2018新材料国际发展趋势高层论坛

职位/职称:

单位: 德国航空航天中心

报告论坛: 新材料产业与技术投资促进国际论坛

报告题目: CMC Design Chain from Testing to Modeling – Characterization and Simulation of Mechanical Behavior of Ceramic Matrix Composites

简历:

施远,博士,2017年5月在德国卡尔斯鲁厄理工学院取得博士学位。现任德国航空航天中心(DLR)工程方法和结构技术研究所组长及项目负责人、德国炭复合材料协会(CCeV)模拟与仿真小组组长。
主要从事陶瓷基复合材料的设计与应用研究。主要研究方向有:碳纤维及氧化物纤维增强陶瓷基复合材料在不同服役条件下的性能与失效研究;力学性能的模拟与仿真以及失效准则;各类陶瓷基复合材料微结构设计与其结构部件的计算和优化设计;新的工业标准(DIN和ISO)的开发;陶瓷基复合材料进一步研发和其制造方法的发展和优化等。目前已于国际一流期刊杂志发表论文十余篇,并在国际一流会议作专题报告十余次,主持、规划和参与了10余个欧盟、德国与陶瓷基复合材料相关的项目。

摘要:

Because of their favorable mechanical properties at high temperature and comparatively low density, Ceramic Matrix Composites (CMCs) have received considerable attention for aerospace defense, energy and environmental applications in the recent years. Currently, extensive research is being done on CMCs for their applications in “hot-zone” structures, as a replacement for metal alloys. The global CMC market is growing at a rapid rate. Geographically, the market is dominated by the USA, with a majority share of approx. 60 percent followed by the rest of the world. The market was valued at around one billion US$ in 2013 and is expected to grow at a Compound Annual Growth Rate (CAGR) of about 10 percent until 2018. The Global CMC market is driven by many growth factors. Increased demand from the Aviation industry is one of the major drivers in the Global CMC market. The Leap program initiated by GE Aviation is the major trend being witnessed by the Global CMC market. Increased economic development and growth of the Aviation sector in China has led to an increased demand for CMC in China. Despite the presence of several drivers, the Global CMC market is facing some challenges. The dearth of global demand is hindering the growth of this market. As most of the demand is being generated from developed nations, especially the US and west European, manufacturers are finding it difficult to expand geographically. In addition, the premium pricing of CMC-based products is a major challenge for vendors in the Global CMC market.
The application of CMCs strongly depends on the precise prediction of the failure behavior under real loading conditions. Therefore a comprehensive modeling approach is necessary which describes experimental testing results dependent on microstructure and fiber orientation as well as local defects like delamination or voids. The deterministic simulation presentedhere is based on a design chain consisting of non-destructive investigation of microstructure, inverse laminate theory for definition of laminate properties, finite element modeling for calculation of critical stresses and strains, definition of failure criteria, and resulting failure prediction considering effects of defects. Experimental data from all-oxide composite WHIPOX as well as from C/C-SiC processed via liquid silicon infiltration are used in order to proof the design chain. It is shown that in-plane strength and stiffness of WHIPOX can be predicted precisely considering any fiber orientation. The impact of interlaminar defects on failure prediction is shown on C/C-SiC composites. Here defects are implemented in the finite element model considering microstructural information from computer tomography and ultrasonic inspection. With use of fracture mechanical data damage evolution and valid failure prediction is possible and design and optimized engineering of CMC components is achievable.

请现场注册

重要日期

会议开始时间

2018-09-16

会议结束时间

2018-09-18

报到时间

2018-09-16

poster提交截止日期

2018-08-30

报告人摘要提交截止日期

2018-08-25

联系方式

王方 
电话:029-86226599
传真:029-86282362
materialschina@163.com


王媛
电话: 13464049904
yuan209108@imr.ac.cn 

富甘霖(参展及赞助)
电话:13811320379 
13811320379@163.com

高虹(财务)
电话:029-86226599
传真:029-86282362
zgcljz@126.com

 

Powered by YConf.org · Manage Conference