图 书 馆
预测飞机结构的故障-模拟不同尺度和时间的断裂Predicting Failure in Aircraft Structures – Simulating Fracture across Scales and Times |
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| 课程网址: | http://videolectures.net/kolokviji_bordas_aircraft_structures/ |
| 主讲教师: | Stéphane P. A. Bordas |
| 开课单位: | 卢森堡大学 |
| 开课时间: | 2018-03-06 |
| 课程语种: | 英语 |
| 中文简介: |  您可以每天在商用飞机上飞行两万年，而不会发生致命事故。这种非凡的安全水平是数十年的工程和材料科学研究的产物。同时，工程师们一直在努力生产更轻，更坚固的飞机，并增加了射程，因此金属逐渐被更轻的先进复合材料所替代，该复合材料占当今最先进飞机结构重量的一半以上。材料和结构的建模和仿真在很大程度上推动了这种进步，通过使工程师能够研究几乎各种设计策略，彻底改变了设计。本演示文稿将重点介绍已经提出，已经提出的挑战，并将对此类建模和仿真工具提出挑战，以努力预测更轻，更强，航程更长且更可靠的飞机的耐久性。我们还将讨论几种应用程序，其中界面是机械系统行为的关键，从复合材料飞机结构到外科手术模拟器，我们将展示和比较不同的选择方案以离散化涉及移动和自由界面的问题。最后，我们将定义数字孪生，并研究它们在工程和生物医学应用中的潜力。 |
| 课程简介: | You could fly every day of your life in a commercial aircraft for twenty thousand years without suffering a fatal accident. This extraordinary level of safety is the product of decades of engineering and materials science research. Simultaneously, engineers have strived to produce lighter and stronger aircraft, with increased range and metals have thus been gradually replaced by lighter advanced composite materials, which take up more than half of the structural weight of today's most advanced aircraft. Such progress has been largely enabled by modeling and simulation of materials and structures, which have revolutionized design by enabling engineers to investigate virtually various design strategies. This presentation will focus on the challenges which have been posed, are posed, and will be posed to such modeling and simulation tools in the strive to predict the durability of lighter, stronger, longer-ranging and more reliable aircraft. We will also discuss several applications where interfaces are key to the behavior of mechanical systems, ranging from composite aircraft structures to surgical simulators, and we will present and compare different alternatives to discretize problems involving moving and free interfaces. Finally, we will define digital twins and investigate their potential in engineering and biomedical applications. |
| 关 键 词: | 工程材料; 飞机结构; 机械系统 |
| 课程来源: | 视频讲座网 |
| 数据采集: | 2020-11-03：cjy |
| 最后编审: | 2020-11-04：zyk |
| 阅读次数: | 79 |