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Modeling of the stress-strain relationship for specimens made of S355J0 steel subjected to bending block loading with mean load

Authors :
R. Pawliczek
CT. Lachowicz
Source :
Frattura ed Integrità Strutturale, Vol 11, Iss 42, Pp 30-39 (2017)
Publication Year :
2017
Publisher :
Gruppo Italiano Frattura, 2017.

Abstract

The paper presents results of calculation for modelling of the stressstrain relationship in the case of block loads with mean load value. A model, based on the stable hysteresis loops, was assumed and modified to use for block loading analysis. For stress history calculation, the proposed model and two other constitutive models were used. Results of fatigue test of specimens made of S355J0 steel subjected to bending block loading with mean load value are presented and used to verify the proposed model. In the tests, the mean load was increased and decreased in subsequent blocks. The changes of strain recorded during the tests shown in the paper indicate a different behavior of the material. Damage accumulation degree for block sequence was used to compare the results of calculations. It was shown, that stress history parameters (stress amplitude and mean stress value in this case) are similar for all investigated models

Details

Language :
English
ISSN :
19718993
Volume :
11
Issue :
42
Database :
Directory of Open Access Journals
Journal :
Frattura ed Integrità Strutturale
Publication Type :
Academic Journal
Accession number :
edsdoj.2162d6c3a2d1431dbecb6877cf499ea8
Document Type :
article
Full Text :
https://doi.org/10.3221/IGF-ESIS.42.4