Issue 30

T. Yin et alii, Frattura ed Integrità Strutturale, 30 (2014) 220-225; DOI: 10.3221/IGF-ESIS.30.28 224 ambits of the structural integrity discipline [11]). Such a high level of accuracy is certainly promising, especially in light of the fact that it was reached without the need for explicitly modelling the stress vs. strain dynamic behaviour of the tested aluminium alloy. Accordingly, if the reliability and accuracy of the proposed approach were further confirmed by considering different metallic materials, this reformulation of the TCD could allow practitioners to perform the dynamic assessment of notched ductile components by remarkably reducing the time and costs of the design process. Code d g d n r n K t F f T f F  [mm] [mm] [mm] [kN] [s] [kN/s] S1 T1 10.0 5.0 Plain 1.00 3.8 4.1 0.9268 S1 T2 10.0 5.0 Plain 1.00 4.8 0.08 60.00 S1 T3 10.0 5.0 Plain 1.00 4.1 35 0.1171 S1 T5 10.0 5.0 Plain 1.00 4.6 0.05 92.00 S1 T6 10.0 5.0 Plain 1.00 4 0.02 200.0 S1 T7 10.0 5.0 Plain 1.00 4.4 0.006 733.3 S1 T8 10.0 5.0 Plain 1.00 4.5 0.005 900.0 S1 T11 10.0 5.0 Plain 1.00 4.1 0.004 1600 Error [%] S1 T12 10.0 5.0 Plain 1.00 4.7 0.01 470.0 PM LM AM S1 T9 10.0 5.2 0.38 2.93 5.4 22 0.2455 -0.1 -2.2 4.4 S1 T10 10.0 5.2 0.38 2.93 6.7 0.004 1675 -1.4 3.0 3.9 S2 T1 10.0 5.2 0.38 2.93 6.8 0.007 971.4 1.4 5.4 6.9 S2 T2 10.0 5.2 0.38 2.93 6.7 0.007 957.1 0.0 3.9 5.3 S1 T17 10.0 5.2 1.38 1.69 4.6 29 0.1586 -1.5 -11.3 -3.0 S1 T18 10.0 5.2 1.38 1.69 6.2 0.003 2066.7 5.2 2.5 3.4 S2 T5 10.0 5.2 1.38 1.69 5.3 21 0.2524 12.2 1.2 10.5 S2 T6 10.0 5.2 1.38 1.69 5.1 16 0.3188 7.3 -3.0 5.7 S2 T7 10.0 5.2 1.38 1.69 6.7 0.007 957.1 15.9 11.8 13.8 S2 T9 10.0 5.2 1.38 1.69 6.2 0.009 688.9 8.1 3.9 6.2 S2 T10 10.0 5.2 1.38 1.69 6.9 0.007 985.7 19.3 15.1 17.1 S2 T11 10.0 5.2 1.38 1.69 4.9 11 0.4455 2.3 -7.4 0.7 S2 T12 10.0 5.2 1.38 1.69 5.2 16 0.3250 9.4 -1.1 7.7 S2 T13 10.0 5.2 1.38 1.69 6 0.007 857.1 4.1 0.2 2.2 S2 T14 10.0 5.2 1.38 1.69 5.9 0.009 655.6 3.0 -1.1 1.2 S1 T15 10.0 5.0 4.00 1.25 3.7 30 0.1233 -9.1 -16.4 -9.7 S1 T16 10.0 5.0 4.00 1.25 3.5 23 0.1522 -14.3 -21.2 -15.0 Table 1 : Summary of the generated experimental results and accuracy of the proposed re-formulation of the TCD in estimating the quasi-static/dynamic strength of the tested notched samples of Al6063-T5. C ONCLUSIONS 1) The proposed reformulation of the TCD was seen to be successful in estimating the strength of the notched specimens of Al6063-T5 we tested under both quasi-static and dynamic axial loading. 2) Thanks to its specific features, the proposed design methodology allows real notched components to be designed against dynamic loading by directly post-processing the relevant stress fields estimated via conventional linear-elastic FE models. This implies that an accurate assessment can be performed without the need for explicitly modelling the material response under dynamic loading.