Class: BE210
Group: 101_A5
Members:

Staci Hou
Altan Kaynatma
Omid Motabar
Samhitha Udupa

Powerpoint Presentation
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The primary objective of this experiment is to determine the effects on fracture force of the surrogate chicken bone when varying the thickness of the rubber (surrogate skin).  We hypothesize that the force required for failure will increase with increased rubber thickness. When covered with rubber, the Instron will have to exert an initial force to push through the rubber material before it reaches the bone. This leads to the assumption that increasing the thickness will then create a greater cushioning effect on the bone. A side objective of this experiment is to observe how varying the loading rate will affect the fracture force of the chicken bone surrogate. Fracture can occur at different loading rates, but it is unknown exactly how this factor contributes to the effect on failure force. It is hypothesized that varying the loading rate will significantly affect the bone fracture force. Failure energy increases when loading rate is increased considerably , yet it cannot be concluded that force will increase as well, given the formula that energy is equal to force multiplied by displacement. It is not known how fracture displacement is affected when the loading rate changes.