Load induced inhomogeneous plastic deformations in welded aluminium joints
Load induced inhomogeneous plastic deformations in welded aluminium joints
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铝焊接接头中载荷引起的不均匀塑性变形
DOI:
10.1007/s40194-014-0136-9
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发表时间:
2014
影响因子:
2.1
通讯作者:
Dilger
中科院分区:
文献类型:
--
作者:
Workowski;Nitschke-Pagel;Dilger
In this work, the influence of varying heat input related to different welding processes (gas tungsten arc welding (GTAW), gas metal arc welding (GMAW) and electron beam) on the structure and property of the weld near heat-affected zone was investigated using a cold-formed and a precipitation-hardened aluminium alloy. Multiple tensile tests on welded samples were performed in order to comprehend the correlation between heat-induced local softening and dissipation of precipitations and the local elastic and plastic deformation behaviour under tensile loading. During these testings, the transient deformation was measured using an optical 3D deformation measuring system based on grey-scale pattern recognition. Additionally, material characterizations, such as two-dimensional hardness measurements using the instrumented indentation test, were carried out. Both aluminium alloys showed a different strain distribution under tensile loading. In addition, finite element (FE) models were developed to describe the plastic deformation behaviour. In finely meshed models, the distribution of the local yield strength was set corresponding to measurements using instrumented indentation. That way, the differences between models which include a softening area and those that do not could be shown.
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DOI:
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发表时间:
1995
期刊:
影响因子:
--
作者:
E. Zschech;G. Neye;H. Berek
通讯作者:
H. Berek
DOI:
--
发表时间:
1996
期刊:
影响因子:
--
作者:
L. A. Guitterez;G. Neye;E. Zschech
通讯作者:
E. Zschech
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
N. Sotirov;O. Kessler;F. Hoffmann;P. Mayr;H. Zoch
通讯作者:
H. Zoch
DOI:
--
发表时间:
1994
期刊:
影响因子:
--
作者:
A. Umgeher;H. Cerjak
通讯作者:
H. Cerjak