the boundary-value problems in elastic sphere is used. It is based on the Trefftz representation of the displacement vector and implies finding vector and scalar harmonic functions. Here these functions are found and expressed analytically in terms of infinite series with Legendre and associated Legendre polynomials. The results are visualized with stress-field maps in different cross sections of the sphere. It is shown that the free surface significantly changes the stress fields with respect to the infinite case and introduces the following new features: the anti-plane shear stress components, the change of the stress sign near the surface, new singularities at the points where the dislocation crosses the surface. The dislocation strain energy in the system is also provided and discussed in detail.</div></div>","PeriodicalId":14053,"journal":{"name":"International Journal of Engineering Science","volume":"210 ","pages":"Article 104226"},"PeriodicalIF":5.7,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143454166","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