学术报告：Computational Forensics for the Laptop Bombing Case of Daallo Airlines Flight 159 in 2016
发布时间：2018-05-22 浏览次数：91
报告人：陈巩（Goong CHen）教授
报告时间：2018年5月25日上午10：00--12：00
报告地点：雁山校区数学学院5楼会议室
摘要：
Daallo Airlines is a Somalia-owned Airlines with hub located in the Djibouti-Ambouli International Airport in Djibouti. On February 2, 2016, its flight 159 en route from Mogadishu to Djibouti, a suicide bomber from the Islamic militant group Al-Shabaab built an explosive device into a laptop computer and set it off on the plane at an altitude of about 14,000ft (4,300m), five minutes after taking off from Mogadishu, Somalia. The explosion blew a large hole in the fuselage. However, pilots were able to land the plane safely back at the airport in Mogadishu, Somalia.
This is a most recent major terrorist airplane bombing case. In this talk, the speaker will first present examples of several past airplane bombing cases. We view what may happen when a large amount of explosives is detonated inside aiming at destroying an airliner. Some photographic evidence will also be discussed.
Then he will introduce the modeling and computational forensics regarding this particular Daallo Airlines bombing case, where only a small amount of explosives is used The mathematical and computer modeling of viscoplasticity, fracture and explosion by LS-DYNA will be used to study this problem and computed on the supercomputer at Texas A&M University's High Performance Research Computing Center.
One can approximately deduce the size and shape of the hole on the airplane according to the amount and location of the explosives, and then make the damage assessments accordingly. Our numerical results have shown that the airframe's bracing ribs can have beneficial protective effects against onboard explosion. The validation of our model and computation is done by comparing numerical results against the detonation of spherical explosives set on steel plates. Visualization of airplane bombing can be seen from video animations of the post processed supercomputer results. The associated physical phenomena will also be interpreted.
报告人简介：
Goong Chen was born in Kaohsiung, Taiwan in 1950. He received his BSc (Math) from the National Tsing Hua University in Hsinchu, Taiwan in 1972 and PhD (Math) from the University of Wisconsin at Madison in 1977. Since 1987, he has been Professor of Mathematics and Aerospace Engineering, and (since 2000) a member of the Institute for Quantum Studies, at Texas A&M University in College Station, Texas. He has research interests in many areas of applied and computational mathematics: control theory for partial differential equations (PDEs), boundary element methods and numerical solutions of PDEs, engineering mechanics, chaotic dynamics, quantum computation, chemical physics and quantum mechanics. He has written over one hundred and thirty papers, seven advanced texts/monographs, and co-edited four books. He is Editor-in-Chief of the Journal of Mathematical Analysis and Applications, and has served as the Editor-in-Chief of the Chapman & Hall/CRC Press Applied Mathematics and Nonlinear Science Series (2002- 2011), and as Associate Editor for several other editorial boards, including the SIAM Journal on Control and Optimization, the International Journal on Quantum Information, and the Electronic Journal of Differential Equations.