Abstract

A cloud-based fatigue analysis and life prediction tool is presented. Users around the globe may access it via Internet by means of multiple platforms such as desktop and laptop computers, tablets and/or smart-phones. It is an intuitive educational software, aimed also to assist designers in the pre-prototyping stage in fatigue life estimation for smooth or notched parts subjected to constant amplitude, block loading, and spectrum loading histories. For spectrum amplitude loading a dedicated spectrum software package is provided, which is essential for a potential clean-up and/or desired modifications of a raw spectrum data. Subsequently, a rainflow method is utilized and the corresponding hysteresis loops at the notch-root or critical “hot spot” location are determined and plotted. For notched components, an interactive Neuber’s master curve is utilized and discussed. It is shown, that the Neubers’s master curve is only material dependent and is applicable for both monotonic and cyclic loading situations.

Highlights

  • Fatigue damage occurs in materials when subjected to variable amplitude stresses that are below the ultimate tensile strength, or even yield strength of the material [1]

  • In the global and highly competitive market, the Research & Development (R&D) departments are mostly afforded by relatively large organizations

  • Smaller organizations rather seldom have R&D departments but they may have a periodic need for fatigue/durability analysis

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Summary

Introduction

Fatigue damage occurs in materials when subjected to variable amplitude stresses that are below the ultimate tensile strength, or even yield strength of the material [1]. Research & Development (R&D) departments employ highly trained engineers to perform fatigue analysis on components before and during a prototype development. This involves extensive time and resources to create new designs. In the global and highly competitive market, the R&D departments are mostly afforded by relatively large organizations These R&D departments routinely acquire dedicated fatigue/durability software, which are accompanied often with relatively expensive annual license fees.

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