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(12月21日15:30)Finite Volume Method for Solids and Structures Compressible and incompressible materials

副标题:


报告题目:Finite Volume Method for Solids and Structures 

Compressible and incompressible materials

报告人:           Dr. Wenke Pan(潘文科)

Siemens Industrial Turbomachinery Ltd Lincoln, United Kingdom

时间:20171221日(周四)下午15:30

地点:中科院力学所1号楼344会议室

报告摘要:

Finite element (FE) method has been the dominant method in numerical structural analysis for many years. Finite volume (FV) method is widely used in computational fluid dynamics (CFD). There are however many practical problems in which the interaction between a moving fluid and a deforming structure must be analysed. The FV method has been successfully used to analyse some types of solids and structures problems and it could potentially be used in solving fluid structure interaction problems by coupling it to existing CFD software. To work towards this goal, it is necessary to further investigate the capability of FV method for solids and structures.

This study presents the FV method formulation for large deformation hyperelastic materials with compressible and incompressible behaviour, as well as the FV method with a special procedure which incorporates with rotational degree of freedom for 2D linear elastic compressible and incompressible materials. Computed results from the test cases using the FV method show excellent agreement with theoretical results. From the results of the test case, the incorporation of rotational degrees of freedom indicates that the new FV procedure is more accurate than the equivalent FE formulation.

报告人简介:

         ,                    ,     .  1997年从中国科技大学博士后出站后,他先后在英国多所大学从事科研和教职工作, 曾与包括英 国皇家院士和工程院院士在内的多名学者合作完成了由 英国国家工程和物理基金会 盟第七框架计划以及劳斯莱斯资助的多项课题。他的研究方向包含: 单晶体和多晶体塑 性变形理论,大型框架结构非线性分析,有限体积法在固体和结构中的应用,微成型的设计与 优化,飞机涡轮风扇叶片超塑性成形材料本构关系及应用等等。在任教职期间,他培养了十多名 硕士和一名博士研究生, 主讲三门程课, 并为多家公司提供结构安全技术咨询服务。

他现在就职于西门子工业涡轮发动机英国公司, 并任结构安全与完整性主任分析工程师, 主要从 事涡轮机关键部件的低周疲劳, 高周疲劳,热机械耦合疲劳, 裂纹扩展寿命,蠕变及极限载荷分 析工作。他发现公众文献中关于平行柱状多晶叶片各向异性本构关系的错误,并成功地建立了 正确本构关系,使此类叶片初始疲劳寿命预测准确度得到了极大的提高。

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