Composites Engineering最新文献

An effective joint of continuous SiC/Ti-6Al-4V composites by diffusion bonding 用扩散键连接SiC/Ti-6Al-4V连续复合材料

Composites Engineering Pub Date : 1995-01-01 DOI: 10.1016/0961-9526(95)00060-Z

Shinji Fukumoto, Akio Hirose, Kojiro F. Kobayashi

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引用次数: 3

Factors controlling the transverse tensile properties of unidirectional SiC/Ti-6AI-4V 单向SiC/Ti-6AI-4V横向拉伸性能的控制因素

Composites Engineering Pub Date : 1995-01-01 DOI: 10.1016/0961-9526(94)00095-Q

Dong Sheng Li, Michael R. Wisnom

{"title":"Factors controlling the transverse tensile properties of unidirectional SiC/Ti-6AI-4V","authors":"Dong Sheng Li, Michael R. Wisnom","doi":"10.1016/0961-9526(94)00095-Q","DOIUrl":"10.1016/0961-9526(94)00095-Q","url":null,"abstract":"<div><p>A parametric study is carried out to investigate various factors that influence the transverse properties of unidirectional SiC/Ti. Interface debonding is the beginning of material failure. It is important because a composite with debonded interfaces is no longer integral and it will be weakened. An interface failure criterion is developed. Selected models are analysed to investigate possible effects on interface failure initiation. The main considerations are the interfacial residual stresses and the stress concentration factors for the applied transverse load. Residual stresses are beneficial for transverse loading because they tend to delay interface debonding. The residual stress distribution is discussed. Increasing the interface strength improves the transverse properties. Decreasing fibre volume fraction by keeping the same fibre spacing and increasing the ply thickness yields higher stress and strain to interface failure. When the volume fraction is kept constant, the closer the fibres are placed, the higher the interface failure stress and strain. With the same model geometry, the interface debonds slightly earlier with rectangular fibre packing than with staggered packing. In most cases, the matrix material is elastic before interface failure initiates. The non-linear stress-strain behaviour is mainly due to interface debonding.</p></div>","PeriodicalId":100298,"journal":{"name":"Composites Engineering","volume":"5 3","pages":"Pages 235-255"},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0961-9526(94)00095-Q","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73672305","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: 13

Analyses of fiber push-out tests performed on Nicalon/SiC composites with tailored interfaces 具有定制界面的Nicalon/SiC复合材料纤维推出试验分析

Composites Engineering Pub Date : 1995-01-01 DOI: 10.1016/0961-9526(95)99801-A

C.H. Hsueh , F. Rebillat , J. Lamon , E. Lara-Curzio

引用次数: 17

Stability of functionally graded hybrid composite plates 功能梯度混合复合材料板的稳定性

Composites Engineering Pub Date : 1995-01-01 DOI: 10.1016/0961-9526(95)00036-M

Victor Birman

{"title":"Stability of functionally graded hybrid composite plates","authors":"Victor Birman","doi":"10.1016/0961-9526(95)00036-M","DOIUrl":"10.1016/0961-9526(95)00036-M","url":null,"abstract":"<div><p>This paper presents a formulation of the stability problem for a rectangular composite plate reinforced by two types of fibers, one of them being both stiffer and more expensive than the other. An obvious design solution based on cost containment is to concentrate stiffer and more expensive fibers in the area of the plate where they can provide a maximum benefit to its stability. In the present paper, the stiffer fibers replace a certain fraction of “ordinary” fibers in the layers of the plate oriented along the load direction. Moreover, a distribution of the volume fraction of these fibers across the width of the corresponding layers is nonuniform (piece-wise distribution).</p><p>The goal is to maximize the buckling load subject to the constraint on the total cross-sectional area of the stiffer fibers. The solution can be obtained exactly by integrating the equation of equilibrium for each plate region where the stiffnesses are constant and satisfying the continuity and boundary conditions. Another approach, which is employed in this paper, is based on the Galerkin procedure. Numerical examples illustrate a possibility of a significant enhancement of the buckling load using functionally graded hybrid composite plates.</p></div>","PeriodicalId":100298,"journal":{"name":"Composites Engineering","volume":"5 7","pages":"Pages 913-921"},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0961-9526(95)00036-M","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77765995","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: 59

The general problem of thermoelastic waves in anisotropic periodically laminated composites 各向异性周期性层合复合材料热弹性波的一般问题

Composites Engineering Pub Date : 1995-01-01 DOI: 10.1016/0961-9526(95)00087-4

Muhammad A. Hawwa , Adnan H. Nayfeh

引用次数: 32

A multicontinuum theory for structural analysis of composite material systems 复合材料体系结构分析的多连续统理论

Composites Engineering Pub Date : 1995-01-01 DOI: 10.1016/0961-9526(95)00077-Z

A. Hansen, M. Garnich

引用次数: 19

High-order bending of sandwich beams with a transversely flexible core and unsymmetrical laminated composite skins 具有横向柔性芯和非对称层压复合材料表皮的夹层梁的高阶弯曲

Composites Engineering Pub Date : 1995-01-01 DOI: 10.1016/0961-9526(95)93440-7

Y. Frostig, Y. Shenhar

{"title":"High-order bending of sandwich beams with a transversely flexible core and unsymmetrical laminated composite skins","authors":"Y. Frostig, Y. Shenhar","doi":"10.1016/0961-9526(95)93440-7","DOIUrl":"10.1016/0961-9526(95)93440-7","url":null,"abstract":"<div><p>The bending behavior of a sandwich beam with a “soft” core and unsymmetrical laminated composite skins has been analytically investigated. The effects of the extension-bending coupling caused by the unsymmetrical layups on the bending behavior, are presented. The skins may be made of different materials, different layups, i.e. symmetrical or unsymmetrical, different geometries and may have different boundary conditions (even at the same section). The “soft” core is considered compressible and a change in its height is allowed. The analysis uses variational principles and models the core as a two-dimensional elastic medium, and the skins as one-dimensional composite laminated beams, or a composite panel with cylindrical bending. The analysis is general, rigorous, includes high-order effects and uses closed-form solutions for any type of sandwich construction, for any type of loading and for any combination of boundary conditions. The solutions include the stress and displacement fields along the beam and through the height of the core. Local effects in the vicinity of concentrated loads that consist of dimples and high bending moments in the skins and abrupt changes in the peeling stresses, are studied.</p></div>","PeriodicalId":100298,"journal":{"name":"Composites Engineering","volume":"5 4","pages":"Pages 405-414"},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0961-9526(95)93440-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91429052","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: 77

Transient response of a composite beam subject to elasto-plastic impact 弹塑性冲击下复合梁的瞬态响应

Composites Engineering Pub Date : 1995-01-01 DOI: 10.1016/0961-9526(95)00018-I

A.P. Christoforou, A.S. Yigit

引用次数: 18

A study on the influence of fiber-matrix interphase properties on ultrasonic wave behavior using effective elastic property models 利用有效弹性特性模型研究纤维-基质界面特性对超声波特性的影响

Composites Engineering Pub Date : 1995-01-01 DOI: 10.1016/0961-9526(95)00012-C

Krishnan Balasubramaniam, Yuyin Ji, Steven Gardner

引用次数: 1

Mechanical properties of fiber glass and Kevlar woven fabric reinforced composites 玻璃纤维和凯夫拉纤维机织增强复合材料的力学性能

Composites Engineering Pub Date : 1995-01-01 DOI: 10.1016/0961-9526(95)00100-2

Youjiang Wang, Jian Li, Dongming Zhao

引用次数: 50