Applied Mechanics Reviews最新文献_第10页

An Optimized Dynamic Tensile Impact Test for Characterizing the Behavior of Materials 表征材料性能的优化动态拉伸冲击试验

IF 14.3 1区工程技术

Applied Mechanics Reviews Pub Date : 2022-09-11 DOI: 10.3390/applmech3030063

O. Pantalé, L. Ming

引用次数: 1

On Computational Asymptotic Analysis of General Sensitive Shells of Revolution 一般旋转敏感壳的计算渐近分析

IF 14.3 1区工程技术

Applied Mechanics Reviews Pub Date : 2022-08-29 DOI: 10.3390/applmech3030062

H. Hakula

引用次数: 2

Towards Ab-Initio Simulations of Crystalline Defects at the Exascale Using Spectral Quadrature Density Functional Theory 基于谱正交密度泛函理论的百亿亿次晶体缺陷Ab-Initio模拟

IF 14.3 1区工程技术

Applied Mechanics Reviews Pub Date : 2022-08-24 DOI: 10.3390/applmech3030061

Swarnava Ghosh

{"title":"Towards Ab-Initio Simulations of Crystalline Defects at the Exascale Using Spectral Quadrature Density Functional Theory","authors":"Swarnava Ghosh","doi":"10.3390/applmech3030061","DOIUrl":"https://doi.org/10.3390/applmech3030061","url":null,"abstract":"Defects in crystalline solids play a crucial role in determining properties of materials at the nano, meso- and macroscales, such as the coalescence of vacancies at the nanoscale to form voids and prismatic dislocation loops or diffusion and segregation of solutes to nucleate precipitates, phase transitions in magnetic materials via disorder and doping. First principles Density Functional Theory (DFT) simulations can provide a detailed understanding of these phenomena. However, the number of atoms needed to correctly simulate these systems is often beyond the reach of many widely used DFT codes. The aim of this article is to discuss recent advances in first principles modeling of crystal defects using the spectral quadrature method. The spectral quadrature method is linear scaling with respect to the number of atoms, permits spatial coarse-graining, and is capable of simulating non-periodic systems embedded in a bulk environment, which allows the application of appropriate boundary conditions for simulations of crystalline defects. In this article, we discuss the state-of-the-art in ab-initio modeling of large metallic systems of the order of several thousand atoms that are suitable for utilizing exascale computing resourses.","PeriodicalId":8048,"journal":{"name":"Applied Mechanics Reviews","volume":"64 1","pages":""},"PeriodicalIF":14.3,"publicationDate":"2022-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72753842","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

Bending Stresses and Deformations in Prismatic Profiled Shafts with Noncircular Contours Based on Higher Hybrid Trochoids 基于高混合曲面的非圆轮廓棱柱形轴的弯曲应力和变形

IF 14.3 1区工程技术

Applied Mechanics Reviews Pub Date : 2022-08-23 DOI: 10.3390/applmech3030060

M. Ziaei

{"title":"Bending Stresses and Deformations in Prismatic Profiled Shafts with Noncircular Contours Based on Higher Hybrid Trochoids","authors":"M. Ziaei","doi":"10.3390/applmech3030060","DOIUrl":"https://doi.org/10.3390/applmech3030060","url":null,"abstract":"This paper presents an analytical method for determining the bending stresses and deformations in prismatic, noncircular profile shafts with trochoidal cross sections. The so-called higher trochoids can be used as form-fit shaft-hub connections. Hybrid (mixed) higher trochoids (M-profiles) were developed for the special application as a profile contour for the form-fit shaft and hub connections in an earlier work by the author. M-profiles combine the advantages of the two standardised polygonal and spline contours, which are used as shaft-hub connections for the transmission of high torques. In this study, the geometric and mechanical properties of the higher hybrid trochoids were investigated using complex functions to simplify the calculations. The pure bending stress and shaft deflection were determined for M-profiles using bending theory based on the theory of mathematical elasticity. The loading cases consisted of static and rotating bends. Analytical, numerical, and experimental results agreed well. The calculation formulas developed in this work enable reliable and low-cost dimensioning with regard to the stresses and elastic deformations of profile shafts subjected to bending loads.","PeriodicalId":8048,"journal":{"name":"Applied Mechanics Reviews","volume":"9 1","pages":""},"PeriodicalIF":14.3,"publicationDate":"2022-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76348016","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: 1

Vibrations Affecting Stability and Edge Control of Snowboards 振动对滑雪板稳定性和边缘控制的影响

IF 14.3 1区工程技术

Applied Mechanics Reviews Pub Date : 2022-08-17 DOI: 10.3390/applmech3030059

F. Fuss

{"title":"Vibrations Affecting Stability and Edge Control of Snowboards","authors":"F. Fuss","doi":"10.3390/applmech3030059","DOIUrl":"https://doi.org/10.3390/applmech3030059","url":null,"abstract":"Background: During a carving turn, vibrations are induced at the heel of the snowboard through edge friction when the heel slips sideways and subsequently travel through and along the board to the shovel, which vibrates and affects the edge control. The purpose of this study was to find a method for assessing the edge grip with a laser vibrometer. Method: Two boards, loaded and tilted at four different angles, were placed on a soft surface, with a shaker connected to the heel at the hindmost edge point. The shovel and particularly the frontmost edge point were scanned with a Polytec laser vibrometer. The frequency response functions of coherence, average shovel displacement, and displacement of the foremost edge point were recorded, and the latter was integrated for obtaining an edge mobility measure (EMM) to quantify the edge control. Results: Of the two boards compared, the shovel of board A was stiffer in the 1st and in the 3rd torsional mode, and the one of board B was stiffer in bending modes. The 2nd torsional mode was responsible for large edge vibrations and therefore for a diminished edge control. Shovel B had a smaller EMM at greater tilt angles, that is, less amplitude of the vibrations at the frontmost edge point, and therefore a better edge control. Shovel A, however, had a smaller EMM at smaller tilt angles. Conclusion: The method developed in this study provides a reliable test for assessment of edge control of a snowboard under standardized test conditions.","PeriodicalId":8048,"journal":{"name":"Applied Mechanics Reviews","volume":"50 1","pages":""},"PeriodicalIF":14.3,"publicationDate":"2022-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75820450","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: 1

Effects of a Torsion Spring Used in a Flexible Delta Tricycle 弹性三角三轮车用扭力弹簧的效果

IF 14.3 1区工程技术

Applied Mechanics Reviews Pub Date : 2022-08-09 DOI: 10.3390/applmech3030058

J. D’hondt, P. Slaets, E. Demeester, M. Juwet

引用次数: 0

Fatigue of Shape Memory Alloys with Emphasis On Additively-Manufactured NiTi Components 形状记忆合金的疲劳，重点是增材制造的NiTi部件

IF 14.3 1区工程技术

Applied Mechanics Reviews Pub Date : 2022-08-04 DOI: 10.1115/1.4055175

Adriano Cebrian Carcavilla, W. Zaki

引用次数: 4

Experimental and Numerical Investigation of a Multifunctional CFRP towards Heat Convection under Aircraft Icing Conditions 飞机结冰条件下多功能CFRP对热对流性能的实验与数值研究

IF 14.3 1区工程技术

Applied Mechanics Reviews Pub Date : 2022-08-03 DOI: 10.3390/applmech3030056

M. O. H. Schutzeichel, Thorben Strübing, O. Tamer, T. Kletschkowski, H. Monner, M. Sinapius

{"title":"Experimental and Numerical Investigation of a Multifunctional CFRP towards Heat Convection under Aircraft Icing Conditions","authors":"M. O. H. Schutzeichel, Thorben Strübing, O. Tamer, T. Kletschkowski, H. Monner, M. Sinapius","doi":"10.3390/applmech3030056","DOIUrl":"https://doi.org/10.3390/applmech3030056","url":null,"abstract":"A combined experimental and numerical approach for the analysis of convective heat transfer from a multifunctional flat plate specimen under aircraft icing conditions is presented. The experimental setup including a heat control and measurement system that is installed in a de-icing test bed. The ambient temperature (θa=[253,283]K), air velocity (va={0,15,30}ms), and angle of attack (α={10,30}∘) are varied, and their influence on heat transfer during local Joule heating is discussed. The numerical approach utilises the results to compute the convective heat transfer coefficients (HTC) based on Newton’s convective heat transfer condition. Results indicate that the numerical model represents the heat transfer behaviour with high accuracy. The HTC for free convection was found to hold h¯≈2.5Wm2K and h¯≈[10,40]Wm2K for forced convection conditions with minor scattering. The increase in HTC under forced convection conditions has a significant effect on the overall heat transfer behaviour, resulting in high temperature gradients within the material. The functional optimisation of multifunctional structures will benefit from including application related convection conditions, dealing with resulting temperature fields by structural design. It is expected that multifunctional structures for de-icing as well as for structural energy storage, morphing structures, or stiffness adaptive structures with similar material constituents will benefit from this recognition.","PeriodicalId":8048,"journal":{"name":"Applied Mechanics Reviews","volume":"98 1","pages":""},"PeriodicalIF":14.3,"publicationDate":"2022-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74768620","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

Stochastic Static Analysis of Planar Elastic Structures with Multiple Spatially Uncertain Material Parameters 具有多个空间不确定材料参数的平面弹性结构的随机静力分析

IF 14.3 1区工程技术

Applied Mechanics Reviews Pub Date : 2022-08-02 DOI: 10.3390/applmech3030055

H. Hakula

引用次数: 1

Discussion of “Ghaednia, H., Wang, X., Saha, S., Xu, Y., Sharma, A., & Jackson, R. L. (2017). A Review Of Elastic-Plastic Contact Mechanics. Applied Mechanics Reviews, 69(6).” 关于“Ghaednia, H.， Wang, X.， Saha, S.， Xu, Y.， Sharma, A.， & Jackson, R. L.(2017)”的讨论。弹塑性接触力学研究进展。应用力学评论，69(6)。

IF 14.3 1区工程技术

Applied Mechanics Reviews Pub Date : 2022-08-02 DOI: 10.1115/1.4055137

R. Jackson

引用次数: 4