The ACM journal covers a broad spectrum of topics in all fields of applied and computational mechanics with special emphasis on mathematical modelling and numerical simulations with experimental support, if relevant. Our audience is the international scientific community, academics as well as engineers interested in such disciplines. Original research papers falling into the following areas are considered for possible publication:    solid mechanics,  mechanics of materials,  thermodynamics,  biomechanics and mechanobiology,  fluid-structure interaction,  dynamics of multibody systems,  mechatronics,  vibrations and waves,  reliability and durability of structures,  structural damage and fracture mechanics,  heterogenous media and multiscale problems,  structural mechanics,  experimental methods in mechanics.  This list is neither exhaustive nor fixed.

The journal Applied and Computational Mechanics covers a wide range of topics in all fields of applied and computational mechanics, with a special emphasis on mathematical modeling and numerical simulations, supported by experimental data when relevant. Our audience includes the international scientific community, as well as academics and engineers interested in these disciplines. We consider original research papers for publication in the following areas: solid mechanics, mechanics of materials, thermodynamics, biomechanics and mechanobiology, fluid-structure interaction, dynamics of multibody systems, mechatronics, vibrations and waves, reliability and durability of structures, structural damage and fracture mechanics, heterogeneous media and multiscale problems, structural mechanics, and experimental methods in mechanics. This list is neither exhaustive nor fixed.

《Applied and Computational Mechanics》期刊涵盖了应用与计算力学各个领域的广泛主题，特别强调数学建模和数值模拟，并在相关情况下提供实验支持。我们的读者群体包括国际科学界的学者以及对这些学科感兴趣的工程师。我们考虑发表的原创研究论文涉及以下领域：固体力学、材料力学、热力学、生物力学与机械生物学、流体-结构相互作用、多体系统动力学、机电一体化、振动与波动、结构的可靠性与耐久性、结构损伤与断裂力学、异质介质与多尺度问题、结构力学以及力学中的实验方法。此列表并非详尽无遗，也不是固定不变的。

Applied and Computational Mechanics

Detached eddy simulation (DES), delayed DES (DDES) and improved DDES (IDDES) hybrid RANS-LES turbulence models based on the Menter's Shear Stress Transport (SST) model as well as the DES variant of the Kok's Turbulent/Non-Turbulent model (TNT), Extra-Large Eddy Simulation (X-LES), and its newly proposed delayed and improved delayed variants (DX-LES and IDX-LES) along with the base RANS methods are compared in this paper. The comparison is made on a flow around tandem cylinders, on which mainly hybrid methods based on the one-equation Spalart-Almaras model were previously tested. The proposed models show DDES and IDDES with a different approach from the SST-based two-equation methods, which potentially improves the results and, in the case of the TNT-based DDES variant, only the blending function is dependent of the distance from the wall.

Lukáš Hájek

Jan Karel

Matěj Klíma

David Trdlička

Comparison of new RANS-LES hybrid methods on a tandem cylinder problem using rough meshes

使用粗糙网格在串联圆柱体问题上比较新的RANS-LES混合方法

In the current paper, we investigate the effect of spin slip conditions for the Couette-Poiseuille flow of a couple stress fluid between two parallel plates. In the study, the motion of the fluid is considered to be steady, incompressible and unidirectional. At the interface between the fluid and the plates (both the upper and lower), we consider the non-zero tangential and couple stress spin slip relationships as boundary conditions. We present analytical expressions for the velocity profile, volume flow rate, vorticity, and couple stresses. This paper discusses the numerical influence of the spin slip parameter, velocity slip parameter, couple stress parameter, and pressure gradient on the velocity, vorticity, couple stresses, and volume flow rate. Our results show that the presence of the spin slip parameter reduces the velocity, couple stress and volume flow rate of the fluid, while it enhances the vorticity. The limiting cases for each problem align well with previously published results regarding the vanishing of couple stresses at the boundaries. This research helps both researchers and engineers in understanding how to control the conditions to achieve an efficient fluid flow, particularly in applications involving couple stress effects, such as microfluidics systems, lubrication technology, and polymeric suspensions.

Shekhar Nishad

Krishna Prasad Madasu

Effect of spin slip conditions on Couette-Poiseuille flow of couple stress fluid between parallel plates

自旋滑移条件对平行板间偶应力流体库埃特-泊肃叶流动的影响

The prime goal of the study is to investigate the relevance of torsional surface wave propagation in a thermally conducting heterogeneous (functionally graded) semi-infinite medium. The closed form of the dispersion equation for the propagation of torsional waves in heterogeneous elastic media has been established by assuming equations of motion in the temperature field with proper boundary conditions. One particular case where torsional vibration generates wave propagation in homogeneous materials has been addressed, and therefore, dispersion equation has been developed. The phase velocity and attenuation coefficient in both homogeneous and heterogeneous half-space have been computed to demonstrate the wave properties. In order to investigate the functionally graded parameter associated with the elastic medium, the effects of heat flow components related to thermodynamic forces, and the coupling coefficient related to the deformation and temperature fields, numerical calculations with graphical interpretation have been performed separately for phase velocity and attenuation coefficient.

Nisha Haldar

Nirakara Pradhan

Sapan Kumar Samal

Shalini Saha

Thermodynamic effects of torsional surface waves in heterogeneous and homogeneous elastic semi-infinite substratum

异质和均质弹性半无限基底中扭转表面波的热力学效应

In this study, the nonlinear free vibration of a nano-disk considering small scale effects has been investigated by using the nonlocal elasticity. To take into account the nonlinear geometric effects, the nonlinear model of von Karman strain has been used while the governing differential equation was extracted according to Hamilton principle. The Galerkin weighted residual method in conjunction with the variational iteration method (VIM) was introduced to solve the governing equations for simply supported and clamped edge boundary conditions. For further comparison, the nonlinear equation was solved using the fourth-order Runge-Kutta method. Very good agreements were observed between the results of both methods, while the former method made the solution much easier. Additionally, it was observed that the ratio of thickness to radius, h/R, plays an important role on the nonlinear frequencies. This effect appears to be minute if the local elasticity theory is adopted. However, results indicated that the nonlocal effect may be ignored provided h/R ratio is very small.

Mojtaba Shariati

Mohammad Shishesaz

Reza Mosalmani

Seyed Alireza Seyed Roknizadeh

Mohammad Hosseini

Nonlocal effect on the axisymmetric nonlinear vibrational response of nano-disks using variational iteration method

变分迭代法在纳米圆盘轴对称非线性振动响应中的非局部效应

In the present work, the effect of various discontinuities like voids, soft inclusions and hard inclusions of the mixed-mode stress intensity factor (MMSIF), crack growth and energy release rate (ERR) of an edge crack isotropic plate under different loading like tensile, shear, combine and exponential by various numerical examples is investigated. The basic formulation is based on the extended finite element method (XFEM) through the M interaction approach using the level set method. The effect of single and multi voids and inclusions with position variation on MMSIF and crack growth are also investigated. The presented results would be applicable to enhancing the better fracture resistance of cracked structures and various loading conditions.

Achchhe Lal

Manoj B. Vaghela

Kundan Mishra

Numerical Analysis of an Edge Crack Isotropic Plate with Void/Inclusions under Different Loading by Implementing XFEM

不同载荷下含边缘裂纹各向同性板及孔洞/夹杂的扩展有限元数值分析

Optimization is getting more and more important due to its application in real engineering problems. Recently, the vibrating particles system algorithm has been developed as an efficient method for mono-objective optimization. However, in multi- and many-objective design problems, the vibrating particles system method is unable to handle simultaneously the conflicting objectives. The second drawback of the vibrating particles system algorithm is the~variability of the obtained results at each independent test, due to its inability to balance exploitation and exploration capabilities. To address these issues, this paper proposes an enhanced vibrating particles system algorithm called the many-objective vibrating particles system algorithm. The proposed many-objective vibrating particles system algorithm uses the Pareto principle to store the non-dominated solutions of multiple conflicting functions. Moreover, the implementation of the particle position enhancement mechanism to boost this algorithm's exploitation and exploration capabilities is another distinctive aspect of the suggested method. A variety of high-dimensional test functions and engineering design problems are used to evaluate the efficiency of the many-objective vibrating particles system algorithm. The obtained results show that the proposed algorithm outperforms other popular methods in terms of convergence characteristics and global search ability.

Mohamed Nejlaoui

An improved vibrating particles system method for many-criteria engineering design applications

改进的多准则工程设计应用振动粒子系统方法

Quantifying the reliability indices of structures under earthquake loading is traditionally considered to be challenging, especially when the nonlinear structural behaviour needs to be considered. With the increasing popularity of high-performance computer clusters, it is feasible to use detailed numerical procedures to quantify seismic safety margins of steel moment resisting frame (SMRF) structures under various sources of uncertainties. Two seismic reliability methods are used to examine the interaction of uncertainty from ground motions and intensity. One is a numerical integration procedure for the traditional method. The other is the Monte Carlo simulation. These methods produce cumulative probability distribution curves that can retain the accuracy of results from nonlinear dynamic analysis. These methods are applied to two SMRF structures to investigate their probabilistic behaviour with their uncertainties from earthquake loads and seismic weights. The global reliability indices of the structures are found to be between 2.5 and 2.1 under the maximum considered earthquake (MCE). When an MCE occurs, the conditional reliability indices of the structures range between 1.4 and 1.0. The results indicate that both methods can be used to accurately quantify the reliability of SMRF structures. The results also show that some conditional probability distributions may not be well-represented by simple equations with their parameters calibrated from data-fitting techniques. The results also prove that the discussed methods and numerical procedures can be further used to accurately quantify probabilistic seismic behaviour of other structures toward the community resilience.

Publication Information	Publisher: University of West Bohemia，Publishing cycle: ，Journal Type: journal，Open Access Journals: Yes
Basic data	Year of publication: 2016，Proportion of original research papers: 0.00%，Self Citation Rate:N.A.， Gold OA Rate: 0.00%
Average review cycle	网友分享经验：14 Weeks

Applied and Computational Mechanics

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Comparison of new RANS-LES hybrid methods on a tandem cylinder problem using rough meshes

Effect of spin slip conditions on Couette-Poiseuille flow of couple stress fluid between parallel plates

Thermodynamic effects of torsional surface waves in heterogeneous and homogeneous elastic semi-infinite substratum

Nonlocal effect on the axisymmetric nonlinear vibrational response of nano-disks using variational iteration method

Numerical Analysis of an Edge Crack Isotropic Plate with Void/Inclusions under Different Loading by Implementing XFEM

Comparison of new RANS-LES hybrid methods on a tandem cylinder problem using rough meshes

Effect of spin slip conditions on Couette-Poiseuille flow of couple stress fluid between parallel plates

Thermodynamic effects of torsional surface waves in heterogeneous and homogeneous elastic semi-infinite substratum

An improved vibrating particles system method for many-criteria engineering design applications

Quantify seismic reliability of steel moment frame structures\\ with numerical procedures

ISSN	1802-680X, 2336-1182
h-index	8