Zastosowanie metody elementów skończonych w budowie pojazdów

The paper presented here represents a review of the subject and points out the most interesting effects of the method and some of its applications in vehicle construction. In Sec.2 we present a 7th degree of freedom bar element which allows for significant simplification of calculations and increased accuracy in comparison with the classical 6th degree of freedom element. The numerical calculations relating to stress have been verified experimentally. For these comparisons it appears that the error obtained does not exceed 18%. In later section of the paper we discuss problems related to the calculation of critical loads for non uni-coherent layer car bodies and energy absorbing car bumpers. These calculation methods are based on a triaxial hyperbolic core displacement state