Class: BE210
Group: T3
Members:
Abstract:
The ability of a material and the body to withstand high speed impacts are a part of daily life and activities. High speed impact resistance is especially relevant in situations or activities that require protective apparatus for the body. The capability of the material to hold up under high speed impact and to repeatedly endure these blows is very important in body protection applications. This experiment will focus on simple wooden materials and the magnitude of high-speed impact energy needed to cause failure. The wooden materials will be subject to three-point bending using the impact pendulum apparatus to the test geometric and material properties of wood.Geometrically, we used wood of different composition, shape, cross-sectional area, and orientation, and measured the fracture energies. Materially, the focus was on the effect of an adhesive on the properties of wood. The fracture energies of wood stacked with adhesive and wood stacked without adhesive were compared to observe the effects of adhesive on the wood. Lastly, we saturated wood with glue to test what effect adhesive had as a material enhancer.
Precise knowledge of how much force a material can withstand in a high-speed impact before failure is essential in engineering. Many of the mentioned methods relate specifically to wooden structural entities, but the protocol used to carry out this experiment can be extended to an array of biomedical materials. Applications can further be extended from protective material to that used in vivo in high impact situations. Examples include implanted prosthetics such as the hip, jaw, and various limbs that must be able to withstand rigorous daily application (walking, eating, exercising, etc).