Modeling of Falling Ball Impact Test Response on Solid, Veneer, and Traditional Engineered Wood Floorings of Several Hardwoods

Hardness is a key mechanical property of flooring materials. In this study, the performance veneer floorings (with top layer thickness 0.6 mm) was investigated by dynamic hardness tests, comparing it with those traditional engineered wood 3 and solid floorings. Two hardwoods commonly used on flooring, viz. Quercus robur L. Hymenaea courbaril L., two fast-growing hardwoods, Eucalyptus globulus Labill. grandis W. Hill ex Maiden, were tested as layers. To compare their usage properties, impact test involving steel balls three diameters five different drop heights carried out, measuring footprint diameter (FD) indentation depth (ID). The data from 4800 impacts, corresponding to 180 individual groups (4 hardwood species × ball 5 floor types) analyzed. results showed that general response in terms both FD ID better than floorings, (0.6 behavior (3.0 mm). Furthermore, for tested, which have significantly densities, similar suggesting they would be suitable valorization industry.