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Prediction of cyclic large plasticity for prestrained structural steel using only tensile coupon tests

Frontiers of Structural and Civil Engineering 2013年第4期7卷 466-476页

作者： Liang-Jiu JIA Tsuyoshi KOYAMA hitoshi kuwamura Department of Architecture School of Engineeringthe University of TokyoTokyo 113-8656Japan

Cold-formed steel members,which experience complicated prestrain histories,are frequently applied in structural *** paper aims to predict cyclic plasticity of structural steels with tensile and compressive *** and cyclic tests on hourglass specimens with tensile and compressive prestrain are conducted,and compared with numerical simulations using the Chaboche *** approaches are taken in the *** first requires only the monotonic tensile test data from the prestrained steels,and the second requires both the monotonic tensile test data from the virgin steel and the prestrain *** first approach slightly overestimates the compressive stress for specimens with tensile prestrain,while the second approach is able to accurately predict the cyclic plasticity in specimens with tensile and compressive prestrain.

关键词： cyclic plasticity prestrain Chaboche model mild steel

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静剪切力作用下薄壁不锈钢板螺栓连接的有限元建模

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钢结构(中英文) 2008年第4期 85-86页

作者： Tae Soo Kim hitoshi kuwamura

最近的试验研究表明,日本现行钢结构设计标准(AIJ)不能准确预测薄壁(冷加工)SUS304不锈钢板的螺栓连接在静剪力作用下的极限状态,因此本文提出极限强度计算公式,说明不锈钢和薄壁钢板的机械特性。以现有试验数据作为参数研究的基础,采用... 详细信息

最近的试验研究表明,日本现行钢结构设计标准(AIJ)不能准确预测薄壁(冷加工)SUS304不锈钢板的螺栓连接在静剪力作用下的极限状态,因此本文提出极限强度计算公式,说明不锈钢和薄壁钢板的机械特性。以现有试验数据作为参数研究的基础,采用ABAQUS程序对三维实体单元进行有限元分析,以探究薄壁不锈钢板中螺栓剪切连接的结构性能。采用材料非线性和几何非线性分析法以预测螺栓连接的荷载-位移曲线。试验中试件发生的卷曲等连接板端部的平面外变形在不考虑几何缺陷的有限元模型分析中同样可观察到;在对卷曲对极限强度的影响进行量化检验外,提出适合于预测螺栓连接破坏模式的破坏准则。此外,有限元分析结果与以前试验结果相比可知,破坏模式和有限元推荐步骤预测的极限强度与试验结果具有良好的相关性,数值方法可提供具有合理精度的评估。

关键词：薄壁不锈钢螺栓连接失效模式极限强度卷曲有限元分析

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Analysis of a Questionnaire Survey regarding Current Conditions against Exposure to Anticancer Drugs and Reports of Cancer Chemotherapy at Outpatient Departments in Japan

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Pharmacology & Pharmacy 2017年第5期8卷 140-152页

作者： Tsuyoshi Shirakawa Tomoko Hara Kojiro Hata Kojiro Hata Kimitaka Suetsugu Hideki Kakimoto Kentaro Ogata Yousuke Ikari Hidenori Sasaki Makoto Takahashi Masaru Fukahori Miyuki Uoi Taito Esaki Mikako Hiraike Toshinobu Hayashi Akira Tokunaga Norio Ureshino Tsuneo kuwamura hitoshi Kusaba Kenji Mitsugi Eishi Baba Department of Pharmacy National Hospital Organization Kyushu Medical Center Fukuoka Japan Department of Oncology Miyazaki Prefectural Miyazaki Hospital Miyazaki Japan Department of Internal Medicine Fukuoka Wajiro Hospital Fukuoka Japan Department of Pharmacy Hamanomachi Hospital Fukuoka Japan Department of Pharmacy Kyushu University Hospital Fukuoka Japan Department of Pharmacy Fukuoka University Hospital Fukuoka Japan Department of Practical Pharmaceutical Science Faculty of Pharmaceutical Sciences Fukuoka University Fukuoka Japan Division of Medical Oncology Hematology and Infection Diseases Fukuoka University Hospital Fukuoka Japan Department of Pharmacy Kurume University Hospital Fukuoka Japan Division of Gastroenterology Kurume University Department of Medicine Fukuoka Japan Department of Pharmacy National Kyushu Cancer Center Fukuoka Japan Department of Gastrointestinal and Medical Oncology National Kyushu Cancer Center Fukuoka Japan Department of Pharmacy National Hospital Organization Kyushu Medical Center Fukuoka Japan Department of Pharmacy Saga-Ken Medical Centre Koseikan Saga Japan Department of Medical Oncology Saga-Ken Medical Centre Koseikan Saga Japan Department of Pharmacy Japan Community Healthcare Organization Kyushu Hospital Fukuoka Japan Department of Medicine and Comprehensive Biosystemic Science Kyushu University Graduate School of Medical Sciences Fukuoka Japan Department of Medical Oncology Hamanomachi Hospital Fukuoka Japan Department of Comprehensive Clinical Oncology Faculty of Medical Sciences Kyushu University Fukuoka Japan

[Background] Medical staff have many occasions to be exposed to anticancer drugs (ACDs) in the process of performing cancer chemotherapy. Although guidelines for the safe handling of ACDs have been published, actual measures against exposure to ACDs differ between hospitals, and no surveillance data regarding the conditions of each hospital in relation to performing chemotherapy in Japan are available. [Methods] To understand current measures against exposure to ACDs and problems related to cancer chemotherapy at outpatient departments, we conducted a questionnaire survey on doctors, pharmacists, and nurses in 10 leading hospitals for cancer chemotherapy in Japan. [Results] Responses were received from all 10 institutions. The hospital pharmacists prepared all ACDs for outpatients in each institution. All hospitals took basic measures against ACD exposure, such as using personal protective equipment and penetration-resistant waste containers. Conditions against exposure to ACDs generally improved between 2012 and 2015, especially in terms of conveyance of ACDs and use of a closed-system drug transfer device. However, no measures linking ACDs with administration routes or injection sites were commonly taken in any of the hospitals in 2015. [Conclusions] Conditions against ACD exposure improved between 2012 and 2015, possibly because new guidelines were issued. To improve measures for ACD exposure in Japan, preparing more appropriate manuals and offering more opportunities to medical staff for continuing education are considered important.

关键词： Exposure Anticancer Drugs Measurement Personal Protective Equipment Outpatient Service

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