Journal of Multiscale Modelling最新文献_第4页

Cyclic Loading on Damaged AA7075-T6 Specimens: Numerical Modelling and Experimental Testing 损伤AA7075-T6试件的循环加载:数值模拟与试验测试

IF 1.5

Journal of Multiscale Modelling Pub Date : 2021-12-13 DOI: 10.1142/s1756973721440054

E. V. Arcieri, S. Baragetti

引用次数: 1

Crack Deflection Under Mixed-Mode Loading Conditions in Fine-Grained Composites Based on Water Glass-Activated Slag 水玻璃活性渣基细晶复合材料混合加载条件下裂纹挠度研究

IF 1.5

Journal of Multiscale Modelling Pub Date : 2021-12-13 DOI: 10.1142/s1756973721440042

L. Malíková, H. Šimonová, B. Kucharczyková

引用次数: 0

An Integrated Multiscale Simulation Routine to Predict Mechanical Performance from Manufacturing Effects 从制造效应预测机械性能的集成多尺度仿真程序

IF 1.5

Journal of Multiscale Modelling Pub Date : 2021-10-29 DOI: 10.1142/s1756973721430010

M. Rouhi, V. Tan, T. Tay

{"title":"An Integrated Multiscale Simulation Routine to Predict Mechanical Performance from Manufacturing Effects","authors":"M. Rouhi, V. Tan, T. Tay","doi":"10.1142/s1756973721430010","DOIUrl":"https://doi.org/10.1142/s1756973721430010","url":null,"abstract":"Structural performance of unidirectional composites (UD) is directly dependent on its ingredient’s properties, ply configurations and the manufacturing effects. Prediction of mechanical properties using multiscale manufacturing simulation and micromechanical models is the focus of this study. Particular problem of coupled dual-scale deformation-flow process such as the one arising in RTM, Vacuum-Assisted Resin Infusion (VARI) and Vacuum Bag Only (VBO) prepregs is considered. A finite element formulation of porous media theory framework is employed to predict the element-wise local volume fractions and the deformation of a preform in a press forming process. This formulation considers coupling effects between macro-scale preform processes and mesoscale ply processes as well as coupling effects between the solid and fluid phases. A number of different micromechanical models are assessed and the most suitable one is used to calculate mechanical properties from volume fractions. Structural performance of the “deformed” geometry is then evaluated in mechanical analysis. An integrated platform is designed to cover the whole chain of analysis and perform the properties’ calculation and transfer them between the modules in a smooth mapping procedure. The paper is concluded with a numerical example, where a compression-relaxation test of a planar fluid filled prepreg at globally un-drained condition is considered followed by a mechanical loading analysis. The development is user friendly and interactive and is established to enable design and optimization of composites.","PeriodicalId":43242,"journal":{"name":"Journal of Multiscale Modelling","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43692166","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: 1

Investigation of Rotating Eddy Current Testing Simulation Using Simplified Model 基于简化模型的旋转涡流检测仿真研究

IF 1.5

Journal of Multiscale Modelling Pub Date : 2021-10-29 DOI: 10.1142/s1756973721420026

Chenkai Yang, Jiuhao Ge, Baowang Hu

引用次数: 2

Micromechanical Modeling of Unidirectional CFRP Composites with Proportional Stressing 单向比例应力CFRP复合材料细观力学建模

IF 1.5

Journal of Multiscale Modelling Pub Date : 2021-10-25 DOI: 10.1142/s1756973721430022

Zhoucheng Su, Dan Wang, T. Guo, N. Sridhar

引用次数: 0

Multi-Timescale Simulations of Temperature Elevation for Ultrasonic Welding of CFRP with Energy Director 带能量导向器的CFRP超声波焊接温度场的多时间尺度模拟

IF 1.5

Journal of Multiscale Modelling Pub Date : 2021-10-25 DOI: 10.1142/s1756973721430034

Maruri Takamura, Kotaro Uehara, J. Koyanagi, Shinichi Takeda

{"title":"Multi-Timescale Simulations of Temperature Elevation for Ultrasonic Welding of CFRP with Energy Director","authors":"Maruri Takamura, Kotaro Uehara, J. Koyanagi, Shinichi Takeda","doi":"10.1142/s1756973721430034","DOIUrl":"https://doi.org/10.1142/s1756973721430034","url":null,"abstract":"Ultrasonic welding is an energy-efficient technology that enables quick bonding of thermoplastic composite materials under normal temperature and pressure conditions. Here, numerical multi-timescale simulation is proposed to understand the welding principle, using numerical simulations of ultrasonic welding. The simulation results are validated by comparing with temperature measurements in welding tests. In the multi-timescale simulations, microsecond-scale simulations are performed first. The ultrasonic wave is modeled as a vibration load, and the energy dissipation per vibration at 25, 75, 125, 175, 225, and 275∘C is analyzed. Then, the time derivative of the temperature rise is obtained. In the normal scale simulations, the ultrasonic wave and holding pressure are replaced by a constant load, and the entire process of ultrasonic welding is simulated. The slope of the temperature rise is fitted to the time derivative of the temperature rise obtained from the microsecond-scale simulations, using the material constant as a parameter. Explicit multi-timescale simulations were performed to investigate the relationship between stress concentration and temperature rise due to ED geometry. The result reveals similar temperature behavior to the experimental one, indicating the validity of the multi-timescale method. It suggests that viscoelastic energy dissipation and stress concentration are responsible for the temperature spike.","PeriodicalId":43242,"journal":{"name":"Journal of Multiscale Modelling","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46043481","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: 4

Investigation on Thrust and Torque Generation During Drilling of Hybrid Laminates Composite with Different Stacking Sequences Using Multiobjective Optimization Module 用多目标优化模块研究不同堆叠顺序的复合材料钻孔过程中产生的推力和扭矩

IF 1.5

Journal of Multiscale Modelling Pub Date : 2021-10-09 DOI: 10.1142/s1756973721500098

A. Dubey, J. Kumar, S. Kesarwani, R. Verma

{"title":"Investigation on Thrust and Torque Generation During Drilling of Hybrid Laminates Composite with Different Stacking Sequences Using Multiobjective Optimization Module","authors":"A. Dubey, J. Kumar, S. Kesarwani, R. Verma","doi":"10.1142/s1756973721500098","DOIUrl":"https://doi.org/10.1142/s1756973721500098","url":null,"abstract":"This paper highlights the reinforcement of two different fibers in the manufacturing of hybrid laminate composites. The feasibility of glass and carbon fiber-based hybrid composites is proposed for various high performances due to their versatile mechanical properties. However, anisotropic and non-homogeneity nature creates several machining challenges for manufacturers. It can be regulated through the selection of proper cutting conditions during the machining test. The effect of process constraints like spindle speed (rpm), feed rate (mm/min), and stacking sequences ([Formula: see text] was evaluated for the optimum value of thrust force and Torque during the drilling test. The cost-effective method of hand layup has been used to fabricate the composites. Four different hybrid composites were developed using different layers of carbon fiber and glass fiber layers. The outcomes of variables on machining performances were analyzed by variation of feed rate and speed to acquire the precise holes in the different configurations. The application potential of the proposed composites is evaluated through the machining (drilling) efficiency. The optimal condition for the drilling procedure was investigated using the multiobjective optimization-Grey relation analysis (MOO-GRA) approach. The findings of the confirmatory test show the feasibility of the MOO-GRA module in a machining environment for online and offline quality control.","PeriodicalId":43242,"journal":{"name":"Journal of Multiscale Modelling","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48728030","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

Finite Element Analysis and Life Prediction of Pre-stressed Composed Dies in Cold Extrusion Process 预应力组合模冷挤压过程的有限元分析与寿命预测

IF 1.5

Journal of Multiscale Modelling Pub Date : 2021-09-08 DOI: 10.1142/s1756973721420014

Zhen Zhang, Feng Yang, Xiawei Shao, J. Gu, G. Zha, Haoyun Tu, Bin Xie

引用次数: 0

ANFIS-based Models for Coating Quality Prediction for Thin-Film Deposition Processes 基于anfiss的薄膜沉积过程涂层质量预测模型

IF 1.5

Journal of Multiscale Modelling Pub Date : 2021-09-01 DOI: 10.1142/s1756973721500074

Partha Protim Das, Soham Das, Premchand Kumar Mahto, Dhruva Kumar, Manish Kumar Roy

{"title":"ANFIS-based Models for Coating Quality Prediction for Thin-Film Deposition Processes","authors":"Partha Protim Das, Soham Das, Premchand Kumar Mahto, Dhruva Kumar, Manish Kumar Roy","doi":"10.1142/s1756973721500074","DOIUrl":"https://doi.org/10.1142/s1756973721500074","url":null,"abstract":"Thin-film deposition processes have gained much popularity due to their unique capability to enhance the physical and chemical properties of various materials. Identification of the best parametric combination for a deposition process to achieve desired coating quality is often considered to be challenging due to the involvement of a large number of input process parameters and conflicting responses. This study discusses the development of adaptive neuro-fuzzy inference system-based models for the prediction of quality measures of two thin-film deposition processes, i.e., SiCN thin-film coating using thermal chemical vapor deposition (CVD) process and Ni–Cr alloy thin-film coating using direct current magnetron sputtering process. The predicted response values obtained from the developed models are validated and compared based on actual experimental results which exhibit a very close match between both the values. The corresponding surface plots obtained from the developed models illustrate the effect of each process parameter on the considered responses. These plots will help the operator in selecting the best parametric mix to achieve enhanced coating quality. Also, analysis of variance results identifies the importance of each process parameter in the determination of response values. The proposed approach can be applied to various deposition processes for modeling and prediction of observed response values. It will also assist as an operator in selecting the best parametric mix for achieving desired response values.","PeriodicalId":43242,"journal":{"name":"Journal of Multiscale Modelling","volume":"1 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64017364","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: 1

Homogenization and Correctors for Stochastic Hyperbolic Equations in Domains with Periodically Distributed Holes 周期分布孔域上随机双曲型方程的均匀化与校正

IF 1.5

Journal of Multiscale Modelling Pub Date : 2021-09-01 DOI: 10.1142/s1756973721500086

Mogtaba Mohammed, W. Khan

引用次数: 0