Journal of the Japanese Society for Experimental Mechanics最新文献_第4页

Evaluation of Microscopic Damage Behavior in Discontinuous Fiber Reinforced Resin Composites 不连续纤维增强树脂复合材料微观损伤行为评价

Journal of the Japanese Society for Experimental Mechanics Pub Date : 2015-09-29 DOI: 10.11395/JJSEM.15.188

T. Asano, R. Kitamura, Yasuhito Itami, Hideaki Inokuchi, Koji Koizumi, S. Ogihara

{"title":"Evaluation of Microscopic Damage Behavior in Discontinuous Fiber Reinforced Resin Composites","authors":"T. Asano, R. Kitamura, Yasuhito Itami, Hideaki Inokuchi, Koji Koizumi, S. Ogihara","doi":"10.11395/JJSEM.15.188","DOIUrl":"https://doi.org/10.11395/JJSEM.15.188","url":null,"abstract":"In this study, three-point bending tests were performed for discontinuous glass fiber reinforced plastic composite material. Specimens with both unspread and spread fiber bundles were used. In specimens with unspread fiber bundles (unspread specimens), fiber bundles (fiber length is about 12mm) is randomly-oriented. In specimens with spread fiber bundles (spread specimens), fibers are spread (fiber length is 4-6 mm) and no fiber bundle is observed in the specimens. In order to investigate the difference in damage behavior in unspread and spread specimens, damage growth behavior was observed by an optical microscope and acoustic emission (AE) behavior was monitored during bending test. In the unspread specimens, the stress-deflection curves showed nonlinear behavior which is due to the initial crack formation in fiber bundles whose fiber direction is almost perpendicular to the tensile stress. The stress-deflection curves also shows the intermittent stress reductions which corresponds to the crack growth at the fiber bundle interfaces. In the spread specimens, the stress-deflection curves showed almost linear behavior which reflects the fact that few damage is observed until the maximum stress is reached. It was also found that the spread specimens showed higher strength than the unspread specimens. The results of AE monitoring were well correlated with the stress-deflection curves and the optical damage observation.","PeriodicalId":282024,"journal":{"name":"Journal of the Japanese Society for Experimental Mechanics","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126795550","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

Setting of Optimum Conditions for Creating Fiber-Cement Stabilized Soil by Recycling Tsunami Sludge 海啸污泥回收制备纤维-水泥稳定土最佳条件的确定

Journal of the Japanese Society for Experimental Mechanics Pub Date : 2015-09-29 DOI: 10.11395/JJSEM.15.225

T. Satomi, H. Takahashi

引用次数: 0

Evaluation of Bending Characterization of Mechanical Quantity Sensor Made of Laminated Rubber Sheet 层压橡胶板机械量传感器弯曲特性评价

Journal of the Japanese Society for Experimental Mechanics Pub Date : 2015-09-29 DOI: 10.11395/JJSEM.15.181

T. Tsujikami, Kento Inoguchi, Yuzo Imabori, Masamitsu Kotani, K. Yamaguchi

{"title":"Evaluation of Bending Characterization of Mechanical Quantity Sensor Made of Laminated Rubber Sheet","authors":"T. Tsujikami, Kento Inoguchi, Yuzo Imabori, Masamitsu Kotani, K. Yamaguchi","doi":"10.11395/JJSEM.15.181","DOIUrl":"https://doi.org/10.11395/JJSEM.15.181","url":null,"abstract":"積層ゴムシート型力学センサーの曲げ特性評価辻上哲也,井ノ口健人,今堀勇三,小谷正光,山口和也 Evaluation of Bending Characterization of Mechanical Quantity Sensor Made of Laminated Rubber Sheet Tetsuya TSUJIKAMI, Kento INOGUCHI, Yuzou IMABORI, Masamitsu KOTANI and Kazuya YAMAGUCHI Mechanical quantity sensor made of laminated rubber sheet is used as a load sensor. Also, it can be flexed so the evaluation of the bending characteristic by a bending test was carried out. The bending test equipment was manufactured in order to carry out the test. As the result of the bending test, it was found that the relation between the voltage output of the sensor and an angle of the test piece is linear. Also, the bending characteristic under various conditions of gauge length, width, thickness, and structure of silicon rubber were investigated. Additionally, the bending simulation of the laminated rubber sensor by FEM was performed in order to consider new structures or materials. The boundary condition for the bending simulation and evaluation method has been proposed. The result of the bending simulation was in good agreement with the experiment by using the proposed equation. Moreover, the characteristic of the multistage bending was evaluated experimentally and analytically, and the result according to the theory was obtained.","PeriodicalId":282024,"journal":{"name":"Journal of the Japanese Society for Experimental Mechanics","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130553938","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

An Experimental Study on the Stabilization of Coral Gravel Beach using Bio-cement 生物水泥稳定珊瑚砾石滩的试验研究

Journal of the Japanese Society for Experimental Mechanics Pub Date : 2015-09-29 DOI: 10.11395/JJSEM.15.231

M. Fukue

引用次数: 0

Analysis of Fiber-Matrix Interfacial Stresses Using Experimental-numerical Hybrid Technique 纤维-基体界面应力的实验-数值混合分析

Journal of the Japanese Society for Experimental Mechanics Pub Date : 2015-09-29 DOI: 10.11395/JJSEM.15.169

T. Sakai, Y. Iihara, S. Yoneyama

引用次数: 0

Pool Boiling Heat Transfer Characteristics of Aqueous Lithium Bromide Solution 溴化锂水溶液的池沸腾传热特性

Journal of the Japanese Society for Experimental Mechanics Pub Date : 2015-08-01 DOI: 10.11395/JJSEM.15.S37

Yusuke Fujikawa, K. Mori, D. Takaoka, T. Wakabayashi, R. Kawakami

引用次数: 0

Development of Non-contact Scraped Surface Heat Exchanger 非接触式刮削表面换热器的研制

Journal of the Japanese Society for Experimental Mechanics Pub Date : 2015-08-01 DOI: 10.11395/jjsem.15.s31

T. Matsunaga, Keiichi Nakamura

{"title":"Development of Non-contact Scraped Surface Heat Exchanger","authors":"T. Matsunaga, Keiichi Nakamura","doi":"10.11395/jjsem.15.s31","DOIUrl":"https://doi.org/10.11395/jjsem.15.s31","url":null,"abstract":"In order to develop the non-contact scraped surface heat exchanger with the non-contact scraper blades, experiments were performed for cooling corn syrup water solution as a test process fluid flowing in a typical scraped surface heat exchanger with a constant clearance between the scraper blade and the heat transfer surface. The local heat transfer coefficient and the power consumption were measured by varying the flow rate and the viscosity of test process fluid, and the rotational speed of scraper blades for the some constant non-contact clearances in the different scraped angles. Based on these experimental data, the effects of the non-contact clearance and the scraped angle on Nusselt number and Power number were examined in comparison with these correlations for the perfect contact scraped surface heat exchanger with the blades pressed to the heat transfer surface by springs. As a result, it was clarified that Nusselt number and Power number in case of the noncontact clearance 0.2 mm had decreased from those in the perfect contact scraped surface heat exchanger by 0 30 % with an increase in rotational Reynolds number and by 60 % on the whole, respectively.","PeriodicalId":282024,"journal":{"name":"Journal of the Japanese Society for Experimental Mechanics","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131159474","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

Projection Method of Small Pitch Fringe Pattern Using Talbot Effect with Super Luminescent Diode for 3D Shape Measurement 利用超级发光二极管塔尔博特效应的小间距条纹图投影方法用于三维形状测量

Journal of the Japanese Society for Experimental Mechanics Pub Date : 2015-08-01 DOI: 10.11395/JJSEM.15.S81

Takumi Hayashi, M. Fujigaki, Y. Murata

引用次数: 2

Measurement of Material Constants (Young's Modulus and Poisson's Ratio) of Polypropylene Using Digital Speckle Pattern Interferometry (DSPI) 用数字散斑干涉法测量聚丙烯材料常数(杨氏模量和泊松比)

Journal of the Japanese Society for Experimental Mechanics Pub Date : 2015-08-01 DOI: 10.11395/JJSEM.15.S87

M. Kumar, K. K. Gaur, C. Shakher

引用次数: 26

Real Time Displacement Measurement of Bridge with Image Correlation Method 基于图像相关法的桥梁位移实时测量

Journal of the Japanese Society for Experimental Mechanics Pub Date : 2015-08-01 DOI: 10.11395/JJSEM.15.S50

Y. Niitsu, T. Iizuka

引用次数: 1