کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
254379 | 503066 | 2006 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: An automated hybrid procedure for capturing mode-jumping in postbuckling composite stiffened structures An automated hybrid procedure for capturing mode-jumping in postbuckling composite stiffened structures](/preview/png/254379.png)
This paper presents a robust finite element procedure for modelling the behaviour of postbuckling structures undergoing mode-jumping. Current non-linear implicit finite element solution schemes, found in most finite element codes, are discussed and their shortcomings highlighted. A more effective strategy is presented which combines a quasi-static and a pseudo-transient routine for modelling this behaviour. The switching between these two schemes is fully automated and therefore eliminates the need for user intervention during the solution process. The quasi-static response is modelled using the arc-length constraint while the pseudo-transient routine uses a modified explicit dynamic routine, which is more computationally efficient than standard implicit and explicit dynamic schemes. The strategies for switching between the quasi-static and pseudo-transient routines are presented.
Journal: Composite Structures - Volume 73, Issue 2, May 2006, Pages 186–195