Premium
Analysis of different fatigue damage accumulation theories and damage parameters based on experiments with the steel HC340LA
Author(s) -
Palma V.,
Tomasella A.,
Frendo F.,
Melz T.,
Sonsino C. M.
Publication year - 2016
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.201600589
Subject(s) - damage mechanics , materials science , physics , thermodynamics , finite element method
Different theories for the fatigue life estimation under variable amplitude loading were analysed and compared based on experimental test of specimens of the steel HC340LA. Some of the most representative models and damage parameters were selected: The parameter P SWT ; the parameter P J , based on fracture mechanics of short cracks; the non‐linear‐continuous‐damage (NLCD) model, based on continuum damage mechanics and the energy‐based damage theory from Ellyin. Each method was illustrated and discussed also basing on the experimental results obtained with specimens of the steel HC340LA in as‐received state and with specimens of the same material after the process of linear flow splitting. The use of the parameter of Smith‐Watson Topper seemed to be the most suitable for the evaluation of fatigue life for HC340LA.