@ARTICLE{Zhu_H._Mechanizm_2016, author={Zhu, H.}, number={No 4 / I}, journal={Archives of Civil Engineering}, pages={153-169}, howpublished={online}, year={2016}, publisher={WARSAW UNIVERSITY OF TECHNOLOGY FACULTY OF CIVIL ENGINEERING and COMMITTEE FOR CIVIL ENGINEERING POLISH ACADEMY OF SCIENCES}, abstract={This study was carried out on the background of Sutong Bridge project based on fracture mechanics, aiming at analyzing the growth mechanism of fatigue cracks of a bridge under the load of vehicles. Stress intensity factor (SIF) can be calculated by various methods. Three steel plates with different kinds of cracks were taken as the samples in this study. With the combination of finite element analysis software ABAQUS and the J integral method, SIF values of the samples were calculated. After that, the extended finite element method in the simulation of fatigue crack growth was introduced, and the simulation of crack growth paths under different external loads was analyzed. At last, we took a partial model from the Sutong Bridge and supposed its two dangerous parts already had fine cracks; then simulative vehicle load was added onto the U-rib to predict crack growth paths using the extended finite element method.}, type={Artykuły / Articles}, title={Mechanizm rozwoju pęknięć zmęczeniowych stalowych konstrukcji mostów}, title={Mechanism of fatigue crack growth of bridge steel structures}, URL={http://journals.pan.pl/Content/103287/PDF-MASTER/10%20Mechanism%20of%20Fatigue%20Crack%20Growth%20of%20Bridge%20Steel%20Structures.pdf}, keywords={czynnik intensywności naprężenia, rozszerzona metoda elementów skończonych, symulacja rozwoju pęknięć zmęczeniowych, most, Stress intensity factor, extended finite element method, simulation of fatigue crack growth, bridge}, }