Engineering Solid Mechanics最新文献_第8页

Fracture characterization of bonded composites: A comparative study 粘结复合材料断裂特性的比较研究

Engineering Solid Mechanics Pub Date : 2022-01-01 DOI: 10.5267/j.esm.2021.8.001

N. Choupani, A. Torun

{"title":"Fracture characterization of bonded composites: A comparative study","authors":"N. Choupani, A. Torun","doi":"10.5267/j.esm.2021.8.001","DOIUrl":"https://doi.org/10.5267/j.esm.2021.8.001","url":null,"abstract":"Bonded joints have important benefits over conventional joining techniques such as rivets, welding, bolts and nuts in structural applications, particularly for components prepared of composite or polymeric materials. Due to the involvement of many geometric, material and construction variables, and the complex fracture and mechanical modes offered in the bonded joints, a proper consideration of fracture behavior is required to fully achieve their benefits. The fractures in bonded joints are mainly of three types; interlaminar (delamination), adhesive (interfacial) and cohesive crack. For a particular defect, crack propagation may occur in the tensile (mode I), the shear (mode II), and the tear (mode III) and their combinations (mixed mode). This study deals with topics such as theories of bonded composite joints and repairs, finite element analysis and fracture-based analysis and tests of mixed-mode cohesive, interfacial and interlaminar fracture mechanics. By employing geometrical factors extracted from finite element analysis and experimental results obtained from a modified Arcan test fixture, the mixed-mode cohesive, interfacial, and interlaminar fracture toughness are determined and fracture surfaces obtained are discussed.","PeriodicalId":37952,"journal":{"name":"Engineering Solid Mechanics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70759989","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: 9

Comparison of stress separation procedures. experiments versus theoretical formulation 应力分离程序的比较。实验与理论建构

Engineering Solid Mechanics Pub Date : 2022-01-01 DOI: 10.5267/j.esm.2022.1.003

Jorge Guillermo Díaz Rodríguez

引用次数: 1

Numerical model of interation of package of open shells with a weakly compressible filler in a friction shock absorber 摩擦减振器中开口壳与弱可压缩填料相互作用的数值模型

Engineering Solid Mechanics Pub Date : 2022-01-01 DOI: 10.5267/j.esm.2022.3.002

A. Velychkovych

{"title":"Numerical model of interation of package of open shells with a weakly compressible filler in a friction shock absorber","authors":"A. Velychkovych","doi":"10.5267/j.esm.2022.3.002","DOIUrl":"https://doi.org/10.5267/j.esm.2022.3.002","url":null,"abstract":"The problems of protecting equipment, structures and operators from the harmful effects of vibrations are among the most painful topics of modern mechanical engineering. In this research an original design of a friction shock absorber is presented in which the principle of operation is based on the contact interaction of a package of open shells with weakly compressible deformable filler. The proposed design is simple and technologically advanced, suitable for operation under high dynamic loads and at the same time has a compact transverse dimension. Such shock absorbers are projected to be used in the mining and oil and gas industries. A finite element model of a friction shock absorber with two contact pairs has been constructed: the first contact pair is \"filler - package of open shells\"; the second contact pair is \"inner shell of the package - outer shell\". The contacting bodies were presented as separate arrays of finite elements and the conditions of frictional interaction on the contact surfaces were set in the form of Coulomb's law. We considered the behavior of such a structurally nonlinear system under the action of a monotonic and nonmonotonic load. In the course of the study, the main operational characteristics of the shock absorber including the strength, rigidity, hysteresis characteristics and natural frequencies were determined. The possibility of adjusting the rigidity and shock-absorbing characteristics of the proposed device is discussed.","PeriodicalId":37952,"journal":{"name":"Engineering Solid Mechanics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70760496","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: 6

A comparative analysis of the stress-strain state of disc specimens in assessing the structural strength of materials 材料结构强度评估中圆盘试样应力-应变状态的对比分析

Engineering Solid Mechanics Pub Date : 2022-01-01 DOI: 10.5267/j.esm.2021.12.001

L. Tsvik, E. Zenkov

引用次数: 0

Concrete compressive strength of mix proportioning cockle shell, glass powder and epoxy resin under hot water curing condition through response surface methodology 利用响应面法研究了热水养护条件下螺壳、玻璃粉、环氧树脂配合比混凝土的抗压强度

Engineering Solid Mechanics Pub Date : 2022-01-01 DOI: 10.5267/j.esm.2022.4.001

S. Sugito, S. W. Alisjahbana, H. Riyanto

{"title":"Concrete compressive strength of mix proportioning cockle shell, glass powder and epoxy resin under hot water curing condition through response surface methodology","authors":"S. Sugito, S. W. Alisjahbana, H. Riyanto","doi":"10.5267/j.esm.2022.4.001","DOIUrl":"https://doi.org/10.5267/j.esm.2022.4.001","url":null,"abstract":"Nowadays, the significant demand for concrete has become a problem in concrete using aggregate from waste. Using standard concrete is recommended to reduce the breakdown of buildings. Unfortunately, standard materials used to produce previous concrete are not entirely environmentally friendly. As a result, many researchers have committed their awareness to identifying eco-friendlier substitutions in manufacturing concrete substitution aggregate from waste. In this respect, this paper discussed the proposed efficient procedure to indicate the compressive strength from mixed proportioning cockle shell, glass powder, and epoxy resin as concrete under hot water curing conditions (60°C, 4 hr) using response surface methodology. The experimental design used in this research uses a response surface methodology. There are three aggregates to be investigated, namely cockle shell powder, glass powder and epoxy resin under hot water curing condition (60°C, 4 hr). Under hot water curing conditions, this research discovered that adding 4.0% cockle shell powder and 10.0 % glass powder increased the compressive strength to 104.68 MPa. On the other hand, 4.0% cockle shell powder, 10.0% glass powder and 2% epoxy resin under hot water curing conditions improved the compressive strength to 115.70 MPa. It was therefore inferred that the use of both cockle shell powder and glass powder to produce cleaner and compressive strength concrete is applicable, both mechanically and environmentally.","PeriodicalId":37952,"journal":{"name":"Engineering Solid Mechanics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70760606","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

Studying the road grip of firefighting and rescue motorcycles when moving straight 研究消防救援摩托车直线行驶时的路面抓地力

Engineering Solid Mechanics Pub Date : 2022-01-01 DOI: 10.5267/j.esm.2022.4.004

V. Bảy, Du Tai, Hoang Son, L. A. Tuan, H. Nhan

引用次数: 0

Combined method of grinding and homogenization of fine powders rubbers and other polymers 橡胶及其它聚合物细粉的研磨及均质联合方法

Engineering Solid Mechanics Pub Date : 2022-01-01 DOI: 10.5267/j.esm.2022.6.002

V. Sirota, M. Kovaleva, Igor' E. Shabanov, M. Ageeva, A. S. Kaledin, Andrey A. Selivanov, A. Olisov, N. Alfimova

引用次数: 0

Solar Dome Integration as Technical New in Water Desalination: Case Study Morocco Region Rabat-Kenitra 太阳能穹顶集成作为海水淡化新技术:以摩洛哥地区为例

Engineering Solid Mechanics Pub Date : 2021-10-19 DOI: 10.21203/rs.3.rs-966654/v1

S. Lachhab, A. Bliya, E. A. Ibrahmi, L. Dlimi

{"title":"Solar Dome Integration as Technical New in Water Desalination: Case Study Morocco Region Rabat-Kenitra","authors":"S. Lachhab, A. Bliya, E. A. Ibrahmi, L. Dlimi","doi":"10.21203/rs.3.rs-966654/v1","DOIUrl":"https://doi.org/10.21203/rs.3.rs-966654/v1","url":null,"abstract":"\u0000 In order to improve distillate water, this paper presents a study of the solar dome system that is considered as one of the most important economical solutions in the domain of drinking water production. For this, a mathematical model was built from equations describing the optical and thermal phenomenon involved in this process. The concentration of radiation and the heat flow were simulated in each 0.1m² of the dome which using the metrological parameters of Morocco’s region Rabat-Salé-Kenitra. The results can follow the evolution of the temperature of glass, salt water, point dew temperature, saturation pressure and evaporation rate as well as humidity reached in August month for the study zone. For this, a numerical implementation on Matlab and Ansys are compared with measurements for the same parameters showed in the domain study of single slope. The comparison results are more significant by the rise of the ray concentration rate reached until 99% if the inclination angle of the heliostat divided into three intervals. The saturation pressure increases as long as with the rate of evaporation and the humidity that produces ordinary daily fresh water.","PeriodicalId":37952,"journal":{"name":"Engineering Solid Mechanics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41597637","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

The Application of Standard Nonlinear Solid Material Models in Modelling the Tensile Behaviour of the Supraspinatus Tendon 标准非线性实体材料模型在冈上肌腱拉伸行为模拟中的应用

Engineering Solid Mechanics Pub Date : 2021-08-13 DOI: 10.20944/preprints202108.0298.v1

H. Ngwangwa, T. Pandelani, F. Nemavhola

{"title":"The Application of Standard Nonlinear Solid Material Models in Modelling the Tensile Behaviour of the Supraspinatus Tendon","authors":"H. Ngwangwa, T. Pandelani, F. Nemavhola","doi":"10.20944/preprints202108.0298.v1","DOIUrl":"https://doi.org/10.20944/preprints202108.0298.v1","url":null,"abstract":"Tendons transmit forces from muscles to bones through joints. Typically, tendons and muscles work together to innovate a particular type of motion. Therefore, in order for the tendons to find attachment to the bones, they are naturally adapted as much thinner strands than the muscles that they serve. Thus, they are often subjected to much higher stresses than the muscles that they actually serve in any given action. As a result, tendons are susceptible to injuries that may lead to a permanent dysfunction in joint mobility due to the fact that the scar tissue that forms after healing does not often have the same mechanical properties of the original tissue. It is, therefore, very important to understand the mechanical response of tendons. This paper examines the performances of two viscoelastic standard nonlinear models in modelling the elastic and plastic behaviour of the tendon in the light of a well-known hyperelastic Yeoh model. The use of the Yeoh model is more for validating the performances of the viscoelastic models within the elastic region rather than for comparison purposes. Yeoh model’s selection was based on its superior performance in modelling the elastic phase of soft tissue as reported in previous studies combined with its simplicity. The results show that the two standard nonlinear solid models perform extremely well both in fitting accuracies and in correlating stress results. The most promising result is the fact that the two standard nonlinear models can model tendon behaviour in the nonlinear plastic region. It is also noted that the two standard nonlinear models are physically insightful since their optimisation parameters can be easily interpreted in terms of tendon elasticity and viscoelastic parameters.","PeriodicalId":37952,"journal":{"name":"Engineering Solid Mechanics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43428256","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: 6

A numerical analysis of compressive residual stresses in cold gas dynamic spray (CGDS) deposition method 冷气体动态喷射沉积法压缩残余应力的数值分析

Engineering Solid Mechanics Pub Date : 2021-02-20 DOI: 10.1016/J.MATPR.2020.12.096

S. Oyinbo, T. Jen, P. Oviroh

引用次数: 1