Applied Mechanics最新文献_第2页

Parametric Numerical Study and Multi-Objective Optimization of Composite Curing through Infrared Radiation 通过红外辐射固化复合材料的参数数值研究和多目标优化

Applied Mechanics Pub Date : 2024-03-20 DOI: 10.3390/applmech5010013

P. Gkertzos, A. Kotzakolios, Ioannis Katsidimas, Vassilis Kostopoulos

{"title":"Parametric Numerical Study and Multi-Objective Optimization of Composite Curing through Infrared Radiation","authors":"P. Gkertzos, A. Kotzakolios, Ioannis Katsidimas, Vassilis Kostopoulos","doi":"10.3390/applmech5010013","DOIUrl":"https://doi.org/10.3390/applmech5010013","url":null,"abstract":"Composite curing through infrared radiation (IR) has become a popular autoclave alternative due to lower energy costs and short curing cycles. As such, understanding and measuring the effect of all parameters involved in the process can aid in selecting the proper constituents as well as curing cycles to produce parts with a high degree of cure and low curing time. In this work, a numerical model that takes inputs such as part geometry, material properties, curing-related properties and applied curing cycle is created. Its outputs include the degree of cure, maximum curing temperature and total curing time. A genetic algorithm and a design of experiments (DOE) sequence cover the range of each input variable and multiple designs are evaluated. Correlations are examined and factor analysis on each output is performed, indicating that the most important inputs are activation energy, specimen precuring, applied curing temperature and curing duration, while all the others can be considered constant. Finally, response surfaces are created in order to effectively map and provide estimations of the design space, resulting in a curing cycle optimizer given certain restrictions over the input parameters.","PeriodicalId":503399,"journal":{"name":"Applied Mechanics","volume":"113 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140224801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Data-Driven Constitutive Model for 3D Lattice-Structured Material Utilising an Artificial Neural Network 利用人工神经网络的三维晶格结构材料数据驱动构造模型

Applied Mechanics Pub Date : 2024-03-20 DOI: 10.3390/applmech5010014

Arif Hussain, A. Sakhaei, Mahmood Shafiee

{"title":"A Data-Driven Constitutive Model for 3D Lattice-Structured Material Utilising an Artificial Neural Network","authors":"Arif Hussain, A. Sakhaei, Mahmood Shafiee","doi":"10.3390/applmech5010014","DOIUrl":"https://doi.org/10.3390/applmech5010014","url":null,"abstract":"A new data-driven continuum model based on an artificial neural network is developed in this study for a new three-dimensional lattice-structured material design. The model has the capability to capture and predict the nonlinear elastic behaviour of the specific lattice-structured material in the three-dimensional continuum description after being trained through the appropriate dataset. The essential data as the input ingredients of the data-driven model are provided through a hybrid method including experimental and unit-cell level finite element simulations under comprehensive loading scenarios including uniaxial, biaxial, volumetric, and pure shear loading. Furthermore, the lattice-structured samples are also fabricated using SLA additive manufacturing technology and the experimental measurements are performed and used for validation of the model. This then illustrates that the current model/methodology is a robust and powerful numerical tool to conduct the homogenization in complex simulation cases and could be used to accelerate the analysis and optimization during the design process of new lattice-structured materials. The model could also easily be used for other engineered materials by updating the dataset and re-training the ANN model with new data.","PeriodicalId":503399,"journal":{"name":"Applied Mechanics","volume":"7 18","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140227539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Time–Frequency Approach for Cutting Tool Power Signal Separation in Face Milling Operations 面铣操作中切削刀具功率信号分离的时频方法

Applied Mechanics Pub Date : 2024-03-18 DOI: 10.3390/applmech5010012

Eduardo Rubio, J. Jáuregui-Correa

引用次数: 0

Correction: Tamadon et al. Flow-Based Anatomy of Bobbin Friction-Stirred Weld; AA6082-T6 Aluminium Plate and Analogue Plasticine Model. Appl. Mech. 2020, 1, 3–19 更正：Tamadon 等人，《基于流动的梭形摩擦搅拌焊缝分析；AA6082-T6 铝板和模拟塑性模型》。Appl.2020, 1, 3-19

Applied Mechanics Pub Date : 2024-03-05 DOI: 10.3390/applmech5010010

A. Tamadon, Dirk J. Pons, D. Clucas

引用次数: 0

Comparative Studies between Frequency Domain Analysis and Time Domain Analysis on Free-Field One-Dimensional Shear Wave Propagation 自由场一维剪切波传播的频域分析与时域分析比较研究

Applied Mechanics Pub Date : 2024-02-29 DOI: 10.3390/applmech5010009

Sun-Hoon Kim, Kwang-Jin Kim

引用次数: 0

Electromagnetic–Computational Fluid Dynamics Couplings in Tungsten Inert Gas Welding Processes—Development of a New Linearization Procedure for the Joule Production Term 钨极惰性气体焊接过程中的电磁-计算流体动力学耦合--焦耳产生项线性化新程序的开发

Applied Mechanics Pub Date : 2024-02-28 DOI: 10.3390/applmech5010008

Thierry Tchoumi, François Peyraut, Rodolphe Bolot

引用次数: 0

Finite Element Modeling and Experimental Validation of AA 5052-H34 Machining: A Comprehensive Study on Chip Morphology and Temperature Analysis AA 5052-H34 加工的有限元建模和实验验证：切屑形态和温度分析综合研究

Applied Mechanics Pub Date : 2024-02-25 DOI: 10.3390/applmech5010007

Abbas Farhan Jawad Al-Khafaji, B. Davoodi, S. Niknam

{"title":"Finite Element Modeling and Experimental Validation of AA 5052-H34 Machining: A Comprehensive Study on Chip Morphology and Temperature Analysis","authors":"Abbas Farhan Jawad Al-Khafaji, B. Davoodi, S. Niknam","doi":"10.3390/applmech5010007","DOIUrl":"https://doi.org/10.3390/applmech5010007","url":null,"abstract":"An understanding of the dynamic behavior of materials plays a crucial role in machining improvement. According to the literature on this issue, one of the alloys whose dynamic behavior has been investigated less is AA 5052-H34, despite its numerous industrial applications. Using finite element (FE) modeling greatly reduces machining research costs. This research delved into the dynamic behavior modeling of AA 5052-H34 during dry-turning FE simulation. The dynamic behavior of AA 5052-H34 was achieved using the Johnson–Cook (J-C) constitutive equation, which was calculated using the uniaxial tensile and Split-Hopkinson pressure bar (SHPB) tests. To confirm the accuracy of the material model, these SHPB tests were then simulated in Abaqus. The J-C constitutive equation, paired with a J-C damage criterion, was employed in a chip formation and cutting temperature simulation. It was found that the feed rate significantly influences the dynamic behavior of AA 5052-H34. The thickness and morphology of the chip were investigated. The experimental and numerical chip thicknesses showed a direct relationship with the feed rate. The simulation temperature was also analyzed, and, as expected, it showed an upward trend with increasing cutting speed and feed rate. Then, the accuracy of the proposed FE simulation was confirmed by the agreement of the experimental and simulation results.","PeriodicalId":503399,"journal":{"name":"Applied Mechanics","volume":"5 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140433399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Simplified Model for the Study of Film-Boiling Droplet Motion on Microscale Ratchets 研究微尺度棘轮上膜卷液滴运动的简化模型

Applied Mechanics Pub Date : 2024-01-30 DOI: 10.3390/applmech5010006

Sheldon Wang, J. T. Ok, Sunggook Park, Mahmoud Elsharafi, Yu Guo

引用次数: 0

The Influence of Reverse Yielding on the Plastic Conditioning of Interference Fits in Power Transmission Engineering 反向屈服对输电工程中干扰服塑性调理的影响

Applied Mechanics Pub Date : 2024-01-25 DOI: 10.3390/applmech5010005

Mario Schierz, Alexander Hasse

{"title":"The Influence of Reverse Yielding on the Plastic Conditioning of Interference Fits in Power Transmission Engineering","authors":"Mario Schierz, Alexander Hasse","doi":"10.3390/applmech5010005","DOIUrl":"https://doi.org/10.3390/applmech5010005","url":null,"abstract":"Interference fits are very common shaft–hub connections due to their low manufacturing costs and excellent technical properties. The Plastic Conditioning of this machine element is a new and not very well-known method. During the development of this method, it was discovered that Reverse Yielding occurs in certain applications and has a negative impact on the result. This paper examines the effects of Reverse Yielding on the technology of Plastic Conditioning of interference fits in Power Transmission Engineering. Based on the Shear Stress Hypothesis (SH), the Plane Stress State (PSS), and the ideal plastic behavior of materials, established stress–mechanical relationships are used to find the influencing parameters of Reverse Yielding on the technology of Plastic Conditioning and their limits. As a result, a new computational concept is developed that allows the user to maximize Plastic Conditioning while avoiding Reverse Yielding. Analytical calculation suggestions and diagrams for practical application are provided. Furthermore, the deviations in the obtained results, taking into account other material models such as the Von Mises Yield Criterion (VMYC) and material hardening, as well as the Bauschinger effect, are examined in comparison with our own numerical results from the development of Plastic Conditioning, and the resulting need for further research is defined. In addition, the method of Plastic Conditioning of interference fits is introduced and its basic principles are briefly explained.","PeriodicalId":503399,"journal":{"name":"Applied Mechanics","volume":"3 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139595875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Continuous Feed Grinding Milling Process of Soda-Lime Glass Using Smoothed-Particle Hydrodynamics 利用平滑粒子流体力学对钠钙玻璃进行连续进料研磨加工

Applied Mechanics Pub Date : 2024-01-23 DOI: 10.3390/applmech5010004

Joshua Alamo, Jameson Pitcheralle, C. Merrett, Michael C. F. Bazzocchi, Marcias Martinez

{"title":"Continuous Feed Grinding Milling Process of Soda-Lime Glass Using Smoothed-Particle Hydrodynamics","authors":"Joshua Alamo, Jameson Pitcheralle, C. Merrett, Michael C. F. Bazzocchi, Marcias Martinez","doi":"10.3390/applmech5010004","DOIUrl":"https://doi.org/10.3390/applmech5010004","url":null,"abstract":"A smoothed-particle hydrodynamics (SPH) modeling technique was applied in conjunction with the Johnson–Holmquist (JH-2) ceramic material constitutive model to replicate the fracture of soda-lime glass in a milling manufacturing process. Four-point bending tests were conducted to validate the soda-lime glass bulk material properties prior to its implementation in ABAQUS CAE™ Explicit (Version 2017). The JH-2 material constitutive model replicated the fracture load and time to fracture for the four-point bending load cases as per ASTM C158. This study showed how SPH in combination with a validated JH-2 material model in a milling process simulation was able to replicate the output size distribution at 5000 and 6500 revolutions per minute (RPM). For operations at 3000 RPM or lower, it was shown that it is necessary to include additional effects in the model, such as fluid–structure interactions, to improve the correlation with the experimental data. The SPH model was validated through an experimental campaign using high-speed cameras and a particle Camsizer. The experimental results clearly indicate a direct relation between the mill’s RPM and the output particle size distribution.","PeriodicalId":503399,"journal":{"name":"Applied Mechanics","volume":"4 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139603131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0