کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
510737 865786 2009 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Bolt–plate contact assemblies with prestress and external loads: Solved with super element technique
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Bolt–plate contact assemblies with prestress and external loads: Solved with super element technique
چکیده انگلیسی

In dynamically loaded bolted assemblies fatigue is the designing factor. The primary quantity that controls the fatigue is the part of the external load that is transferred to the bolt, as described by the ratio between transferred load to external load. In an idealized setting this ratio can be expressed by a stiffness ratio between the plate members and the bolt. The ratio of transferred load is, however, highly dependent on the size and position of the external loading.The bolt–plate/member connection is modelled using the finite element technique. The modelling includes contact between bolt and members and between the clamped member plates. The modelling includes the prestress that is described by a single scalar value. This prestressed state is followed by an arbitrary external load case.In this paper a finite element technique with super elements is applied to solve the contact problem of the combined prestress and external load in an overall non-iterative way. The conclusions are that it is difficult to make general design rules but in most cases the standard calculation methods will underestimate the strength of the connections. However for some specific loading situations this might not be the case.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Structures - Volume 87, Issues 21–22, November 2009, Pages 1374–1383
نویسندگان
, ,