发布求助
文献互助 智能选刊 最新文献

Archives of Mechanics最新文献

筛选
英文 中文
Enhancement of bending fatigue life in TiNi shape-memory alloy tape by nitrogen ion implantation 氮离子注入提高TiNi形状记忆合金带的弯曲疲劳寿命
IF 0.8 4区 工程技术
Archives of Mechanics Pub Date : 2015-03-08 DOI: 10.24423/AOM.1862
K. Takeda, R. Matsui, H. Tobushi, S. Homma, N. Levintant-Zayonts, S. Kucharski
{"title":"Enhancement of bending fatigue life in TiNi shape-memory alloy tape by nitrogen ion implantation","authors":"K. Takeda, R. Matsui, H. Tobushi, S. Homma, N. Levintant-Zayonts, S. Kucharski","doi":"10.24423/AOM.1862","DOIUrl":"https://doi.org/10.24423/AOM.1862","url":null,"abstract":"A shape-memory alloy (SMA) is expected to be applied as intelligent or smart material since it shows the functional characteristics of the shape memory effect and superelasticity. Most SMA elements, with these characteristics, perform cyclic motions. In these cases, the fatigue property of SMA is one of the most important issues in view of evaluating functional characteristics of SMA elements. The fatigue properties are complex since they depend on stress, strain, temperature and their hysteresis. If an SMA is implanted with high-energy ions, the thermomechanical properties of the material may change, resulting in long fatigue life. In the present study, the nitrogen ion implantation was applied to modify the surface of a TiNi SMA tape and the influence of implantation treatment on the bending fatigue properties was investigated.","PeriodicalId":8280,"journal":{"name":"Archives of Mechanics","volume":"23 1","pages":"293-310"},"PeriodicalIF":0.8,"publicationDate":"2015-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68937284","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: 5
Influence of mixed boundary conditions and heterogeneity on the vibration behavior of orthotropic truncated conical shells 混合边界条件和非均质性对正交各向异性截锥壳振动特性的影响
IF 0.8 4区 工程技术
Archives of Mechanics Pub Date : 2015-03-08 DOI: 10.24423/AOM.1890
A. Sofiyev, S. Huseynov, N. Kuruoglu
{"title":"Influence of mixed boundary conditions and heterogeneity on the vibration behavior of orthotropic truncated conical shells","authors":"A. Sofiyev, S. Huseynov, N. Kuruoglu","doi":"10.24423/AOM.1890","DOIUrl":"https://doi.org/10.24423/AOM.1890","url":null,"abstract":"This paper presents the vibration behavior analysis of heterogeneous orthotropic conical shells with mixed boundary conditions. Basic equations of heterogeneous orthotropic truncated conical shells are derived using Donnell–Mushtari shell theory. Employing the separation of variables and Galerkin’s method, the expressions for frequency of heterogeneous orthotropic conical shells with two mixed boundary conditions are obtained. The results are validated through numerical comparisons with available results in the literature. The influences of truncated shell characteristics, heterogeneity, material orthotropy and mixed boundary conditions on dimensionless frequency parameters are investigated.","PeriodicalId":8280,"journal":{"name":"Archives of Mechanics","volume":"67 1","pages":"331-348"},"PeriodicalIF":0.8,"publicationDate":"2015-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68937309","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
Axisymmetric steady temperature field in FGM cylindrical shells with temperature-dependent heat conductivity and arbitrary linear boundary conditions 热导率随温度变化且具有任意线性边界条件的FGM圆柱壳轴对称稳态温度场
IF 0.8 4区 工程技术
Archives of Mechanics Pub Date : 2015-01-06 DOI: 10.24423/AOM.1815
A. Moosaie
{"title":"Axisymmetric steady temperature field in FGM cylindrical shells with temperature-dependent heat conductivity and arbitrary linear boundary conditions","authors":"A. Moosaie","doi":"10.24423/AOM.1815","DOIUrl":"https://doi.org/10.24423/AOM.1815","url":null,"abstract":"An approximate analytical solution to the axisymmetric heat conduction equation for a hollow cylinder made of functionally graded material with temperature-dependent heat conductivity is presented. General linear boundary conditions are considered. The Poincare method for regular perturbation problems is employed to obtain an analytical closed-form approximate solution for the temperature field. The hierarchical asymptotic problems are solved up to the second-order approximation. A numerical example is worked out, i.e., the one-dimensional heat conduction in the radial direction with prescribed temperatures at the boundaries. The approximate temperature profiles are compared with a numerical solution of the full nonlinear problem which provides the reference “exact” solution. A good agreement between the approximate and reference solutions is established. The convergence of the asymptotic series as well as the properties of the temperature field are studied.","PeriodicalId":8280,"journal":{"name":"Archives of Mechanics","volume":"67 1","pages":"233-251"},"PeriodicalIF":0.8,"publicationDate":"2015-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68937134","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: 14
Normal contact stiffness of fractal rough surfaces 分形粗糙表面法向接触刚度
IF 0.8 4区 工程技术
Archives of Mechanics Pub Date : 2014-11-20 DOI: 10.24423/AOM.1286
R. Buczkowski, M. Kleiber, G. Starzyński
{"title":"Normal contact stiffness of fractal rough surfaces","authors":"R. Buczkowski, M. Kleiber, G. Starzyński","doi":"10.24423/AOM.1286","DOIUrl":"https://doi.org/10.24423/AOM.1286","url":null,"abstract":"We used the fractal theory based on a single variable Weierstrass–Mandelbrot function to obtain the normal contact stiffness if rough and smooth isotropic surfaces are pressed against each other. Because in the original fractal theory the distribution of contact area is assumed geometrically, we propose the method in which the actual deformation of asperities and a correction due to asperity coupling (interaction) will be taken into account. This correction is equivalent to an increase of the effective separation by a quantity proportional to the nominal pressure and it has a significant effect on contact stiffness at larger normal loads (low separations). The numerical results demonstrate a nonlinear evolution of the contact stiffness with the normal load in particular in the first stage of loading at low squeezing pressures. We have compared the results of the theoretical contact stiffness using the fractal method with the experimental ultrasonic measurements. Experimental results made on real surfaces agree remarkably well with the theoretical predictions.","PeriodicalId":8280,"journal":{"name":"Archives of Mechanics","volume":"27 1","pages":"411-428"},"PeriodicalIF":0.8,"publicationDate":"2014-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68936195","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: 42
Rayleigh waves in an incompressible orthotropic half-space coated by a thin elastic layer 不可压缩正交各向异性半空间中的瑞利波
IF 0.8 4区 工程技术
Archives of Mechanics Pub Date : 2014-11-06 DOI: 10.24423/AOM.1296
P. C. Vinh, N. Linh, V. Anh
{"title":"Rayleigh waves in an incompressible orthotropic half-space coated by a thin elastic layer","authors":"P. C. Vinh, N. Linh, V. Anh","doi":"10.24423/AOM.1296","DOIUrl":"https://doi.org/10.24423/AOM.1296","url":null,"abstract":"The present paper is concerned with the propagation of Rayleigh waves in an orthotropic elastic half-space coated with a thin orthotropic elastic layer. The halfspace and the layer are both incompressible and they are in welded contact to each other. The main purpose of the paper is to establish an approximate secular equation of the wave. By using the effective boundary condition method an approximate secular equation of third-order in terms of the dimensionless thickness of the layer is derived. It is shown that this approximate secular equation has high accuracy. From it an approximate formula of third-order for the velocity of Rayleigh waves is obtained and it is a good approximation. The obtained approximate secular equation and formula for the velocity will be useful in practical applications.","PeriodicalId":8280,"journal":{"name":"Archives of Mechanics","volume":"66 1","pages":"173-184"},"PeriodicalIF":0.8,"publicationDate":"2014-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68936202","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: 8
Fractional continua for linear elasticity 线性弹性的分数连续体
IF 0.8 4区 工程技术
Archives of Mechanics Pub Date : 2014-11-06 DOI: 10.24423/AOM.1314
W. Sumelka, T. Blaszczyk
{"title":"Fractional continua for linear elasticity","authors":"W. Sumelka, T. Blaszczyk","doi":"10.24423/AOM.1314","DOIUrl":"https://doi.org/10.24423/AOM.1314","url":null,"abstract":"Fractional continua is a generalisation of the classical continuum body. This new concept shows the application of fractional calculus in continuum mechanics. The advantage is that the obtained description is non-local. This natural non-locality is inherently a consequence of fractional derivative definition which is based on the interval, thus variates from the classical approach where the definition is given in a point. In the paper, the application of fractional continua to one-dimensional problem of linear elasticity under small deformation assumption is presented.","PeriodicalId":8280,"journal":{"name":"Archives of Mechanics","volume":"66 1","pages":"147-172"},"PeriodicalIF":0.8,"publicationDate":"2014-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68936274","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: 51
Effect of hydrogen injection into natural gas on the mechanical strength of natural gas pipelines during transportation 天然气注氢对输送过程中天然气管道机械强度的影响
IF 0.8 4区 工程技术
Archives of Mechanics Pub Date : 2014-07-28 DOI: 10.24423/AOM.1219
S. Elaoud, B. Abdulhay, E. Hadj-Taieb
{"title":"Effect of hydrogen injection into natural gas on the mechanical strength of natural gas pipelines during transportation","authors":"S. Elaoud, B. Abdulhay, E. Hadj-Taieb","doi":"10.24423/AOM.1219","DOIUrl":"https://doi.org/10.24423/AOM.1219","url":null,"abstract":"The aim of this paper is to study the effect of hydrogen injection into natural gas transient flows on the mechanical strength of natural gas pipelines. The governing equations of hydrogen-natural gas mixtures are two nonlinear partial differential equations. The fluid pressure and velocity are considered as two principal dependent variables. The fluid is a homogeneous hydrogen-natural gas mixture for which the density is defined by an expression averaging the two gas densities where an adiabatic process is admitted for the two components. The problem has been solved by the nonlinear method of characteristics. By the use of Laplace’s law, the pipe’s circumferential stress has been analyzed for different hydrogen mass fraction in the mixture. It was then compared to the allowable stress of different grade pipeline steels used to transport natural gas. The obtained results have shown that the allowable stress for the natural gas pipelines is exceeded for some fractions of hydrogen in the hydrogen-natural gas mixtures.","PeriodicalId":8280,"journal":{"name":"Archives of Mechanics","volume":"66 1","pages":"269-286"},"PeriodicalIF":0.8,"publicationDate":"2014-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68935995","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: 6
Experimental analysis of density and compressive strain of porous metal with the use of Taylor test 用Taylor试验分析多孔金属的密度和压缩应变
IF 0.8 4区 工程技术
Archives of Mechanics Pub Date : 2014-07-28 DOI: 10.24423/AOM.1228
E. Włodarczyk, M. Sarzyński
{"title":"Experimental analysis of density and compressive strain of porous metal with the use of Taylor test","authors":"E. Włodarczyk, M. Sarzyński","doi":"10.24423/AOM.1228","DOIUrl":"https://doi.org/10.24423/AOM.1228","url":null,"abstract":"The article presents a new experimental method of analysis of density and longitudinal engineering compressive strain (LECS) in porous ductile rod, plastically deformed with a Taylor direct impact experiment (Taylor DIE). Two essential singularities in the distribution of the LECS are revealed, namely: maximum of the LECS e r max occurs near the rod striking end (Fig. 2), and at high impact velocities ( U > 100 m/s) e r max decreases along with an increase of the rod initial porosity, this behaviour is inverse to that under static loading. The dynamical density – LECS curves for porous copper are also presented in the paper. According to the authors’ best knowledge, these singularities have not been published in available literature so far.","PeriodicalId":8280,"journal":{"name":"Archives of Mechanics","volume":"66 1","pages":"245-256"},"PeriodicalIF":0.8,"publicationDate":"2014-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68936061","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: 2
Cross-properties of the effective conductivity of the regular array of ideal conductors 理想导体规则阵列有效电导率的交叉特性
IF 0.8 4区 工程技术
Archives of Mechanics Pub Date : 2014-07-28 DOI: 10.24423/AOM.1301
S. Gluzman, V. Mityushev, W. Nawalaniec
{"title":"Cross-properties of the effective conductivity of the regular array of ideal conductors","authors":"S. Gluzman, V. Mityushev, W. Nawalaniec","doi":"10.24423/AOM.1301","DOIUrl":"https://doi.org/10.24423/AOM.1301","url":null,"abstract":"We present an accurate expression for the effective conductivity of a regular square-lattice arrangement of ideally conducting cylinders, valid for arbitrary concentrations. The formula smoothly interpolates between the two asymptotic expressions derived for low and high concentrations of the cylinders. Analogy with critical phenomena is suggested and taken to the extent of calculating the superconductivity critical exponent and the particle-phase threshold from the very long expansions in concentration. The obtained formula is valid for all concentrations including touching cylinders, hence it completely solves with high accuracy the problem of the effective conductivity for the square array.","PeriodicalId":8280,"journal":{"name":"Archives of Mechanics","volume":"48 1","pages":"287-301"},"PeriodicalIF":0.8,"publicationDate":"2014-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68936252","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: 10
Vibration analysis of single-walled carbon nanotubes conveying nanoflow embedded in a viscoelastic medium using modified nonlocal beam model 基于修正非局部梁模型的单壁碳纳米管在粘弹性介质中传输纳米流的振动分析
IF 0.8 4区 工程技术
Archives of Mechanics Pub Date : 2014-07-28 DOI: 10.24423/AOM.1108
M. Hosseini, M. Sadeghi-Goughari, S. A. Atashipour, M. Eftekhari
{"title":"Vibration analysis of single-walled carbon nanotubes conveying nanoflow embedded in a viscoelastic medium using modified nonlocal beam model","authors":"M. Hosseini, M. Sadeghi-Goughari, S. A. Atashipour, M. Eftekhari","doi":"10.24423/AOM.1108","DOIUrl":"https://doi.org/10.24423/AOM.1108","url":null,"abstract":"In this study, the vibration and stability analysis of a single-walled carbon nanotube (SWCNT) coveying nanoflow embedded in biological soft tissue are performed. The effects of nano-size of both fluid flow and nanotube are considered, simultaneously. Nonlocal beam model is used to investigate flow-induced vibration of the SWCNT while the small-size effects on the flow field are formulated through a Knudsen number ( Kn ), as a discriminant parameter. Pursuant to the viscoelastic behavior of biological soft tissues, the SWCNT is assumed to be embedded in a Kelvin–Voigt foundation. Hamilton’s principle is applied to the energy expressions to obtain the higher-order governing differential equations of motion and the corresponding higher-order boundary conditions. The differential transformation method (DTM) is employed to solve the differential equations of motion. The effects of main parameters including Kn , nonlocal parameter and mechanical behaviors of the surrounding biological medium on the vibrational properties of the SWCNT are examined.","PeriodicalId":8280,"journal":{"name":"Archives of Mechanics","volume":"66 1","pages":"217-244"},"PeriodicalIF":0.8,"publicationDate":"2014-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68936313","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: 45
首页 上一页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信