Title :
Permissible casting defects calculation of cast steel nodes based on fracture mechanics
Author :
Hui, Jin ; Jing, Li ; Jianhua, Mo
Author_Institution :
Key Lab. of Bridge-Struct. Eng. of the Minist. of Commun., Chongqing Jiaotong Univ., Chongqing, China
Abstract :
The fatigue of cast steel node with initial casting defects was studied by Finite Element Method (FEM) and fracture mechanics. The defects was simulated as cracks in the 3D FEM model and the stress intensity factor of crack tip was calculated. The shape factor function was fitted by the stress intensity factors of different crack length. The permissible defects size could be decided by the fracture mechanics.
Keywords :
casting; finite element analysis; fracture mechanics; steel; 3D FEM model; cast steel nodes; fatigue; finite element method; fracture mechanics; initial casting defects; permissible casting defects calculation; shape factor function; stress intensity factors; Casting; Concrete; Fatigue; Finite element methods; Laboratories; Steel; Stress; cast steel node; casting defects; fatigue; fracture mechanics;
Conference_Titel :
Electric Technology and Civil Engineering (ICETCE), 2011 International Conference on
Conference_Location :
Lushan
Print_ISBN :
978-1-4577-0289-1
DOI :
10.1109/ICETCE.2011.5776446
