Journal of Applied and Computational Mechanics
Stress Mode Superposition for a Priori Detection of Highly Stressed Areas: Mode Normalisation and Loading Influence
Document Type : Research Paper
Authors
Technical University Berlin, Institute of Mechanics, TU-Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany
Abstract
From the economic and technical point of view, the reduction of development periods and required resources represent a considerable benefit. For the reduction of numerical effort and processed data in numerical stress analysis, the present paper is focused onto the investigation of an efficient method for the a priori detection of a structural component’s highly stressed areas. Based on the theory of stress mode superposition and the frequency domain solution of the decoupled equations of motion, an analytically consistent approach for a priori mode superposition is presented. In this context, the influence of multiaxial loading and mode normalisation is investigated. Validation is performed on a simplified industrial model of a twist-beam rear axle.
Keywords
- Durability analysis
- fatigue hot spot
- dynamic stress analysis
- high stress prediction
- computational efficiency
Main Subjects
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