Engineering Solid Mechanics最新文献_第10页

Methods of influence coefficients to evaluate stress and deviation distributions of parts under operating conditions - A review 评定零件在工作条件下的应力和偏差分布的影响系数方法。综述

Engineering Solid Mechanics Pub Date : 2021-01-01 DOI: 10.5267/j.esm.2020.5.005

A. Corrado, W. Polini

引用次数: 1

Laboratory experimental study of contact interaction between cut shells and resilient bodies 剪切壳与弹性体接触相互作用的室内实验研究

Engineering Solid Mechanics Pub Date : 2021-01-01 DOI: 10.5267/j.esm.2021.5.003

A. Velychkovych, O. Bedzir, V. Shopa

{"title":"Laboratory experimental study of contact interaction between cut shells and resilient bodies","authors":"A. Velychkovych, O. Bedzir, V. Shopa","doi":"10.5267/j.esm.2021.5.003","DOIUrl":"https://doi.org/10.5267/j.esm.2021.5.003","url":null,"abstract":"The study presented herein describes promising designs of shell vibration isolators. The feature of the proposed designs is the cut thin-walled shell usage as the main bearing link. These resilient elements have high load capacity and, on the other hand, can provide the desired level of damping. From the point of view of mechanics, shell resilient elements are considered as the deformable systems with dry friction. When simulating these systems, structurally nonlinear non-conservative mixed contact issues of cut shell – resilient body frictional interaction arise. In order to take into account all essential options of the aforementioned issues and specify shell resilient element peculiarities of behavior under operational loads, the authors used the method of laboratory experiments for research. We considered two different contact systems. The first one is a cylindrical shell cut along its generatrix, which contacts a deformable filler. The second system is a cylindrical shell with several incomplete slots interacting with the elastic filler. The stress state and radial displacements of the shells, pliability of the resilient elements, and energy dissipation in the contact systems were time-tracked. As a result, we obtained relations for monitored options of the contact bodies and deformation diagrams for different physical-mechanical and geometrical options of the systems It was found that for a fixed cycle asymmetry coefficient with an increase in the friction coefficient between the shell and the filler, the amount of energy dissipated per cycle gradually decreases. The idea of optimizing shell vibration protection devices according to the criterion of maximum absorption of energy from external influences by determining the required tribological properties of contacting pairs is declared.","PeriodicalId":37952,"journal":{"name":"Engineering Solid Mechanics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70760134","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: 7

Setting up the braking force measurement system of the tractor semi-trailer 建立牵引车半挂车制动力测量系统

Engineering Solid Mechanics Pub Date : 2021-01-01 DOI: 10.5267/j.esm.2021.6.001

N. T. Tung

引用次数: 2

A comparative study of the quality of sandcrete cement blocks and quarry dust cement blocks 砂混凝土水泥砌块与采石场粉尘水泥砌块质量的比较研究

Engineering Solid Mechanics Pub Date : 2021-01-01 DOI: 10.5267/J.ESM.2021.3.002

R. Lumor, Lawrence Abladey, D. Tikoli, Alfred Gand, Ezekiel Osei Owusu, K. Offei-Nyako, I. E. Edim

{"title":"A comparative study of the quality of sandcrete cement blocks and quarry dust cement blocks","authors":"R. Lumor, Lawrence Abladey, D. Tikoli, Alfred Gand, Ezekiel Osei Owusu, K. Offei-Nyako, I. E. Edim","doi":"10.5267/J.ESM.2021.3.002","DOIUrl":"https://doi.org/10.5267/J.ESM.2021.3.002","url":null,"abstract":"With the increase of construction activities in Ghana, there is an increasing demand in building materials leading to the shortage of the conventional materials. The informal sector is gradually seeing the introduction of quarry dust as a substitute of sand in block production. This paper focuses on a comparative analysis of the quality of sandcrete blocks and quarry dust cement blocks. Block samples were gathered from various suppliers around the Prampram and Dawhenya areas and through various laboratory tests were tested for their dimension tolerance, water absorption and compressive strengths. Aggregate samples were also taken from suppliers for sieve analyses. The study revealed that the quarry dust cement blocks contained relatively higher percentages of coarse grade particles compared to the sandcrete blocks. The total average water absorption of sandcrete blocks was found to be 3.90% while quarry dust showed an improved value of 3.28%. Sandcrete blocks were averagely found to be of a higher compressive strength of 4.31N/mm2, with quarry dust at 3.0N/mm2. The study suggested the likelihood of a lesser use of cement in the production of quarry dust cement blocks due to the similarities in colour between the quarry dust and cement, hence, negatively affecting its compressive strength.","PeriodicalId":37952,"journal":{"name":"Engineering Solid Mechanics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70759771","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

Mechanical characterization and static validation of a satellite honeycomb sandwich structure 卫星蜂窝夹层结构的力学特性及静态验证

Engineering Solid Mechanics Pub Date : 2021-01-01 DOI: 10.5267/j.esm.2020.5.004

A. Aborehab, M. Kassem, A. F. Nemnem, M. Kamel

引用次数: 2

The impact of heat input on the mechanical properties and microstructure of High Strength Low Alloy steel welded joint by GMA welding process 热输入对低合金钢GMA焊接接头力学性能和组织的影响

Engineering Solid Mechanics Pub Date : 2021-01-01 DOI: 10.5267/J.ESM.2021.2.001

S. Rizvi, R. Singh, S. Gupta

引用次数: 1

Comparative study of graphene-polypyrrole and borophene-polypyrrole composites: molecular dynamics modeling approach 石墨烯-聚吡咯和硼苯-聚吡咯复合材料的比较研究:分子动力学建模方法

Engineering Solid Mechanics Pub Date : 2021-01-01 DOI: 10.5267/J.ESM.2021.1.006

O. Folorunso, Y. Hamam, R. Sadiku, S. Ray, Gbolahan Joseph Adekoya

{"title":"Comparative study of graphene-polypyrrole and borophene-polypyrrole composites: molecular dynamics modeling approach","authors":"O. Folorunso, Y. Hamam, R. Sadiku, S. Ray, Gbolahan Joseph Adekoya","doi":"10.5267/J.ESM.2021.1.006","DOIUrl":"https://doi.org/10.5267/J.ESM.2021.1.006","url":null,"abstract":"In the search for the solution to energy storage problems, this study investigates the interfacial energy interaction and temperature stability of the composites made of polypyrrole-graphene-borophene (PPy-Gr-Bon) by using molecular dynamics simulations. From the calculated thermodynamics and interfacial energies of the system, comparisons between the ternary and the binary-binary systems were made. The materials in the entity show a good degree of temperature stability to a dynamic process at 300, 350, 400, and 450 K. Moreso, at 300 K, the interaction energy of PPy-Gr, PPy-Bon, and PPy-Gr-Bon are: -5.621e3 kcal/mol, -26.094e3 kcal/mol, and -28.206e3 kcal/mol respectively. The temperature stability of the systems is in the order of: PPy-Gr-Bon > PPy-Bon > PPy-Gr. The effect of temperature on the interaction energy of the systems was also investigated. The ternary system showed higher stability as the temperature increased. In addition, the radial distribution function computed for the three systems revealed that there is a strong, but non-chemical bonding interaction between PPy-Gr-Bon, Bon-PPy, and Gr-PPy. By considering the excellent mechanical properties of PPy-Gr-Bon and the already established high electrical conductivity and chemical stability of Gr, Bon and PPy, their composite is therefore suggested to be considered for the manufacturing of electrochemical electrodes.","PeriodicalId":37952,"journal":{"name":"Engineering Solid Mechanics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70759226","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: 2

Usage of foamed bitumen in asphalt mixtures 泡沫沥青在沥青混合料中的应用

Engineering Solid Mechanics Pub Date : 2021-01-01 DOI: 10.5267/j.esm.2020.5.003

P. Hýzl, Ondrej Dasek, D. Stehlík

引用次数: 0

Retraction Note: Soil shrinkage and consolidation study on flood embankments in swamp irrigation areas 注:沼泽灌区洪水堤防土壤收缩固结研究

Engineering Solid Mechanics Pub Date : 2021-01-01 DOI: 10.5267/j.esm.2021.4.0r1

L. Afriani, G. Susilo, Sri Nawangrini, Iswan Iswan

引用次数: 0

Soil shrinkage and consolidation study on flood embankments in swamp irrigation areas 沼泽灌区洪水堤防土壤收缩固结研究

Engineering Solid Mechanics Pub Date : 2021-01-01 DOI: 10.5267/J.ESM.2021.1.003

L. Afriani, G. Susilo, Sri Nawangrini, Iswan Iswan

{"title":"Soil shrinkage and consolidation study on flood embankments in swamp irrigation areas","authors":"L. Afriani, G. Susilo, Sri Nawangrini, Iswan Iswan","doi":"10.5267/J.ESM.2021.1.003","DOIUrl":"https://doi.org/10.5267/J.ESM.2021.1.003","url":null,"abstract":"Research in this paper discusses shrinking and consolidation of flood embankments soil in swamp irrigation areas. The flood embankments are made from swampy soil materials. The focus of this research is the reduction of dyke embankment height that occurs due to soil shrinkage and soil consolidation. Investigations about the time of consolidation and land subsidence that occurred on the embankment at certain periods after the embankment established were also carried out in this study. The research sites are some swamp irrigation areas in the Tulang Bawang Watershed, around North-East Lampung, Indonesia. This research was carried out by conducting laboratory tests on soil samples and field observations on the reduction in height of flood embankments in the study area. The research shows that the main cause of total decrease on the embankment is due to linear shrinkage, consolidation of soil under the embankment, an immediate subsidence, and the subsidence of the embankment themselves. Their contribution to total decrease of embankment is 42.51%, 34.48%, 18.32%, and 4.62%, respectively. Results also indicate that the ratio between the percentage of embankment consolidation in downstream area happen faster than the one in upstream area of the river.","PeriodicalId":37952,"journal":{"name":"Engineering Solid Mechanics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70759077","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: 2