复合材料期刊(英文)最新文献_第10页

Effect of Fiber Weight Ratio and Fiber Modification on Flexural Properties of Posidonia-Polyester Composites 纤维重量比和纤维改性对波希多尼-聚酯复合材料抗弯性能的影响

复合材料期刊(英文) Pub Date : 2016-07-01 DOI: 10.4236/OJCM.2016.63007

S. Zannen, Lassaad Ghali, M. Halimi, M. Hassen

引用次数: 10

Experimental Investigation of the Impact of Compression on the Petro-Physical and Micromechanical Properties of Wellbore Cement Containing Salt 压缩对含盐井眼水泥岩石物理和微观力学性能影响的实验研究

复合材料期刊(英文) Pub Date : 2016-07-01 DOI: 10.4236/OJCM.2016.63006

A. Oyibo, M. Radonjic

{"title":"Experimental Investigation of the Impact of Compression on the Petro-Physical and Micromechanical Properties of Wellbore Cement Containing Salt","authors":"A. Oyibo, M. Radonjic","doi":"10.4236/OJCM.2016.63006","DOIUrl":"https://doi.org/10.4236/OJCM.2016.63006","url":null,"abstract":"In this study, we investigated the effect of compression on the micromechanical and the petro- physical properties of salted wellbore cement systems. The experiments were conducted using a customized bench scale model, which utilized an expandable tubulars simulating the compression of a previously cemented casing under field-like conditions. The “mini-wellbore model” sample consisted of a pipe inside pipe assembly with a cemented annulus. The cement samples were cured in a water bath for 28 days prior to the compression experiments to allow adequate hydration. The impact of compression on the cement’s petro-physical and mechanical properties was quantified by measuring the porosity, permeability and hardness of salt cement cores drilled parallel to the orientation of the pipe from the compacted cement sheath. Permeability (Core-flood) experiments were conducted at 21℃, 10,342 kPa confining pressure for a period of 120 minutes. During the core-flood experiments, conducted using Pulse-decay method, deionized water was flowed through cement cores to determine the permeability of the cores. The results obtained from these experiments confirmed that the compression of the cement positively impacted the cements ability to provide long term zonal isolation, shown by the effective reduction in porosity and permeability. Furthermore, the results confirm reduction in the detrimental effect of salt on the strength and stiffness in post-compression cement.","PeriodicalId":57868,"journal":{"name":"复合材料期刊(英文)","volume":"06 1","pages":"59-68"},"PeriodicalIF":0.0,"publicationDate":"2016-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70624108","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

Out of Plane Thermal Conductivity of Carbon Fiber Reinforced Composite Filled with Diamond Powder 金刚石粉填充碳纤维增强复合材料的面外导热性能

复合材料期刊(英文) Pub Date : 2016-04-06 DOI: 10.4236/OJCM.2016.62005

M. Srinivasan, P. Maettig, K. Glitza, B. Sanny, A. Schumacher, M. Duhovic, J. Schuster

{"title":"Out of Plane Thermal Conductivity of Carbon Fiber Reinforced Composite Filled with Diamond Powder","authors":"M. Srinivasan, P. Maettig, K. Glitza, B. Sanny, A. Schumacher, M. Duhovic, J. Schuster","doi":"10.4236/OJCM.2016.62005","DOIUrl":"https://doi.org/10.4236/OJCM.2016.62005","url":null,"abstract":"Highly conductive fillers have a strong influence on improving the poor out of plane thermal conductivity of carbon fiber reinforced composites. The objective of this study has been to investigate the role of the diamond powder (DP) in enhancing the out-of-plane thermal conductivity of the woven composites. Samples of the standard modulus T300 carbon fiber composite with 44% and 55% fiber volume fraction and the high modulus YS90A carbon fiber composite with 50% volume fraction were fabricated with their matrices comprising of neat epoxy and different loading of diamond powder within epoxy resin. Steady state thermal conductivity measurements were carried out and it was found from the measurements that the out of plane thermal conductivity of the standard modulus composite increased by a factor of 2.3 with 14% volume fraction of diamond powder in the composite while the out of plane thermal conductivity of the high modulus composite increased by a factor of 2.8 with 12% volume fraction of diamond powder in the composite. Finite Element Modeling (FEM) with the incorporation of microstructural characteristics is presented and good consistency between the measurements and FEM results were observed.","PeriodicalId":57868,"journal":{"name":"复合材料期刊(英文)","volume":"06 1","pages":"41-57"},"PeriodicalIF":0.0,"publicationDate":"2016-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70624096","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

On the Impact of Manufacturing Uncertainty in Structural Health Monitoring of Composite Structures: A Signal to Noise Weighted Neural Network Process 复合材料结构健康监测中制造不确定性的影响:一种信噪加权神经网络处理方法

复合材料期刊(英文) Pub Date : 2016-01-22 DOI: 10.4236/OJCM.2016.61004

H. Teimouri, A. Milani, R. Seethaler, A. Heidarzadeh

引用次数: 12

The Thermal and Crystallization Studies of Luffa Fiber Reinforced Poly Lactic Acid Composites 丝瓜纤维增强聚乳酸复合材料的热晶化研究

复合材料期刊(英文) Pub Date : 2016-01-01 DOI: 10.4236/OJCM.2016.61001

C. Parida, S. K. Dash, P. Chaterjee

{"title":"The Thermal and Crystallization Studies of Luffa Fiber Reinforced Poly Lactic Acid Composites","authors":"C. Parida, S. K. Dash, P. Chaterjee","doi":"10.4236/OJCM.2016.61001","DOIUrl":"https://doi.org/10.4236/OJCM.2016.61001","url":null,"abstract":"Poly lactic acid (PLA)—chemically treated fiber of Luffa cylindrica (LC) composites were fabricated by micro-compounding followed by injection molding method. Before reinforcement, LC fibers were exposed to chemical treatment like alkali treatment, bleaching and acid hydrolysis. The chemically treated LC fibers were then modified with Ca salts to explore their uses in bio medical industries. Thermal stability of chemically extracted cellulose fibers of LC and PLA composites reinforced with 2 wt%, 5 wt% and 10 wt% LC fibers were studied by thermo gravimetric analysis (TGA) in the temperature range from 30℃ to 700℃. Better interfacial bonding between fiber and matrix was evidenced by increased thermal stability of composites due to incorporation of fiber. Crystallization and melting behavior of PLA composites were studied in the temperature range from 30℃ to 170℃ at heating rate of 10°/minute. The crystallization temperature and crystallization enthalpy increased up to 2 wt% of LC fiber content and gradually decreased with further increase of fiber content in the composites. Double melting peaks were observed for all composite samples and possible explanations were suggested on the basis of different crystalline structure of PLA and melt crystallization phenomena.","PeriodicalId":57868,"journal":{"name":"复合材料期刊(英文)","volume":"06 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70623940","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

3D Printing of Continuous Carbon Fibre Reinforced Thermo-Plastic (CFRTP) Tensile Test Specimens 连续碳纤维增强热塑性塑料(CFRTP)拉伸试样的3D打印

复合材料期刊(英文) Pub Date : 2016-01-01 DOI: 10.4236/OJCM.2016.61003

F. V. D. Klift, Y. Koga, A. Todoroki, M. Ueda, Y. Hirano, R. Matsuzaki

引用次数: 404

Longitudinal Compressive Failure of Multiple-Fiber Model Composites for a Unidirectional Carbon Fiber Reinforced Plastic 单向碳纤维增强塑料多纤维模型复合材料纵向压缩破坏研究

复合材料期刊(英文) Pub Date : 2016-01-01 DOI: 10.4236/OJCM.2016.61002

T. Jeong, M. Ueda

引用次数: 4

Supercapacitor Consisting of a Form Core Sandwich with Woven Carbon Fiber Skin 由编织碳纤维外壳构成的芯芯夹层超级电容器

复合材料期刊(英文) Pub Date : 2015-09-16 DOI: 10.4236/OJCM.2015.54013

A. Todoroki, Tomohiro Sawada, Y. Mizutani, Yoshiro Suzuki

引用次数: 1

Controllable Crack Propagation in Off-Axis Crushing of Stitched Composite Absorbers 缝接复合材料吸波器离轴破碎中的可控裂纹扩展

复合材料期刊(英文) Pub Date : 2015-09-16 DOI: 10.4236/OJCM.2015.54012

N. Ghafari-Namini, H. Ghasemnejad

{"title":"Controllable Crack Propagation in Off-Axis Crushing of Stitched Composite Absorbers","authors":"N. Ghafari-Namini, H. Ghasemnejad","doi":"10.4236/OJCM.2015.54012","DOIUrl":"https://doi.org/10.4236/OJCM.2015.54012","url":null,"abstract":"Crack growth resistance plays a different role in crashworthiness analysis since the progressive energy absorption is based on controllable fracture mechanisms. In this regard, the present paper studies the efficient crack growth resistance in off-axis crushing of composite tubular structures by implementing natural fiber yarns. One of the through-to-thickness reinforcement methods known as stitching has been chosen to influence the axial and off-axis crushing process. Improving the crack growth resistance and appropriate fiber breakage at different stages of crushing process can significantly improve the resistance force and consequently the energy absorption capability of composite absorbers in axial and off-axis crushing. This analysis will be applied to non-stitched and stitched CFRP composite boxes which showed brittle fracture and transverse shearing crushing modes under off-axis loading of 10 degrees. The analytical methods are also implemented to analysze the effect of various failure mechanisms such as bending, friction, bundle fracture, and interlaminar crack growth for the observed crushing modes. The proposed model is able to predict the crushing load and crush force efficiency in close agreement from experimental studies.","PeriodicalId":57868,"journal":{"name":"复合材料期刊(英文)","volume":"05 1","pages":"93-100"},"PeriodicalIF":0.0,"publicationDate":"2015-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70624238","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

Physico-Mechanical Properties of Luffa aegyptiaca Fiber Reinforced Polymer Matrix Composite 埃及丝瓜纤维增强聚合物基复合材料的物理力学性能

复合材料期刊(英文) Pub Date : 2015-09-16 DOI: 10.4236/OJCM.2015.54014

S. I. Ichetaonye, I. Madufor, M. Yibowei, D. N. Ichetaonye

引用次数: 17