Hot spot (IIW), Haibach and CAB methods for stress evaluation welded structures with FEA | PrePoMax
Автор: Andreas Baer Engineering
Загружено: 2024-12-08
Просмотров: 2879
The Hot spot method is most popular tool to defining weld in FEA. The weld geometry is modeled with a 45° chamfer.
Because of singularities at the weld transition, the hot spot stress is described using two or three stress values at specific reference points.
A simplification of the hot spot method is provided by Haibach's method. He suggests that the stresses are evaluated between 2-3 mm before the weld transition.
And the CAB method was developed at the University of Dortmund, in Germany - by the Chemical Apparats Construction working group.
The weld is replaced by a radius.
Table of Contents:
00:17 Hot spot (IIW), Haibach and CAB methods introduction
01:20 Hot Spots method - Types of hot spots
01:33 Hot Spots method - Extrapolation
02:00 Example: Welding joint - dimensions and load case
02:17 Hot Spots method - Recommendations for Hot spot type a)
02:44 CAD preparation
03:20 FEM simulation with PrePoMax (Hot spot, Haibach and CAB methods)
08:47 Results overview (Element types HEX20, TET10 and Element sizes 8, 4, 2mm)
#Hotspot #Haibach #CAB #PrePoMax
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