Development and Comparison of High Order Toroidal Finite Elements for Calculating Disk Springs

Title data

Wehmann, Christoph ; Rieg, Frank:
Development and Comparison of High Order Toroidal Finite Elements for Calculating Disk Springs.
In: Scharff, Peter (ed.): Innovation in mechanical engineering - shaping the future : 12 - 16 September 2011 ; proceedings. - Ilmenau , 2011

Official URL:

Abstract in another language

The present manuscript deals with the development and
the application of toroidal finite elements. These finite
elements belong to the class of curvilinear elements
and, therefore, a special element formulation is required.
This means to express stress, strain, and displacement
in curvilinear coordinates. Here, an 8-node quadrilateral
element is developed which is described by an isoparametric
interpolation. The development of the governing
equations is one main topic of this contribution.
Another main topic is to evaluate the quality and
efficiency of these elements with respect to the calculation
of disc springs. In this context, calculations
with toroidal elements are checked against experimental
data which consists of load-deflection-curves. In addition,
the effects of friction and differences to the exact
rectangular cross section are considered. With the help
of Riks procedure, characteristic curves with negative
spring rates are obtained.

Further data

Item Type:	Article in a book
Refereed:	No
Keywords:	Berechnung; FEA; Federn; Toroidal finite elements; curvilinear coordinates; covariant derivatives; disc springs; geometrical nonlinearities
Institutions of the University:	Faculties > Faculty of Engineering Science > Chair Engineering Design and CAD Faculties > Faculty of Engineering Science > Former Professors > Chair Engineering Design and CAD - Univ.-Prof. Dr.-Ing. Frank Rieg Faculties Faculties > Faculty of Engineering Science Faculties > Faculty of Engineering Science > Former Professors
Result of work at the UBT:	Yes
DDC Subjects:	600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited:	16 Mar 2016 08:21
Last Modified:	16 Mar 2016 08:21
URI:	https://eref.uni-bayreuth.de/id/eprint/31750