Transactions of the Japan Society of Mechanical Engineers. A最新文献_第5页

Microscopic fatigue crack behavior in precipitation strengthening stainless steel A286 沉淀强化不锈钢A286的微观疲劳裂纹行为

Transactions of the Japan Society of Mechanical Engineers. A Pub Date : 2011-12-01 DOI: 10.1299/KIKAIA.77.223

S. Hamada, Hao Wu, H. Noguchi

引用次数: 1

Effect of pre-strain on low cycle fatigue strength of austenitic stainless steel SUS316NG 预应变对SUS316NG奥氏体不锈钢低周疲劳强度的影响

Transactions of the Japan Society of Mechanical Engineers. A Pub Date : 2011-12-01 DOI: 10.1299/KIKAIA.77.843

Shota Hasunuma, Y. Miyata, T. Ogawa, K. Sakaue

引用次数: 13

Prediction of time-dependent dimensional change induced by thermal residual stress relaxation in CFRP cross-ply laminates CFRP交叉层合板热残余应力松弛引起的随时间尺寸变化预测

Transactions of the Japan Society of Mechanical Engineers. A Pub Date : 2011-12-01 DOI: 10.1299/KIKAIA.77.1238

Y. Arao, Yukie Okudoi, S. Takeda, J. Koyanagi, S. Utsunomiya, H. Kawada

{"title":"Prediction of time-dependent dimensional change induced by thermal residual stress relaxation in CFRP cross-ply laminates","authors":"Y. Arao, Yukie Okudoi, S. Takeda, J. Koyanagi, S. Utsunomiya, H. Kawada","doi":"10.1299/KIKAIA.77.1238","DOIUrl":"https://doi.org/10.1299/KIKAIA.77.1238","url":null,"abstract":"In this paper, time-dependent dimensional change in a symmetrical cross-ply laminates was predicted by transverse properties of the CFRP laminates. CFRP with pitch-based carbon fiber and cyanate ester resin was chosen for the study. Viscoelastic property was obtained by performing tensile creep test for unidirectional laminates in the transverse direction. In addition, shrinkage caused by physical aging was obtained by measuring the strain change for unidirectional laminates as well. Experimental results were applied to the classical lamination theory in order to predict the time-dependent dimensional change of a symmetrical cross-ply laminates. The strain change in a symmetrical cross-ply laminates was obtained experimentally using an extensometer, and the result was compared with the prediction. From the comparison, it was concluded that the proposed prediction method is appropriate. It was also found that physical aging shrinkage must be compensated in order to evaluate the relaxation modulus from tensile creep test result. The effect of physical aging shrinkage must also be considered in prediction of time-dependent deformation in cross-ply laminates.","PeriodicalId":388675,"journal":{"name":"Transactions of the Japan Society of Mechanical Engineers. A","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129598545","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 deformation due to the ply angle misalignment in cfrp laminates (the effect of the stacking sequence on thermal deformation) cfrp层合材料铺层角度错位引起的面外变形(堆叠顺序对热变形的影响)

Transactions of the Japan Society of Mechanical Engineers. A Pub Date : 2011-12-01 DOI: 10.1299/KIKAIA.77.619

Y. Arao, J. Koyanagi, S. Takeda, Shin Utsunomwa, Niroyuki Kawada

{"title":"Out-of-plane deformation due to the ply angle misalignment in cfrp laminates (the effect of the stacking sequence on thermal deformation)","authors":"Y. Arao, J. Koyanagi, S. Takeda, Shin Utsunomwa, Niroyuki Kawada","doi":"10.1299/KIKAIA.77.619","DOIUrl":"https://doi.org/10.1299/KIKAIA.77.619","url":null,"abstract":"Strict geometrical stability is required for the precise structures like telescopes. Unpredictable out-of-plane deformation is a serious problem when we use CFRP (Carbon Fiber Reinforced Plastic) laminate to the precise structure. This out-of plane deformation of symmetrical CFRP laminate mainly arise from combination effects of ply angle misalignment and temperature change. We discussed here is effective stacking sequence of CFRP laminate that mitigate the deformation caused by the ply angle misalignment. The analysis based on laminate theory was performed to calculate the thermal deformation. In this analysis, the random numbers were added to each layers as ply angle misalignments. The analytical results were obtained statistically by Monte Carlo method. Mohr's curvature circle was also incorporated to evaluate the deformation as P-V (peak to Valley) values. We performed the analysis with various stacking sequence. It was calculated that the symmetric cross-ply laminates deformed 10 times larger than the other quasi-symmetric laminates. In the case of the total ply number is less than 12, the stacking sequence in the laminate has a significant effects on the thermal deformation. However, if the total number ply number is more than 24, effect of stacking sequence on the thermal deformation becomes negligible. We also discussed the geometrical stability of CFRP mirror by considering unavoidable ply angle misalignment. It was presumed that the CFRP mirror can be used for wide range of wave length when the back structure was attached to CFRP laminates.","PeriodicalId":388675,"journal":{"name":"Transactions of the Japan Society of Mechanical Engineers. A","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129692331","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

Detection of Photon Emission during Crack Propagation in Silica Glass by Fast Time-Resolved Measurement 快速时间分辨测量法检测二氧化硅玻璃裂纹扩展过程中的光子发射

Transactions of the Japan Society of Mechanical Engineers. A Pub Date : 2011-12-01 DOI: 10.1299/KIKAIA.77.1028

Yoshitaka Sato, T. Shiota, K. Yasuda

引用次数: 2

Pore collapsed behavior of porous aluminum during compression process by using X-ray CT nondestructive observation 利用x射线CT无损观察多孔铝在压缩过程中的孔隙崩塌行为

Transactions of the Japan Society of Mechanical Engineers. A Pub Date : 2011-12-01 DOI: 10.1299/KIKAIA.77.1025

Y. Hangai, R. Yamaguchi, Shunya Takahashi, T. Utsunomiya, O. Kuwazuru, N. Yoshikawa

引用次数: 0

アルミニウム合金ダイカストの疲労強度に対する鋳巣の定量的影響評価（第1報，鋳巣と鋳肌の影響に関する実験的検証）铸巢对铝合金压铸疲劳强度的定量影响评价(1)

Transactions of the Japan Society of Mechanical Engineers. A Pub Date : 2011-12-01 DOI: 10.1299/KIKAIA.77.39

理桑水流, 村田陽三, 登雄宇都宮, 半谷禎彦, 矢野貴之, スジットビダハル, 椎原良典, 北原総一郎, 吉川暢宏

引用次数: 4

Damage detection in CFRP without data from intact structures using statistical analysis of resistance-temperature characteristics 基于电阻-温度特性统计分析的CFRP损伤检测方法

Transactions of the Japan Society of Mechanical Engineers. A Pub Date : 2011-12-01 DOI: 10.1299/KIKAIA.77.181

Yoshiro Suzuki, A. Todoroki, Y. Mizutani, R. Matsuzaki

引用次数: 6

Evaluation of transverse crack initiation in cross-ply CFRP laminates under fatigue loading 疲劳载荷作用下CFRP交叉层合板横向裂纹萌生的评价

Transactions of the Japan Society of Mechanical Engineers. A Pub Date : 2011-12-01 DOI: 10.1299/KIKAIA.77.1123

Keigo Takamura, A. Hosoi, N. Sato, H. Kawada

{"title":"Evaluation of transverse crack initiation in cross-ply CFRP laminates under fatigue loading","authors":"Keigo Takamura, A. Hosoi, N. Sato, H. Kawada","doi":"10.1299/KIKAIA.77.1123","DOIUrl":"https://doi.org/10.1299/KIKAIA.77.1123","url":null,"abstract":"In this study, transverse crack initiation in cross-ply CFRP laminates under fatigue loading was evaluated focusing on the transverse crack growth and saturation. The number of cycles that a transverse crack initiates was predicted by the analytical model on the basis of the modified Paris law. In addition, the lower threshold of the transverse crack formation was researched by a modified Paris-law, and the fatigue limit of the transverse crack initiation was evaluated by calculating the stress applied in 90° layer where the increase of the transverse cracks was saturated. Moreover, transverse crack was observed by using scanning electron microscope (SEM) in order to investigate the mechanism of transverse crack initiation. As the results, the analytical results for predicting the transverse crack initiation showed good agreement with the experimental results. Moreover, it was shown that the lower threshold of the transverse crack formation existed, and that the stress applied in 90° layer at saturation state was almost equivalent to the fatigue limit of the transverse crack initiation from the experimental results. From the observation with SEM, it was found that the initiation of the transverse crack under fatigue loading depended on the interface property between fiber and matrix.","PeriodicalId":388675,"journal":{"name":"Transactions of the Japan Society of Mechanical Engineers. A","volume":"86 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132153397","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

Fatigue limit evaluation of blunt-notched specimen using Δk th value of small crack (1st report: Study on the determination of the initial crack size with annealed carbon steel when stress ratio is zero) 用Δk小裂纹值评价钝缺口试样的疲劳极限(第一次报告:应力比为零时退火碳钢初始裂纹尺寸的测定研究)

Transactions of the Japan Society of Mechanical Engineers. A Pub Date : 2011-12-01 DOI: 10.1299/KIKAIA.77.228

T. Matsueda, Y. Aono, H. Noguchi

引用次数: 0