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UID:0-415@aerospace.technion.ac.il

DTSTART;TZID=Asia/Jerusalem:20170830T163000

DTEND;TZID=Asia/Jerusalem:20170830T173000

DTSTAMP:20230530T180152Z

URL:https://aerospace.technion.ac.il/events/mixed-dimensional-modeling-of-
 time-dependent-wave-problems/

SUMMARY:Mixed-Dimensional Modeling of Time-Dependent Wave Problems
DESCRIPTION:Lecturer:Hanan Amar\n Faculty:Department of Aerospace Engineeri
 ng\n Institute:Technion – Israel Institute of Technology\n Location:Clas
 sroom 165\, ground floor\, Library\, Aerospace Eng.\n Zoom: \n Abstract: \
 n Details: \n It is common to find aerospace structural parts which behave
  in a one- or two-dimensional manner. This behaviour allows us to simplify
  the analysis\, in comparison to that which would be required for a fully 
 three-dimensional analysis\, by treating these parts as beams\, plates or 
 shells. However\, in certain cases we may not be able to reduce the dimens
 ion of the entire structure\, but only a portion of it.\nFor example\, in 
 truss and frame structures\, that are commonly found in aircraft wings\, m
 ost of the structure exhibits a beam-like behaviour. However\, around the 
 joints connecting the beams we may find a more intricate 3D stress field. 
 If we wish to capture the behaviour at the joints accurately\, we must mod
 el them as 3D objects. Yet modelling the entire structure in 3D is very co
 stly. We would like to utilize the 1D aspect of the beam-like substructure
 s to simplify the model. Other examples for the need for a mixed-dimension
 al model exist in other fields of application\, like medicine.\nLately var
 ious hybrid methods have been proposed for solving a coupled high- and low
 -dimensional problem. These methods involve a mechanism for coupling high-
  and low-dimensional models. Most of these methods have been developed and
  applied to static or steady state problems. The current work extends two 
 of these methods to  time-dependent wave problems. We will present the de
 rivation and numerical implementation of the Nitsche and Panasenko couplin
 g methods\, as well as results of numerical experiments used assess their 
 performance.
CATEGORIES:Seminars
LOCATION:Classroom 165\, ground floor\, Library\, Aerospace Eng.

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DTSTART:20170324T030000

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