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Pipe joining construction of a bicycle frame 自行车车架的管道连接结构
Composites Manufacturing Pub Date : 1995-01-01 Epub Date: 2008-07-14 DOI: 10.1016/0956-7143(95)99653-A
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引用次数: 0
Laminate wrinkling scaling laws for ideal composites 理想复合材料的层压起皱结规律
Composites Manufacturing Pub Date : 1995-01-01 Epub Date: 2008-07-15 DOI: 10.1016/0956-7143(95)95003-H
T.G. Gutowski, G. Dillon, S. Chey, H. Li
{"title":"Laminate wrinkling scaling laws for ideal composites","authors":"T.G. Gutowski,&nbsp;G. Dillon,&nbsp;S. Chey,&nbsp;H. Li","doi":"10.1016/0956-7143(95)95003-H","DOIUrl":"10.1016/0956-7143(95)95003-H","url":null,"abstract":"<div><p>For the double diaphragm forming process, laminate wrinkling is a major failure mode for both thermoplastic and thermoset composites. In this paper, we compare experimental observations on the wrinkling of aligned fibre thermoset composites with theoretical scaling laws based on ideal kinematics (i.e. constant interfibre spacing and constant thickness). Differences between the ideal predictions and actual results are explained in terms of deviations from ideal kinematics. Differences between thermoplastic and thermoset composites are discussed, and an empirical scaling law for the effect of part size on wrinkling is given.</p></div>","PeriodicalId":100299,"journal":{"name":"Composites Manufacturing","volume":"6 3","pages":"Pages 123-134"},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0956-7143(95)95003-H","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86798542","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: 50
Tryfan Rogers memorial lecture 特里凡·罗杰斯纪念演讲
Composites Manufacturing Pub Date : 1995-01-01 Epub Date: 2008-07-15 DOI: 10.1016/0956-7143(95)95002-G
A.J.M. Spencer
{"title":"Tryfan Rogers memorial lecture","authors":"A.J.M. Spencer","doi":"10.1016/0956-7143(95)95002-G","DOIUrl":"10.1016/0956-7143(95)95002-G","url":null,"abstract":"","PeriodicalId":100299,"journal":{"name":"Composites Manufacturing","volume":"6 3","pages":"Pages 119-122"},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0956-7143(95)95002-G","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74047675","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: 1
Characterization of manufacturing effects for buckling-sensitive composite cylinders 屈曲敏感复合材料气缸制造效果的表征
Composites Manufacturing Pub Date : 1995-01-01 Epub Date: 2008-07-14 DOI: 10.1016/0956-7143(95)99649-D
M.K. Chryssanthopoulos, V. Giavotto , C. Poggi
{"title":"Characterization of manufacturing effects for buckling-sensitive composite cylinders","authors":"M.K. Chryssanthopoulos,&nbsp;V. Giavotto ,&nbsp;C. Poggi","doi":"10.1016/0956-7143(95)99649-D","DOIUrl":"10.1016/0956-7143(95)99649-D","url":null,"abstract":"<div><p>This paper presents a detailed statistical analysis on geometric imperfections recorded on two series of nominally identical composite cylinders. These defects can be classified in two categories, both due to the particular manufacturing method used: out-of-roundness and change of thickness due to the overlapping of various layers. The statistical analysis is developed for various purposes: to evaluate the common properties of cylinders with different laminations, to build up a characteristic model for the geometric imperfections suitable for probabilistic simulations in buckling analysis and to identify the parameters for quality control processes. The analysis of the change in thickness due to overlapping layers allows evaluation of the stiffening effects of the manufacturing process that, in some cases, could affect the buckling behaviour of composite cylinders. A standard procedure for the characterization and qualification of manufacturing processes for composite shells, with particular attention to the factors that influence their buckling behaviour, is proposed.</p></div>","PeriodicalId":100299,"journal":{"name":"Composites Manufacturing","volume":"6 2","pages":"Pages 93-101"},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0956-7143(95)99649-D","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73107284","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: 23
Rheological characterization of continuous fibre composites in oscillatory shear flow 连续纤维复合材料在振荡剪切流中的流变特性
Composites Manufacturing Pub Date : 1995-01-01 Epub Date: 2008-07-15 DOI: 10.1016/0956-7143(95)95007-L
R.W. Roberts, R.S. Jones
{"title":"Rheological characterization of continuous fibre composites in oscillatory shear flow","authors":"R.W. Roberts,&nbsp;R.S. Jones","doi":"10.1016/0956-7143(95)95007-L","DOIUrl":"10.1016/0956-7143(95)95007-L","url":null,"abstract":"<div><p>The anisotropic rheology of a model composite consisting of a temperature-sensitive viscous liquid matrix reinforced by aligned and virtually inextensible fibres of nylon has been studied experimentally using a custom-built linear oscillator. The composite was characterized dynamically both along and transverse to the fibre direction over a wide frequency range and for different fibre volume concentrations. Towards the limit of zero shear the composite was found to exhibit a yield stress. The temperature dependence of the matrix dynamic viscosity was used to study the dependence of the longitudinal and transverse dynamic viscosities of the composite on the dynamic viscosity of the matrix. The dependence of the composite dynamic viscosities on fibre volume concentration is compared with models of the steady shear dependence for aligned fibre systems that have been reported in the literature.</p></div>","PeriodicalId":100299,"journal":{"name":"Composites Manufacturing","volume":"6 3","pages":"Pages 161-167"},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0956-7143(95)95007-L","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87396359","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: 19
Experiments on compression moulding and pultrusion of thermoplastic powder impregnated towpregs 热塑性粉末浸渍拖曳料的压缩成型和拉挤试验
Composites Manufacturing Pub Date : 1995-01-01 Epub Date: 2008-07-14 DOI: 10.1016/0956-7143(95)93711-R
Karthik Ramani, Harshad Borgaonkar, Chris Hoyle
{"title":"Experiments on compression moulding and pultrusion of thermoplastic powder impregnated towpregs","authors":"Karthik Ramani,&nbsp;Harshad Borgaonkar,&nbsp;Chris Hoyle","doi":"10.1016/0956-7143(95)93711-R","DOIUrl":"10.1016/0956-7143(95)93711-R","url":null,"abstract":"<div><p>Powder impregnation techniques have been developed to increase design and manufacturing flexibility with thermoplastic composites. The effect of pressure, temperature, mould closing rate and time on the consolidation of poly(ether ketone ketone) (PEKK) powder impregnated glass fibre towpregs in compression moulding were studied. A design of experiments approach was used. Isothermal pultrusion experiments using nylon 11 and PEKK powder impregnated glass fibre tows were conducted. These experiments were repeated at different temperatures and pulling speeds. The microstructural changes during coating and consolidation of the powder impregnated tows were studied. Temperature and mould closing rate were observed to be the significant parameters affecting consolidation in compression moulding. Superposition of the pulling force-pulling speed data at different processing temperatures was demonstrated in pultrusion.</p></div>","PeriodicalId":100299,"journal":{"name":"Composites Manufacturing","volume":"6 1","pages":"Pages 35-43"},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0956-7143(95)93711-R","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89597679","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: 17
Towpregs from recycled plastics by powder fusion coating and method of production therefor 粉末熔覆再生塑料的纤维浸渍料及其生产方法
Composites Manufacturing Pub Date : 1995-01-01 Epub Date: 2008-07-14 DOI: 10.1016/0956-7143(95)90010-1
{"title":"Towpregs from recycled plastics by powder fusion coating and method of production therefor","authors":"","doi":"10.1016/0956-7143(95)90010-1","DOIUrl":"https://doi.org/10.1016/0956-7143(95)90010-1","url":null,"abstract":"","PeriodicalId":100299,"journal":{"name":"Composites Manufacturing","volume":"6 1","pages":"Page 61"},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0956-7143(95)90010-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136930872","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
Orientation changes in a chopped fibre-reinforced thermoplastic composite in compression moulding 短切纤维增强热塑性复合材料在压缩成型中的取向变化
Composites Manufacturing Pub Date : 1995-01-01 Epub Date: 2008-07-15 DOI: 10.1016/0956-7143(95)95021-P
P. Thevenin, D. Perreux
{"title":"Orientation changes in a chopped fibre-reinforced thermoplastic composite in compression moulding","authors":"P. Thevenin,&nbsp;D. Perreux","doi":"10.1016/0956-7143(95)95021-P","DOIUrl":"10.1016/0956-7143(95)95021-P","url":null,"abstract":"<div><p>In this paper, the change of fibre orientation that occurs during the moulding flow of a composite material, based on a thermoplastic matrix reinforced by chopped fibres, is investigated. The fibre orientation is described by a distribution function which is divided into two elementary distribution functions, each being concerned with part of the fibres. The model presents the changes of these functions, taking into account the interaction between all fibres and the transverse shear. The model agrees with experimental data obtained in the flow of composites in a plate-type compression moulding process.</p></div>","PeriodicalId":100299,"journal":{"name":"Composites Manufacturing","volume":"6 3","pages":"Pages 281-287"},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0956-7143(95)95021-P","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88424008","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
On surface energy effects in composite impregnation and consolidation 复合材料浸渍固结过程中的表面能效应
Composites Manufacturing Pub Date : 1995-01-01 Epub Date: 2008-07-15 DOI: 10.1016/0956-7143(95)95022-Q
Marco Connor, Staffan Toll, Jan-Anders E. Månson
{"title":"On surface energy effects in composite impregnation and consolidation","authors":"Marco Connor,&nbsp;Staffan Toll,&nbsp;Jan-Anders E. Månson","doi":"10.1016/0956-7143(95)95022-Q","DOIUrl":"10.1016/0956-7143(95)95022-Q","url":null,"abstract":"<div><p>Macroscopic capillary pressure and microscopic interparticle forces due to surface tension are examined. A general equation for the capillary pressure during impregnation is derived and subsequently specialized to particular processes. For fibre composites, the capillary pressure can be of the order of ±10<sup>4</sup> Pa, the sign depending on the contact angle between solid and liquid. Next, the attractive and repulsive forces between particles connected by liquid droplets are analysed by two different model geometries. At contact angles between π/2 and π, an equilibrium particle separation distance is obtained in the absence of applied force. At lower contact angles, spontaneous impregnation can be achieved. The effect of capillary action on impregnation rate may be significant if applied pressures are small (e.g. filament winding) but negligible at applied pressures greater than ∼100 kPa (e.g. compression moulding). The topology and concentration of voids may, however, be greatly influenced by surface energies.</p></div>","PeriodicalId":100299,"journal":{"name":"Composites Manufacturing","volume":"6 3","pages":"Pages 289-295"},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0956-7143(95)95022-Q","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85033406","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: 12
Pultruded fibre-reinforced furfuryl alcohol resin composites: 2. Static, dynamic mechanical and thermal properties 拉挤纤维增强糠醇树脂复合材料:静态，动态机械和热性能
Composites Manufacturing Pub Date : 1995-01-01 Epub Date: 2008-07-14 DOI: 10.1016/0956-7143(95)93713-T
C.C.M Ma, M.S Yn, J.L Han, C.J Chang, H.D Wu
{"title":"Pultruded fibre-reinforced furfuryl alcohol resin composites: 2. Static, dynamic mechanical and thermal properties","authors":"C.C.M Ma,&nbsp;M.S Yn,&nbsp;J.L Han,&nbsp;C.J Chang,&nbsp;H.D Wu","doi":"10.1016/0956-7143(95)93713-T","DOIUrl":"10.1016/0956-7143(95)93713-T","url":null,"abstract":"<div><p>A novel process has been developed to manufacture pultruded fibre-reinforced furfuryl alcohol (FA) resin composites. In this paper, the effects of fibre reinforcement type and content on the static, dynamic mechanical and thermal properties of the FA resin pultruded composites are investigated. The mechanical properties increase with increasing volume content of the glass or carbon fibres, with the glass fibre-reinforced furfuryl alcohol (GF/FA) composite exhibiting maximum mechanical property values at a filler content of 5 phr. High catalyst content and die temperatures are necessary for manufacturing FA pultruded composites with high filler content. GF/FA pultruded composites retain their mechanical properties at elevated temperatures better than do unsaturated polyester pultruded composites. Dynamic mechanical analysis revealed that the dynamic storage modulus of the GF/FA pultruded composites increases with increasing post-cure time. Tan δ of GF/FA decreases and its glass transition temperature increases with decreasing pulling rate or increasing post-cure time. The glass and carbon fibre-reinforced FA pultruded composites possess high heat distortion temperature and good flexural properties, in comparison with other pultruded composites.</p></div>","PeriodicalId":100299,"journal":{"name":"Composites Manufacturing","volume":"6 1","pages":"Pages 53-58"},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0956-7143(95)93713-T","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80874156","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: 8
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