Open AccessResearch on determining the state of stress by the finite element method in rehabilitation the welded structure
Author(s) -
Dan Niṭoi,
Claudiu Babiş,
Oana Roxana Chivu,
S C Petriceanu,
Andrei Dimitrescu,
A I Tăpîrdea
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1182/1/012054
Subject(s) - welding , finite element method , structural engineering , fillet (mechanics) , stress (linguistics) , internal forces , realization (probability) , tension (geology) , internal stress , engineering , computer science , mechanical engineering , materials science , mathematics , metallurgy , composite material , ultimate tensile strength , philosophy , linguistics , statistics
The study of stress is a very important problem especially in the case of welded structures. Very often the main causes of their failure are represented by the overlap of the stresses during operation with the remaining ones during the welding process. The article presents in the first part the experimental activity that regarding the realization of some fillet welded joints remedied by two processes that aim at reducing the internal stress. In the second part of the article, starting from the experimental part presented, a model was made by the finite element method. Based on it the different states of tension resulted in the initial structure as well as in the rehabilitated ones were simulated.