摘要:
本文为 FEMFAT 5.0 基于 BS 7608 标准的焊缝疲劳建模指导文件,系统给出各类焊接接头的有限元建模规范与材料编号映射。文档覆盖对接焊、T 型焊、十字焊、角焊、搭接焊及空心型材对接焊,区分全熔透与非全熔透、单面 / 双面、有无焊缝端部、打磨 / 未打磨等工况,明确对应 FAT 等级(C‑G、F2 等)与 MAT 材料编号。采用薄壳单元建模,规定焊缝节点标记规则、等效材料号对应关系、焊趾与焊根疲劳细节分类。直接对接英国 BS 7608 焊缝疲劳评定体系,为焊接结构疲劳仿真提供标准化建模与参数选取依据。


Legend:
Gridpoints without special meaning ... (Shell-) Elements without orientation by...
and without Material-ID MATxxx are flexible in orientation.
Welding-Seam-Nodes, which have to be marked with Cxxx,
to be recognized by FEMFAT WELD look like...
Possible Colours of Weld-Seam-Nodes :
C100 ... Welding seam
C101 ... End of welding seam not welded around
C102 ... End of welding seam is welded around
C103 ... Combined weld seam node
C104 ... Combined node =weldseam end not welded around
C105 ... Combined node =weldseam end is welded around C106 ... Start of weld seam not welded around
C107 ... Start of weld seam welded around
C108 ... Combined node =weldseam start not welded around
C109 ... Combined node =weldseam start is welded around







Weld Type: T-WELD, FULL PENETRATION
Seam Shape: Double Sided, no Ends
Detail Category Perpendicular F
Detail Category Parallel C
Detail Category Weld End F

Weld Type: T-WELD, FULL PENETRATION
Seam Shape: Single Sided, no Ends
Detail Category Perpendicular F
Detail Category Parallel C
Detail Category Weld End F

Weld Type: T-WELD, FULL PENETRATION
Seam Shape: Double Sided
Detail Category Perpendicular F
Detail Category Parallel D
Detail Category Weld End F
2D Modelling:
Element type : THIN SHELL (linear or parabolic)
Element material number : MAT219 - MAT224
Equivalent MAT number :

Weld Type: T-WELD, FULL PENETRATION
Seam Shape: Single Sided
Detail Category Perpendicular F
Detail Category Parallel D
Detail Category Weld End F

Weld Type: T-WELD, FULL PENETRATION
Seam Shape: Close to Edge
Detail Category Perpendicular G
Detail Category Parallel D
Detail Category Weld End G

Weld Type: T-WELD WITHOUT FULL
PENETRATION
Seam Shape: Double Sided, no Ends
Detail Cat. Perpend. Toe F2, Root W
Detail Category Parallel C
Detail Category Weld End F2

Weld Type: T-WELD WITHOUT FULL
PENETRATION
Seam Shape: Double Sided, no Ends
Detail Cat. Perpend. Toe G, Root W
Detail Category Parallel C
Detail Category Weld End G

Weld Type: T-WELD WITHOUT FULL
PENETRATION
Seam Shape: Double Sided
Detail Cat. Perpend. Toe F2, Root W
Detail Category Parallel D
Detail Category Weld End F2

详细内容请见附件
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