Random multiaxial fatigue: A comparative analysis among selected frequency and time domain fatigue evaluation methods

•We analyse multiaxial fatigue.•We compare time domain classical criteria with their translation into frequency domain.•We demonstrate the goodness of the frequency domain approach also in multiaxial stress state conditions. Fatigue analysis of mechanical components subjected to random loads has bee...

Full description

Saved in:
Bibliographic Details
Published in:International journal of fatigue 2015-05, Vol.74, p.107-118
Main Authors: Braccesi, C., Cianetti, F., Lori, G., Pioli, D.
Format: Article
Language:English
Subjects:
Automotive components
Chassis
Damage
Fatigue
Fatigue (materials)
Frequency domain approach
Frequency domains
Mathematical analysis
Mechanical components
Multiaxial stress state
Random loads
Time domain
Translations
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:•We analyse multiaxial fatigue.•We compare time domain classical criteria with their translation into frequency domain.•We demonstrate the goodness of the frequency domain approach also in multiaxial stress state conditions. Fatigue analysis of mechanical components subjected to random loads has been recently upgraded through several developments of calculation procedures, with the scope to support the designer within the loading condition numerical simulation. Under such scenario, the frequency domain approach is characterized by interesting features, which support its adoption in alternative or in conjunction with the classic time-domain approach, especially when the frequency domain is applied for the individuation of the component critical locations. The major goal of this paper consists of an overview about the strength and weaknesses of frequency approach with respect to the time domain one by comparing the reference time domain methods with their frequency domain translation. A significant test case development will be shown, representing a classic automotive one (chassis validation). Promising results of the frequency method application will be presented, encouraging its adoption on large scale.
ISSN:0142-1123
1879-3452
DOI:10.1016/j.ijfatigue.2015.01.003