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Low-cycle fatigue life of thin-plate auxetic cellular structures made from aluminium alloy 7075-T651Tomažinčič, Dejan ...In the article, the low-cycle fatigue life durability of thin-plate auxetic cellular structures is compared with the thin-plate specimens of standard shape. Both the re-entrant auxetic cellular ... structures and the standard specimens were cut from a 2mm-thick strip of aluminium alloy 7075-T651. First, a fatigue life curve and a cyclic curve were determined for the standard specimens. A special antibuckling device was applied to prevent the bending of the specimens. The same experimental arrangement was then applied to determine the low-cycle fatigue life of auxetic structures. In the continuation, the most appropriate method was selected to calculate the fatigue life on the basis of the measured fatigue life curves. Abaqus and SIMULIA fe-safe software were applied for this purpose. The best predictions for the standard specimens were obtained with the Brown-Miller method. Finally, the selected method was applied to predict the low-cycle fatigue life of re-entrant auxetic cellular specimens.Source: Fatigue & fracture of engineering materials & structures. - ISSN 8756-758X (Vol. 42, iss. 5, May 2019, str. 1022-1036)Type of material - article, component partPublish date - 2019Language - englishCOBISS.SI-ID - 16549915
Author
Tomažinčič, Dejan |
Nečemer, Branko |
Vesenjak, Matej |
Klemenc, Jernej
Topics
aluminium alloys |
auxetic |
damage models |
low-cycle fatigue |
theoretical-experimental approach |
aluminijeve litine |
avksetičnost |
poškodbeni modeli |
malo-ciklično utrujanje |
teoretično-eksperimentalni pristop
source: Fatigue & fracture of engineering materials & structures. - ISSN 8756-758X (Vol. 42, iss. 5, May 2019, str. 1022-1036)
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Tomažinčič, Dejan | 37663 |
Nečemer, Branko | 50637 |
Vesenjak, Matej | 23463 |
Klemenc, Jernej | 16334 |
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