Analysis of existing studies on wood under impact and ballistic loads

Wood is one of the oldest building materials. However, with the advent of the industrial revolution, metal and reinforced concrete structures have almost completely displaced wood from the market of basic building materials. At the same time, wood is widely used in the manufacture of furniture, decoration, floors, auxiliary structures, etc., and this applies to all spheres of human life and everyday life. A separate niche is occupied by wood asa material for fortifications, as the most accessible. Studies of the ballistic characteristics of wood are most relevant in forensics, due to the fact that bulletsfired in urban conditions very often hit wooden objects [1].The war unleashed by the Russian Federation in Ukraine forces engineers to look for the most rational materials for the construction of buildings forboth civilian and military purposes. And in this case, wood can be a competitive material along with concrete and steel, given the fairly good ability of woodto absorb energy. Certain types of wood are considered impact-resistant, so beech is used for the manufacture of hammer heads [3]. In addition to solidwood, there are quite a large number of wood-based materials, such as: glued wood, cross-laminated timber, glued veneer lumber and many others.These materials are already widely used in the construction of both low-rise and multi-story buildings. The properties of these materials for the perceptionof vertical and horizontal loads have been actively studied since the 1960s. However, the characteristics of impact strength and ballistic properties ofthese materials have hardly been studied. This paper considers the state of modern research on the ballistic properties of wood and materials based on it with the prospect of further research and use in engineering protection structures.