Resumo

MONZON MONRABAL, Leidy Laura et al. Simulation of Response to Impact on Guava (Psidiumguajava L), using the Finite Element Method. Rev Cie Téc Agr [online]. 2019, vol.28, n.4  Epub 01-Dez-2019. ISSN 2071-0054.

The simulation of the behavior of guava fruits (Psidiumguajava L) Red Dwarf variety EEA 1-23 subjected to impact loads, using the Finite Element Method (FEM), arises from the need to evaluate the possibility of using this method of simulation as non-destructive technology for the prediction of mechanical damage.Guava fruits of the variety under study were harvested in two stages of maturity (green-made and ripened) and subjected to experimentation with the purpose of studying the effect of the efforts on the tissue when they are subjected to impact damage. At the same time, the impact process was simulated through the FEM, comparing the results with those obtained experimentally.The results showed high potentialities of the FEM for the simulation of damages in impacted guava on concrete and on wood with an accuracy of 85% to 98% for fruits in green-ripened state and from 72% to 81% for ripe fruits.The simulation runs with finite element tools showed that, for mature fruits subjected to a fall height of 0.5 and 1 m, respectively, on the surfaces under study, the effort in the area of impact of the fruit exceeded tothe elastic limit of its tissues, which resulted in the order of 40 kPa.

Palavras-chave : physical-mechanical properties; damages; impact; fruits.

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