Explicit Finite Element Analysis of 2024-T3/T351 Aluminum Material under Impact Loading for Airplane Engine Containment and Fragment Shielding

Abstract

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Finite element modelling of abrasive waterjet milled footprints

“…A similar problem of excessive erosion was also encountered by Anderson et al (2006). (Buyuk et al, 2009) pointed out the necessity of recalibrating the JC damage parameters to attain a better agreement between the simulation and the experimental results. Therefore the value of the JC damage parameter d 1 was increased from −0.09 (as used Lesuer (2000)) to 0.24 based on good consistency with the current experimental results as presented in Section 4.…”

“…In the case of the high velocity impact problems where erosion occurs, it is not possible to obtain better solutions by simply refining the mesh as demonstrated by Buyuk et al (2009) andLim (2003) during the FE modelling of erosive impact. To address this, a preliminary study carried within this research shows that as the mesh is refined in the fine mesh region, a continuous increase in the erosion rate (ER) occurs, as shown in Fig.…”

Blast Resistance and Damage Modelling of Fibre Metal Laminates to Blast Loads

“…However, in this study, temperature effects are ignored to reduce computational constraint, although significant thermal softening may occur during the high explosive event. Material characterisation data for Aluminium 2024-T3 have been investigated and obtained at high strain rates and large strains using the split Hopkinson pressure bar (SHPB) methods [23], as shown in Table 4. The Johnson-Cook parameters have been determined for a strain rate validity range ofε = 10 5 − 10 −5 s −1 .…”

Performance of Glare panels subjected to intense pressure pulse loading

“…In this study, temperature effects are ignored to reduce computational constraint, although significant thermal softening may occur during the initiation of the high explosive event. Material characterisation data for Aluminium 2024-T3 have been investigated and obtained at high strain rates and large strains using the split Hopkinson pressure bar (SHPB) methods (19) , as shown in Table 4. The Johnson-Cook parameters have been determined for a strain rate validity range of ε =10 5 -10 -5 s -1 .…”

“…MAT SIMPLIFIED_JOHNSON_COOK (12) was chosen which excludes the effect of thermal softening and adopts a simple, maximum strain based failure model and is 50% faster than the full Johnson-Cook implementation. Table 4 Johnson-Cook material model parameters (19) *MAT_SIMPLIFIED_JOHNSON_COOK MAT_098…”