Abstract
The authors investigate the fracture toughness properties of the ductile medium-strength aluminium alloys AlZn4,5Mg1, AlMg4,5Mn and AlMgSi1 weldments using the methods of linear-elastic and elastic-plastic fracture mechanics. Properties are compared for three material zones: unaffected parent metal, heat-affected zone, and weld metal. In some cases there is a marked difference between the fracture toughness values obtained by different methods. Only J-integral analysis gave reliable values showing the satisfactory fracture toughness behaviour of the alloys investigated.
| Original language | English |
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| Pages (from-to) | e184-e186 |
| Journal | Welding and Cutting |
| Volume | 36 |
| Issue number | 11 |
| State | Published - Nov 1984 |