ANALYSIS OF STRESS IN THE CONTACTING SEGMENTS OF THE BOOM AT MOBILE CRANE

Abstract

There are many papers defining the expressions for dimensioning the cross section of auto crane boom. The equations describing the stress are quite complex. The complexity can be considerably simplified by correction factors. They provide easy and reliable description of the stress which is relevant for dimensioning (i.e. geometrical identification of boom cross section). It is usually necessary to know only the value of the stress in the zone which is important for dimensioning without analyzing the entire stress state. The stress analysis is presented in the paper and the expression for maximum stress, which is relevant for dimensioning, is defined. Theoretical results have been verified by experiments, too.