Material Design & Processing Communications最新文献_第2页

Simulation of the Compression Testing of Additively Manufactured Lattice Structures Using Inputs from Microcomputed Tomography 利用微计算机断层扫描输入模拟快速成型晶格结构的压缩测试

Material Design & Processing Communications Pub Date : 2023-11-28 DOI: 10.1155/2023/8000727

Minsol Park, Martin Philip Venter, Anton Du Plessis

{"title":"Simulation of the Compression Testing of Additively Manufactured Lattice Structures Using Inputs from Microcomputed Tomography","authors":"Minsol Park, Martin Philip Venter, Anton Du Plessis","doi":"10.1155/2023/8000727","DOIUrl":"10.1155/2023/8000727","url":null,"abstract":"<div>\u0000 <p>Finite element (FE) modeling is a powerful tool for the virtual testing of components, especially for high-value manufacturing like additive manufacturing (AM). AM often involves lattice structures in parts, imparting unique mechanical properties. Numerical models allow for cost-effective virtual testing, but computational limitations hinder comprehensive investigations on lattice structures, and idealized models may not fully represent actual manufactured behavior. This study proposes a simplified numerical model for analyzing lattice structure compression behavior before failure, incorporating X-ray microcomputed tomography (CT) scan data. The model includes real manufacturing defects, such as geometrical inaccuracies, internal porosity, and surface roughness. It closely fits compression test results from samples with varied defects, with a maximum error of 17% for stiffness, 13% for yield stress, and 7% for peak stress. The model offers promise for developing manufacturing defect-incorporated lattice representative volume elements (RVEs) to design AM parts with lattice regions. Replacing complex lattice structures with solid-infilled RVEs in simulations reduces computational costs significantly. This approach allows efficient exploration of lattice AM components’ mechanical behavior, accounting for manufacturing defects and offering insights for design optimization and material selection.</p>\u0000 </div>","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2023 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2023/8000727","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139220216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental Investigations of Damage Identification for Aluminum Foam Sandwich Beams Using Two-Step Method 使用两步法识别铝泡沫夹层梁损伤的实验研究

Material Design & Processing Communications Pub Date : 2023-11-22 DOI: 10.1155/2023/6551830

Xinyu He, Dongsheng Ge, Yi An

{"title":"Experimental Investigations of Damage Identification for Aluminum Foam Sandwich Beams Using Two-Step Method","authors":"Xinyu He, Dongsheng Ge, Yi An","doi":"10.1155/2023/6551830","DOIUrl":"10.1155/2023/6551830","url":null,"abstract":"<div>\u0000 <p>In the experiment, strain gauges and dynamic signal acquisition instruments are used to collect and record data, and the stochastic subspace algorithm is used to extract the first three strain modal parameters of each case. The damage amount identified by the second natural frequency based on the modified Timoshenko beam theory is more in line with the actual situation. The damage depth of case 2 and case 4 is 2 mm, and the identified damage amount is 10% and 9%, respectively. The damage depth of case 3 and case 5 is 4 mm, and the identified damage amount is 16% and 23%, respectively. The damage location information of case 6 is well identified by using the normalized strain modal shape difference index and the enhanced strain modal shape difference index. Taking the strain response signal of case 6 as an example, it is proved that the stochastic subspace strain modal parameter identification algorithm has strong anti-interference ability under the action of 1.5 times, 4 times, and 9 times noise. In addition, the method is verified by theoretical calculation and numerical simulation, and the damage law has a high degree of coincidence with the test. The experimental results show that this method expands the theoretical basis of foam metal damage degree information identification and improves the accuracy of damage location information identification and the anti-interference of parameter identification.</p>\u0000 </div>","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2023 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2023/6551830","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139246827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Toughness Enhancement of PLA-Based Filaments for Material Extrusion 3D Printing 用于材料挤压3D打印的pla基长丝的韧性增强

Material Design & Processing Communications Pub Date : 2023-08-09 DOI: 10.1155/2023/2707510

Siriwan Pongsathit, Jutamas Kamaisoom, Atikarn Rungteerabandit, Pakorn Opaprakasit, Krit Jiamjiroch, Cattaleeya Pattamaprom

{"title":"Toughness Enhancement of PLA-Based Filaments for Material Extrusion 3D Printing","authors":"Siriwan Pongsathit, Jutamas Kamaisoom, Atikarn Rungteerabandit, Pakorn Opaprakasit, Krit Jiamjiroch, Cattaleeya Pattamaprom","doi":"10.1155/2023/2707510","DOIUrl":"10.1155/2023/2707510","url":null,"abstract":"<div>\u0000 <p>Poly(lactic acid) (PLA) is one of the most popular biodegradable thermoplastics in the market of 3D printing filaments used in the material extrusion (ME) technique. This is because it can be printed easily at low temperatures. However, its inherent brittleness limits its use in many applications. In this work, the toughness of PLA filament was improved by blending with various types of rubbers including natural rubber (NR), acrylic core–shell rubber (CSR), and thermoplastic polyurethane (TPU) in the amount of 15% by weight. PLA/TPU filament was found to have the smoothest surface with the best shape and dimension stability, while PLA/NR filament rendered the highest tensile toughness. In term of the effect of printing temperature, the highest printing temperature in this study (210°C) provided the highest smoothness with the best shape stability and dimension accuracy. Interestingly, the tensile toughness and elongation at break of 3D printed specimens were found to be higher than those of compression-molded specimens for all filament types. This could be explained by the ability of the 3D printing technique to produce specimens that aligned in the printing direction in a fiber-like pattern.</p>\u0000 </div>","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2023 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2023/2707510","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88716270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of the Effect of Tool Temperature on Microstructure, Hardness, and Wear Behaviour of Aluminium 6061-T6 Alloy Welded by the Friction Stir Welding Process 刀具温度对6061-T6铝合金搅拌摩擦焊组织、硬度及磨损性能影响的研究

Material Design & Processing Communications Pub Date : 2023-05-13 DOI: 10.1155/2023/1795150

Mothibeli Pita

{"title":"Investigation of the Effect of Tool Temperature on Microstructure, Hardness, and Wear Behaviour of Aluminium 6061-T6 Alloy Welded by the Friction Stir Welding Process","authors":"Mothibeli Pita","doi":"10.1155/2023/1795150","DOIUrl":"10.1155/2023/1795150","url":null,"abstract":"<div>\u0000 <p>The friction stir welding (FSW) tool is a critical component to the success of the welding process. The aim of the paper is to investigate the effect of tool temperature on the microstructure and mechanical properties of the aluminium alloy during the friction stir welding process. The welding experiment was conducted at a tool rotational speed of 550 rpm, and tool temperature was measured with the increment of a 60 mm distance. Three different tool temperatures were obtained, and samples were characterised by scanning electron microscopy (SEM). The ASTM E384 standard was followed when conducting the Vickers hardness test, and material wear behaviour was tested using the ASTM G99 tribology testing standard. The results show that the tool temperature increases with distance during the FSW process (40.5, 46, and 54°C). A high tool temperature produces the weld butt with high mechanical properties (87.5 HV). The wear rate is low at a high tool temperature (1.169<i>E</i> − 006 mm<sup>3</sup>/N/m).</p>\u0000 </div>","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2023 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2023/1795150","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79214818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Porous Titanium Scaffold: A New Design for Controlled Drug Delivery 多孔钛支架:一种新的药物控制递送设计

Material Design & Processing Communications Pub Date : 2023-04-05 DOI: 10.1155/2023/4664178

Sima Sadeghzade, Reza Amini Najafabadi, Mohammad Meysami, Amirhossein Meysami, Mohammad Khodaei, Taghi Isfahani

{"title":"Porous Titanium Scaffold: A New Design for Controlled Drug Delivery","authors":"Sima Sadeghzade, Reza Amini Najafabadi, Mohammad Meysami, Amirhossein Meysami, Mohammad Khodaei, Taghi Isfahani","doi":"10.1155/2023/4664178","DOIUrl":"10.1155/2023/4664178","url":null,"abstract":"<div>\u0000 <p>Gelatin crosslinking using conventional methods is usually associated with some toxic side effects. In this research, therefore, the vacuum heating method at 10 Pascal and 140°C under different times of 8, 16, and 32 h was used to cross-link strontium-loaded gelatin microparticles with varying degrees obtained by the oil/water mixing method on titanium scaffolds by the dip-coating method to avoid toxicity and also to control the strontium release rate to the surrounding tissue. The possible phases formed on the surface of the porous titanium scaffolds, the gelatin microparticle distribution, gelatin strontium loading, and strontium release were characterized using thin film X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy (SEM), and inductively coupled plasma-mass spectrometer (ICP-MS) machines, respectively. The results indicated that at 600°C, the rutile phase was formed on the surface of the heat-treated titanium scaffolds. Furthermore, strontium was successfully loaded in the spherical gelatin microparticles, and the strontium-loaded gelatin microparticles were distributed uniformly on the surface of the titanium scaffolds, while the rate of the <i>in vitro</i> strontium release decreased by increasing the time of the gelatin microparticle vacuum-heat crosslinking, whereas at the burst release step, the <i>in vitro</i> strontium release rates were around 5, 4.4, and 2.5 ppm/h, for the 8, 16, and 32 h vacuum-heat cross-linked gelatin microparticles, respectively.</p>\u0000 </div>","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2023 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2023/4664178","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78589491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Characterization of Refractory Alloys Produced by Laser Additive Manufacturing 激光增材制造耐火合金的表征

Material Design & Processing Communications Pub Date : 2022-11-24 DOI: 10.1155/2022/1928643

Andrew B. Kustas, Jonathan Pegues, Michael A. Melia, Shaun R. Whetten, Morgan Jones, Nicolas Argibay

引用次数: 0

Investigating the Effect of Cooling Media on Hardness, Toughness, Coefficient of Friction, and Wear Rate of Mild Steel Heat Treated at Different Temperatures 研究冷却介质对不同温度热处理的低碳钢硬度、韧性、摩擦系数和磨损率的影响

Material Design & Processing Communications Pub Date : 2022-09-27 DOI: 10.1155/2022/3564875

M. Pita, L. Lebea

引用次数: 0

Design of Mechanical Properties of Poly(butylene-adipate-terephthalate) Reinforced with Zein-TiO2 Complex 玉米蛋白- tio2配合物增强聚己二酸丁酯的力学性能设计

Material Design & Processing Communications Pub Date : 2022-07-20 DOI: 10.1155/2022/6496985

Elena Togliatti, Maria Grimaldi, Olimpia Pitirollo, Antonella Cavazza, Diego Pugliese, Daniel Milanese, Corrado Sciancalepore

{"title":"Design of Mechanical Properties of Poly(butylene-adipate-terephthalate) Reinforced with Zein-TiO2 Complex","authors":"Elena Togliatti, Maria Grimaldi, Olimpia Pitirollo, Antonella Cavazza, Diego Pugliese, Daniel Milanese, Corrado Sciancalepore","doi":"10.1155/2022/6496985","DOIUrl":"10.1155/2022/6496985","url":null,"abstract":"<div>\u0000 <p>Mechanical properties of polymer biocomposites are influenced by the interaction between the matrix and the filler surface. In this work, composites based on poly(butylene-adipate-terephthalate) (PBAT) filled with micrometric particles of zein-TiO<sub>2</sub> complex (ZTC) were realized via solvent casting technique at different concentrations, equal to 0, 5, 10, and 20 wt%. After pelletization, the resulting materials were injection molded into standard specimens, employed for the uniaxial tensile test (UTT) characterization. From the stress-strain curves, Young’s modulus (<i>E</i>), yield stress (<i>σ</i><sub><i>y</i></sub>), stress at break (<i>σ</i><sub><i>B</i></sub>), elongation at break (<i>ε</i><sub><i>B</i></sub>), and toughness (<i>T</i>) were collected. The addition of the ZTC proved to show a reinforcing effect on the polymeric matrix, with an increase in both <i>E</i> and <i>σ</i><sub><i>y</i></sub>. Modelling of the mechanical properties was performed by applying Kerner’s and Pukánszky’s equations. Kerner’s model, applied on experimental <i>E</i> values, returned a very good correspondence between collected and theoretical values. From the application of Pukánszky’s model to <i>σ</i><sub><i>y</i></sub>, the obtained <i>B</i> value showed a good interfacial interaction between the matrix and the filler. Due to the enhanced stiffness of the composites, a reduction in the true stress at break (<i>σ</i><sub><i>T</i>,<i>B</i></sub>) was observed. The modified Pukánszky’s model gave a <i>B</i> value lower than the one obtained for the yield, but still in the range of acceptable values for microcomposites.</p>\u0000 </div>","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2022 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2022/6496985","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77962191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigating Static Deflection of Non-Prismatic Axially Functionally Graded Beam 非棱镜轴向功能梯度梁的静挠度研究

Material Design & Processing Communications Pub Date : 2022-07-18 DOI: 10.1155/2022/7436024

Walaa Mohammed Hashim, Luay S. Alansari, Mohanad Aljanabi, Hassan Mansour Raheem

{"title":"Investigating Static Deflection of Non-Prismatic Axially Functionally Graded Beam","authors":"Walaa Mohammed Hashim, Luay S. Alansari, Mohanad Aljanabi, Hassan Mansour Raheem","doi":"10.1155/2022/7436024","DOIUrl":"10.1155/2022/7436024","url":null,"abstract":"<div>\u0000 <p>In this study, the static deflection of non-prismatic axial function graded tapered beam (A-FGB) under distribution load has been analyzed using ANSYS workbench (17.2). According to a power-law model, the elastic modulus of the beam varies continuously in the axial direction of the beam. Also, the beam’s geometry, i.e., width, thickness, or both width and thickness of the beam, varies linearly in the axial direction with different values of non-uniformity parameter (1, 0.5,0, −0.5, and −0.75). The effects of martial distribution, i.e., power-law index, and non-uniformity parameter on the static deflection for A-FGB with different boundary conditions, in such free-clamped, clamped-free, and simply-supported, are studied. This research deals with functionally graded materials FGMs in more than one aspect in terms of using different boundary conditions; in addition, it studies the response of the non-prismatic beam non-uniformity parameter (<i>α</i>); therefore, this research studies comprehensively the deflection of the beam. The results show that the increase in power-law index causes decreasing in dimensionless deflection and its rate of change depends on the supporting types of the beam and non-uniformity parameters. The variation in both width and thickness for a free-clamped axial function–graded beam gives a significant decrease in dimensionless deflection at decreasing in non-uniformity parameter, whereas the variation in thickness for clamped-free axial function graded beam gives a significant decrease in dimensionless deflection at decreasing of non-uniformity parameter.</p>\u0000 </div>","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2022 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2022/7436024","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80820439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Survey of Machine Learning in Friction Stir Welding, including Unresolved Issues and Future Research Directions

Material Design & Processing Communications Pub Date : 2022-06-08 DOI: 10.1155/2022/2568347

Utkarsh Chadha, Senthil Kumaran Selvaraj, Neha Gunreddy, S. Sanjay Babu, Swapnil Mishra, Deepesh Padala, M. Shashank, Rhea Mary Mathew, S. Ram Kishore, Shraddhanjali Panigrahi, R. Nagalakshmi, R. Lokesh Kumar, Addisalem Adefris

{"title":"A Survey of Machine Learning in Friction Stir Welding, including Unresolved Issues and Future Research Directions","authors":"Utkarsh Chadha, Senthil Kumaran Selvaraj, Neha Gunreddy, S. Sanjay Babu, Swapnil Mishra, Deepesh Padala, M. Shashank, Rhea Mary Mathew, S. Ram Kishore, Shraddhanjali Panigrahi, R. Nagalakshmi, R. Lokesh Kumar, Addisalem Adefris","doi":"10.1155/2022/2568347","DOIUrl":"https://doi.org/10.1155/2022/2568347","url":null,"abstract":"<div>\u0000 <p>Friction stir welding is a method used to weld together materials considered challenging by fusion welding. FSW is primarily a solid phase method that has been proven efficient due to its ability to manufacture low-cost, low-distortion welds. The quality of weld and stresses can be determined by calculating the amount of heat transferred. Recently, many researchers have developed algorithms to optimize manufacturing techniques. These machine learning techniques have been applied to FSW, which allows it to predict the defect before its occurrence. ML methods such as the adaptive neurofuzzy interference system, regression model, support vector machine, and artificial neural networks were studied to predict the error percentage for the friction stir welding technique. This article examines machine learning applications in FSW by utilizing an artificial neural network (ANN) to control fracture failure and a convolutional neural network (CNN) to detect faults. The ultimate tensile strength is predicted using a regression and classification model, a decision tree model, a support vector machine for defecting classification, and Gaussian process regression (UTS). Machine learning implementation mainly promotes uniformity in the process and precision and maximally averts human error and involvement.</p>\u0000 </div>","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2022 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2022/2568347","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143249045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0