PSI - Issue 42

Rogério Lopes et al. / Procedia Structural Integrity 42 (2022) 1159–1168 Rogério F. F. Lopes et al./ Structural Integrity Procedia 00 (2019) 000 – 000

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Fig. 7. a) Contour of displacement yy for v=0m/s of the impactor using DIC, in mm and b) Contour of displacement yy for v=0m/s of the impactor using FEM, in mm

Based on deformation data, it was possible to confirm that several strain gauges sustained irreversible deformation after the experimental test. With knowledge of the manufacturing material and its mechanical properties, the stress curves with respect to time for each of the unidirectional strain gauges are generated and the stress may be estimated using Hooke's law. In the Fig. 8 two strain gauges are shown, one in each of the major girders and other two placed in the B-pillar. These were retained in the elastic regime.

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d) f) Fig. 8. a) experimental and FE strain at the strain gauge BTD point, b) experimental and FE strain at the strain gauge BTE point c) BTD and BTE positions in CAD model, d) experimental and FE strain at the strain gauge LDT point, b) experimental and FE strain at the strain gauge LET point c) LDT and LET positions in CAD model e)