Reliability-based structural analysis of a bucket wheel excavator's load-bearing steel structure

Structural analysis of large structures such as bucket wheel excavators (BWE) are generally performed using the finite element and assessed according to portion material's yielding limit. Consequently, a structure is evaluated just by maximum stress at specific location. In order address whole structural response object, this paper introduces reliability-based evaluation presented on case study BWE SchRs 630. Although reliability has been explored in literature, most research was based data obtained from failure systems structure, over years. Nevertheless, investigation dividing pure system mapping analyzing zones BWE. Finite method randomized stresses (i.e., D – demand structure) categorized independent variables modeled probability density function. The same criterion yield strength structure's material C capacity structure). Furthermore, distribution itself industry's practice meaning that mean value be reduced when used for assessments. Therefore, margin function analyzed equation: M = D. through introduction index stresses. Such could enable comparison between corresponding similar terms their more holistic manner.