MATEC Web Conf.
Volume 165, 201812th International Fatigue Congress (FATIGUE 2018)
|Number of page(s)||8|
|Section||Fatigue of Structures / Vibrations / in Service Fatigue Failures|
|Published online||25 May 2018|
Introduction to the new FKM guideline which considers nonlinear material behaviour
Materials Mechanics Group, Technische Universität Darmstadt, D-64285 Darmstadt, Germany
* Corresponding author: firstname.lastname@example.org
In 2018 the German Research Association of Mechanical Engineering (FKM) will present a new guideline for calculating the fatigue crack initiation life of structures and components .
The user of this guideline
… is able to calculate the fatigue life for crack initiation for structures of steel, cast steel and aluminium alloy
… has to perform an elastic FE-calculation and gets the quality of an elastic-plastic calculation
… is able to determine the cyclic material parameters and the damage parameter Wöhler curve by the ultimate tensile strength Rm
… is able to calculate the fatigue life in HCF and LCF for constant and variable amplitude loading
This paper presents the algorithms of the new guideline, gives an overview about the mechanical background and discusses the results for specimens of steel and aluminium alloys. It also shows results comparing the new to the current FKM guideline for a given steel structure.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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