Additive manufacturing of miniature marine structures for crashworthiness verification: A numerical revision

Abstract This work presents a revision of the structural similarity technique developed for experimental modeling marine structures subjected to collision, grounding or similar catastrophic events via miniature models with drastic scale reduction. involved basically inclusion combined collapse modes predict mechanical behavior members and redefinition flow stress range. The revised was validated through numerical simulations nine large-scale structures’ experiments found in literature here presented form study cases. Each case evaluates accumulated effects reduction, thickness distortion material model as part technique. In general, reasonable-to-good correspondence observed between force absorbed energy responses obtained from reference their once brought same dimensional scale. Discrepancies were quantified by evaluating normalized root mean square error. By these means, most cases errors below 12.5% terms response 4.5% response. On other hand, lower agreement encountered when reproducing strongly ruled progressive buckling crack initiation/propagation together severe reduction scales. cases, better results are achieved implementing more accurate failure moderating