主讲人

野田尚昭 教授

时 间

2019年9月22日（周日）下午14:00

地 点

山东大学千佛山校区东配楼四层学术报告厅

嘉宾简介：

野田尚昭教授为日本九州工业大学大学院工学研究院、机械智能工学研究系教授。现为日本机械工程学会会士(JSME Fellow)、日本自动车技术会会士(JSAE Fellow)、日本材料学会破坏力学委员会委员、日本机械学会材料力学部门弹性数理解析发展普及及利用研究会委员、日本微电子封装学会委员、科学研究费委员会审查委员、社团法人日本钢铁协会委员会员、日本塑性加工学会会员。在日本国内及国际学术期刊共发表论文 400 余篇，其中 EI、SCI 收录近 200 篇，出版著作 11 部。

曾在多个国际会议(EMA2013、FFW2014、FFW2015、FFW2016、DAMAS2017、FFW2017、MSAM2018、PCM2018)担任大会主席，获得日本机械学会材料力学部门奖贡献奖(2017)、日本材料学会学术贡献奖(2010)、日本素形材中心(SOKEIZAI)工业技术奖(2010)及中华人民共和国驻福冈总领事馆表彰(2016)。

报告内容：

In a wide industrial field, the bolt-nut joint is unitized as an important   machine element and widely used. To ensure the safety of the structure and   reduce cost, low-cost bolt-nut connections with good anti-loosening   performance and high fatigue strength are always required especially in   automotive engineering. To improve the strength of the bolt-nut connections,   previous researchers mainly focus on stress reduction at the root of the   thread by changing the shape of the bolt, and the effect of the materials on   the fatigue strength has also been researched. In this study, a slight pitch   difference between bolt and nut is considered, and both fatigue experiment   and finite element analyses are conducted. The cracks in the bolt specimens   are observed and the improvement mechanism of fatigue life is considered by   comparing the experimental results with the finite element analytical   results. The analytical results can explain the experimental results of the   crack positions as well as the improvement mechanism of fatigue life.   Furthermore, to improve the fatigue life more effectively, lager root   radiuses ρ of bolts and nuts are considered both experimentally and   analytically. It is found that the fatigue life of the bolts can be improved   by enlarging the radius of the root comparing with standard M16 bolts. In   addition, experiments and analysis of slight pitch difference bolt joints   with larger root radius have also been conducted, and the fatigue life of the   bolt joints is significantly improved by introducing a pitch difference and   enlarging the root radius.

主 题

关于人类社会环境与微生物之间关系的研究;

KICS(北九州相互依存的可持续发展企业联盟)的介绍；

主讲人

中野光一 教授

时 间

2019年9月22日（周日）下午14:00

地 点

山东大学千佛山校区东配楼四层学术报告厅

报告内容：

1. 微生物及其分类；

2. 微生物的数量、增殖速度和循环；

3.人与微生物的关系；

4. 微生物影响腐蚀(MIC)及其机理；