DVSInstitut de SoudureTWI - The Welding Institute
Subscription     Free sample     Advertising     Contact     DVS-Publishing     Editorial Board     Editorial plan     Instructions for authors     ABC of Joining     Imprint     Data protection    

Available Volumes
2002  I   2003  I   2004  I   2005  I   2006  I   2007  I   2008  I   2009  I   2010  I   2011  I   2012  I   2013  I   2014  I  

Available Issues in  2012
1  I   2  I   3  I   4  I   5  I   6  I  

------------------------------------------

Volume  2012  I   Issue  1


 
- Advertisement -





Böhme, Wolfgang ; Memhard, Dieter ; Brand, Marcus ; Siegele, Dieter
Failure behaviour of crash-relevant welded aluminium joints

Welding and Cutting 11 (2012) [1] 42-48
Specialist Articles

Kurzfassung:
To improve the design and the assessment of MIG-welded aluminium joints under crash loading conditions, experimental tests and numerical investigations on the deformation and failure behaviour have been performed. For the experimental investigations, specimens have been cut out of the base materials AW6060 (AlMgSi) and AW7003 (AlZn6Mg0.8Zr) and their welds. For the age-hardened aluminium alloys, the weld shows a lower yield strength than the base material. Thus, failure takes place in the weld and in the region of the fusion line. The residual stresses obtained by a weld simulation were taken into account as initial conditions for a subsequent crash simulation. As a result, the influence of the welding residual stresses on the failure under crash loading is negligible. For the computational simulation of tensile and shear failure, a failure curve consisting of a combination of the Gurson model and the strain criterion of Johnson-Cook was qualified as a suitable failure model. A simplified approach based on a constant lower bound failure strain also results in a good approximation to describe the failure of the weld metal.

Click page-thumbnail to open full text (pdf):
(Subscription required!)

Page 42 Page 43 Page 44 Page 45 Page 46 Page 47 Page 48

You are not logged in
Username:
Password:

--------------------------------------------------------

Quicksearch:

--------------------------------------------------------

- Anzeige -

Page 3
Page 3

Page 4
Page 4

Page 5
Page 5

Page 6
Page 6

Page 7
Page 7

Page 8
Page 8

Page 9
Page 9

Page 10
Page 10

Page 11
Page 11

Page 12
Page 12

Page 13
Page 13

Page 14
Page 14

Page 15
Page 15

Page 16
Page 16

Page 17
Page 17

Page 18
Page 18

Page 19
Page 19

Page 20
Page 20

Page 21
Page 21

Page 22
Page 22

Page 23
Page 23

Page 24
Page 24

Page 25
Page 25

Page 26
Page 26

Page 27
Page 27

Page 28
Page 28

Page 29
Page 29

Page 30
Page 30

Page 31
Page 31

Page 32
Page 32

Page 33
Page 33

Page 34
Page 34

Page 35
Page 35

Page 36
Page 36

Page 37
Page 37

Page 38
Page 38

Page 39
Page 39

Page 40
Page 40

Page 41
Page 41

Page 42
Page 42

Page 43
Page 43

Page 44
Page 44

Page 45
Page 45

Page 46
Page 46

Page 47
Page 47

Page 48
Page 48

Page 49
Page 49

Page 50
Page 50

Page 51
Page 51

Page 52
Page 52

Page 53
Page 53

Page 54
Page 54

Page 55
Page 55

Page 56
Page 56

Page 57
Page 57

Page 58
Page 58

Page 59
Page 59

Page 60
Page 60

Page 61
Page 61

Page 62
Page 62

Page 63
Page 63

Page 64
Page 64

Page 65
Page 65

Page 66
Page 66