Averaged strain energy density criterion to predict ductile failure of U-notched Al 6061-T6 plates under mixed mode loading

作者：Torabi A R^*; Berto F; Campagnolo A; Akbardoost J

来源：Theoretical and Applied Fracture Mechanics, 2017, 91: 86-93.

DOI：10.1016/j.tafmec.2017.04.010

• Ductile failure
• Averaged strain energy density (ASED)
• Equivalent material concept (EMC)
• U-notch
• Load-carrying capacity (LCC)
• Al 6061-T6

The well-known Averaged Strain Energy Density (ASED) criterion, which is basically a brittle fracture criterion, is employed in conjunction with the Equivalent Material Concept (EMC) to predict the experimental failure loads of some U-notched ductile Al 6061-T6 plates reported in the literature under mixed mode I/II loading. While the EMC-ASED criterion does not claim that it is able to predict the fracture plane, the growth path of the crack emanating from the notch border, etc.; it is shown to be successful in predicting the load-carrying capacity (LCC) of the U-notched Al 6061-T6 plates, that fail by the large-scale yielding (LSY) regime, without performing time-consuming and complex elastic-plastic analyses.

• 出版日期2017-10