Engineering Solid Mechanics最新文献_第3页

Surface morphological characterization of rf-magnetron sputtering developed inconel coated titanium 磁控溅射制备铬镍铁合金涂层钛的表面形貌表征

Engineering Solid Mechanics Pub Date : 2023-01-01 DOI: 10.5267/j.esm.2023.7.005

K. Babaremu, T. Jen, O. Oladijo, E. Akinlabi

{"title":"Surface morphological characterization of rf-magnetron sputtering developed inconel coated titanium","authors":"K. Babaremu, T. Jen, O. Oladijo, E. Akinlabi","doi":"10.5267/j.esm.2023.7.005","DOIUrl":"https://doi.org/10.5267/j.esm.2023.7.005","url":null,"abstract":"The interconnected usefulness of titanium grade 5 is amplified by the improved mechanical ability and sustainable applications in various industries like the aerospace, medical industry and many more. Despite the profound properties of Ti6Al4V, it is worthy of intellectual study to investigate the possible performance improvement of the material for better operational application. This study adopted the use of RF magnetron sputtering to deposit the target on the substrate material under varying temperatures and deposition power. A total of four samples and control were analyzed for a surface morphological examination and post-sputtering chemical compositional analysis via SEM (scanning electron microscope) and EDX (energy dispersive x-ray analysis). Further investigation on the samples' crystallites was done using XRD (X-ray diffractometer). The SEM images showed low agglomeration and most of the samples were void of pores, cleft and crevices, which implied homogeneous distribution of the target (Inconel thin film) on the titanium substrate. The EDX of the Inconel coated titanium samples revealed elements such as Ti, Si and C, which are beneficial to the properties of the materials. The XRD profiles of the Inconel coated titanium samples disclosed intensities of high peaks, which indicated stability, chemical and microstructural homogeneity of the thin film.","PeriodicalId":37952,"journal":{"name":"Engineering Solid Mechanics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70762581","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

The polymer nanocomposite characteristics on various mixtures and mixing times in simple mixing method 用简单的混合方法研究了聚合物纳米复合材料在不同混合物和混合次数下的特性

Engineering Solid Mechanics Pub Date : 2023-01-01 DOI: 10.5267/j.esm.2022.12.001

Muzakir Wirayudha, S. Saloma, A. Saggaff, Arie Putra Usman, M. Tahir, N. Khalid

{"title":"The polymer nanocomposite characteristics on various mixtures and mixing times in simple mixing method","authors":"Muzakir Wirayudha, S. Saloma, A. Saggaff, Arie Putra Usman, M. Tahir, N. Khalid","doi":"10.5267/j.esm.2022.12.001","DOIUrl":"https://doi.org/10.5267/j.esm.2022.12.001","url":null,"abstract":"Science and technological developments in the material field have been currently dedicated to a super strong material potential based on nanotechnology. The super strong material can be created from the mixture of epoxy-resin polymer and SiO2 (silicon dioxide) nanoparticles. Polymers exist as a nanoparticle adhesive due to nano-SiO2, which possesses a high amorphic level, resulting in a stronger, more flexible, and stiffer combination than the current super strong material. The advantages of nanocomposite polymer using epoxy- resin and nano-SiO2 produce strong and light products with an easier production process, utilizing local materials that can improve the following material quality. This study used four material variations, namely P30, P35, P40, and P45, combined with nanoparticles at 0%, 1%, 2%, 3%, and 4%. Based on the results, the highest compressive strength level was found on the PNK 40 EH2:1N1 mixture at 53.18 MPa with 1627 kg/m3 weight density. From the X-Ray Diffraction (XRD) test results, the following mixture had the lowest amorphic phase, while Fourier Transform Infra-Red (FTIR) test results showed that the following mixture absorbed more hydrogen elements, and Scanning Electron Microscope (SEM) observation on the following material mixture had more organized particle distribution.","PeriodicalId":37952,"journal":{"name":"Engineering Solid Mechanics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70760856","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

Life cycle of ceramic waste materials from the perspective of revenue and environmental management 从收益和环境管理的角度看陶瓷废料的生命周期

Engineering Solid Mechanics Pub Date : 2023-01-01 DOI: 10.5267/j.esm.2022.8.003

I. Normal, M. Setini

{"title":"Life cycle of ceramic waste materials from the perspective of revenue and environmental management","authors":"I. Normal, M. Setini","doi":"10.5267/j.esm.2022.8.003","DOIUrl":"https://doi.org/10.5267/j.esm.2022.8.003","url":null,"abstract":"The production of ceramic creates scrap material that is often wasted. The aims of this study are to know the influence of size and material on scrap material and the role of accounting in managing the environment. The results show that product size and material used together have an effect on scrap material. Partial testing shows that only materials used have a positive and significant effect on the emergence of scrap materials. The accounting treatment is done by debiting Cash IDR 5,258,753.99 and crediting Work in Process-Raw Material Cost IDR 5,258,753.99. The cost of goods manufactured of ceramic products after accounting treatment for scrap material is lower than before. The selling price also decreased for the same product. The operating profit will increase IDR 5,013,038.64 (use original selling price) and decrease IDR 1,272,112.67 (use selling price after treatment for scrap material). The emergence of scrap material causes environmental problems. Environmental accounting overcomes this by removing scrap material from its place. The transfer is done by selling at a price of half the standard price. The proceeds from the sale are treated as a deduction from the cost of raw materials in an account in the Work in Process-Raw Materials Cost credit.","PeriodicalId":37952,"journal":{"name":"Engineering Solid Mechanics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70761037","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

Orthotropic plates with dynamic vertical seismic load modeled as multi line 正交各向异性板的动力竖向地震荷载为多线模型

Engineering Solid Mechanics Pub Date : 2023-01-01 DOI: 10.5267/j.esm.2023.1.002

Toni Hartono Bagio, S. W. Alisjahbana, H. Darjanto, Najid Najid

{"title":"Orthotropic plates with dynamic vertical seismic load modeled as multi line","authors":"Toni Hartono Bagio, S. W. Alisjahbana, H. Darjanto, Najid Najid","doi":"10.5267/j.esm.2023.1.002","DOIUrl":"https://doi.org/10.5267/j.esm.2023.1.002","url":null,"abstract":"Calculation plate floor concrete, using a static load which is a gravity load consisting of a live load and a dead load, with various of boundary conditions, floor slabs are orthotropic plate, and rarely account for dynamic loads due to vertical seismic loads, with other boundary conditions, such as Clamped, simply supported, ES (Elastic Support), ER (Elastic Restraint), and ESR (Elastic Support and Restraint). Analytical solution based on the Modified Bolotin Method to analyze floor slab under Vertical Peak Ground Acceleration (PGAv), the natural frequency solution based on auxiliary Levy’s type problems. Dynamic vertical seismic loads using multiline, first line at 0 < t < 0.5 is linear equation, second line at 0.05 < t < 0.15 is quadratic equation, third line 0.15 > t < 0.6 is sextic equation, last line, t > 0.6 is linear equation, vertical seismic load with two conditions far fault and near fault, multi-line equation are depending on (PGAv/g). A numerical example is given, for various boundary conditions, and far fault, translational stiffness (kx, ky) and rotational stiffness (cx ,cy), from the results of plate calculations due to dynamic vertical seismic loads with 5 types of edge support, ES (elastic support) is the best result.","PeriodicalId":37952,"journal":{"name":"Engineering Solid Mechanics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70761280","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

Thermoelastic micro-stretch solid immersed in an infinite inviscid fluid and subject to a rotation under two theories 在两种理论下，热弹性微拉伸固体浸入无限大的无粘流体中并受旋转影响

Engineering Solid Mechanics Pub Date : 2023-01-01 DOI: 10.5267/j.esm.2023.2.002

M. Othman, E. E. Eraki, Sarhan. Y. Atwa, Mohamed F. Ismail

引用次数: 0

Experimental study of artificial lightweight aggregates using coal fly ash and epoxy resin 粉煤灰与环氧树脂合成人工轻质集料的试验研究

Engineering Solid Mechanics Pub Date : 2023-01-01 DOI: 10.5267/j.esm.2023.5.007

Ani Firda, A. Saggaff, Hanafiah Hanafiah, S. Saloma

{"title":"Experimental study of artificial lightweight aggregates using coal fly ash and epoxy resin","authors":"Ani Firda, A. Saggaff, Hanafiah Hanafiah, S. Saloma","doi":"10.5267/j.esm.2023.5.007","DOIUrl":"https://doi.org/10.5267/j.esm.2023.5.007","url":null,"abstract":"A lack of natural aggregates in the future is unavoidable, which generates issues for building development. For many industries, natural resources constitute a significant source of revenue. As a result, light artificial aggregate is produced to anticipate the decreasing source of natural aggregate. Production of artificial geopolymer aggregates, fly ash from the burning of coal has been proposed. This paper investigates the optimal proportion of epoxy resin and coal fly ash-based synthetic aggregates. The artificial aggregates are produced following specific gravity and compressive strength standards that may be used as a component of lightweight structural concrete (LWC). The production polymer lightweight aggregate (PLA) comes from a combination of coal fly ash and epoxy resin. The results show that PLA 50:50 to PLA 74:26 can be used for 6 hours to make structural concrete with a strength of more than 17 MPa. PLA 80:20 could achieve compressive strength with the range of 7-17 MPa. PLA 84:16 achieves a compressive strength range of 0.35 to 7 MPa and is utilized as a non-structural element. However, the flexural strength values in concrete LWC 70:30 and LWC 80:20 are higher, at 46.1% and 7.63%, respectively.","PeriodicalId":37952,"journal":{"name":"Engineering Solid Mechanics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70762206","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 study of the shear strength properties of expansive soil treated with fly ash admixture 粉煤灰掺合料处理膨胀土抗剪强度特性研究

Engineering Solid Mechanics Pub Date : 2023-01-01 DOI: 10.5267/j.esm.2023.7.003

J. K. Naik, D. Bagal, P. K. Muduli

{"title":"A study of the shear strength properties of expansive soil treated with fly ash admixture","authors":"J. K. Naik, D. Bagal, P. K. Muduli","doi":"10.5267/j.esm.2023.7.003","DOIUrl":"https://doi.org/10.5267/j.esm.2023.7.003","url":null,"abstract":"The behavior of clay minerals in expansive soils causes them to exhibit shrink-swell characteristics, making them unsuitable for engineering purposes in their natural state. To address this problem, researchers conducted direct shear experiments using fly ash as an admixture and black cotton soil as an expanding soil to explore the strength parameter. The experiments were conducted with varying amounts of fly ash ranging from 2% to 20%. Two arrangements of test series were made, and in the principal series, tests were made utilizing five unique densities and comparing dampness contents. The outcomes showed that the point of inside grating and union expanded directly up to the ideal dampness content and most significant dry thickness before diminishing. The subsequent series showed that the end of inward rubbing grew straightly with the expansion of fly debris admixture, yet attachment reduced after 10% admixture. The decrease in shear strength was because of the diminished passion, as the fly debris' cohesionless attributes took over as the admixture rate increased above 10%. Based on these findings, adding fly ash in small quantities to black cotton soil is recommended to avoid weakening it.","PeriodicalId":37952,"journal":{"name":"Engineering Solid Mechanics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70762850","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

Comparison of different supervised machine learning algorithms for bead geometry prediction in GMAW process 不同有监督机器学习算法在GMAW过程中头部几何形状预测中的比较

Engineering Solid Mechanics Pub Date : 2023-01-01 DOI: 10.5267/j.esm.2022.12.003

T. Saeheaw

{"title":"Comparison of different supervised machine learning algorithms for bead geometry prediction in GMAW process","authors":"T. Saeheaw","doi":"10.5267/j.esm.2022.12.003","DOIUrl":"https://doi.org/10.5267/j.esm.2022.12.003","url":null,"abstract":"Gas Metal Arc Welding (GMAW) is an extensively implemented arc welding process through the control of input process parameters and the metal from the filler wire. Despite its popular use in various industries, the complex interrelationship between the actual bead and the varying welding parameters makes it challenging to predict appropriate bead geometries via mathematical modeling in a continually changing welding process. In this study, the Regression Learner App was used to compare the performance of supervised Machine Learning (ML) predictive models comprising the Linear Regression (LR), Regression Tree (RT), Support Vector Machine (SVM), Ensembles of Tree (ET), Gaussian Process Regression (GPR), and Artificial Neural Network (ANN) using GMAW dataset. The dataset was scaled and normalized at a range of -1 to +1 to facilitate the visualization of the variation effect. The wire feed speed, voltage, weld velocity, unmelted wire length, and melted wire volume were considered as the input parameters to predict the bead geometry. In addition, the five-fold cross-validation was employed to avoid overfitting and poor generalization. Finally, statistical indicators, namely the Coefficient of Determination (R2), Root Mean Squared Error (RMSE), and Mean Absolute Error (MAE), were performed on all developed models to evaluate their performance. Thus, the fine tree and ANN models achieved the highest prediction accuracies of 88–91%, signifying their potential use in future research. In short, the present study demonstrated the performance of various supervised ML algorithms for bead geometry prediction, which would assist the selection of appropriately supervised ML algorithms in future studies.","PeriodicalId":37952,"journal":{"name":"Engineering Solid Mechanics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70760515","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

A study on the effect of thickness and spherical diagonal for LYP Infill Plate of shear walls 厚度和球面对角线对LYP剪力墙填充板受力影响的研究

Engineering Solid Mechanics Pub Date : 2023-01-01 DOI: 10.5267/j.esm.2022.11.003

M. Mohammadiasl, A. Baghban, P. Beiranvand, H. Babaali

引用次数: 0

The effect of stacking sequence and fiber orientation on tensile and flexural strength of fiber reinforced composite fabricated by VARTM process 叠层顺序和纤维取向对VARTM工艺制备的纤维增强复合材料拉伸和弯曲强度的影响

Engineering Solid Mechanics Pub Date : 2023-01-01 DOI: 10.5267/j.esm.2022.9.001

H. Patel, H. Dave

引用次数: 0