Effect of the length of basalt fibers on the shear mechanical properties of the core structure of biomimetic fully integrated honeycomb plates

Abstract

To promote the application of basalt fibers, this study investigated the effect of different fiber lengths (L f ) of short basalt fibers on the shear mechanical properties of biomimetic fully integrated honeycomb plates, which were manufactured with a short basalt fiberreinforced epoxy resin polymer composite, using a double shear experiment. The results showed that the fully integrated honeycomb plate with an L f of 6 mm had the best mechanical properties, and the shear modulus of the fully integrated honeycomb plate with an L f of 9 mm was close to that of the former. However, the shear strength and energy dissipation capacity of the 9 mm-fiber specimen were worse than those of the 6 mm-fiber specimen, and its energy dissipation capacity was even less than that of the fully integrated honeycomb plate with an L f of 3 mm. The intrinsic mechanism underlying this effect is that the thicknesses of the laminates and honeycomb walls of the fully integrated honeycomb plate are smaller than the lengths of the short fibers, and the corresponding structure is complicated. However, for short basalt fiberreinforced epoxy resin polymers, the larger the L f is, the faster the growth rate of

Study of the Heat Transfer Performance of Laminated Paper Honeycomb Panels

“…The highest percentage exceeded 80% and appeared at LHP 16 , with a single layer thickness of 60 mm. This further manifested radiation as the dominant heat transfer method not only in a single-layer honeycomb panel HP at room temperature [ 21 ] but also in an LHP. The intrinsic causes of the above phenomenon are further analyzed as follows.…”

“…In recent years, we have cooperated with manufacturers [ 18 ] to jointly develop new products and construction technologies derived from hollow floors, such as BEPs for wall insulation. It has been proven that BEPs have better mechanical properties than HPs in terms of compression [ 19 ], bending [ 20 ], and shear [ 21 ]. In previous papers [ 22 , 23 , 24 , 25 ], the thermal insulation performance of BEPs was also investigated.…”

The compressive mechanical properties of honeycomb plates and beetle elytron plates with different foam densities and height-to-thickness ratios

“…Compared with the honeycomb plate, the beetle elytron plate (BEP), characterized by a trabecular-honeycomb core structure (Figure 1(d) and (e)), which is inspired by the three-dimensional structure of the Allomyrina dichotoma beetle forewing (Figure 1(a) to (c)), 6,7 has better mechanical properties in terms of compression, 8 energy absorption, 9 bending 10 and shear. 11 Moreover, it has been confirmed that the end-trabecular beetle elytron plate (EBEP) and grid beetle elytron plate (GBEP) have similar mechanical properties but different strengthening characteristics. Therefore, these two kinds of BEPs represent new bionic sandwich structures with better mechanical properties than honeycomb plates.…”

Vibrational Characteristics of a Foam-Filled Short Basalt Fiber Reinforced Epoxy Resin Composite Beetle Elytron Plate

“…The shared mechanism of trabeculae, the synergistic mechanism of the trabecular-honeycomb structure, and the excellent mechanical properties of EBEP have been recently investigated [ 25 ]. The results proved that the mechanical properties of compression [ 26 ], energy absorption [ 27 ], bending [ 28 ], and shearing [ 29 ] of the EBEP were significantly better than those of traditional honeycomb plates. In this context, the vibrational characteristics of a 3D-printed BEP composed of aluminum were proven in a previous study [ 30 ] to be better than those of a traditional honeycomb plate.…”