Material Properties of Sutured Chicken
Skin during Uniaxial Tension
Name: Roberto Muñoz
Class: BE 210
This experiment hypothesizes that when sutured chicken skin
is under a tensile load, the ultimate strength and Young’s modulus of a chicken
skin sample sutured with a vertical mattress will be higher than that of a
chicken skin sample sutured with an interrupted stitch. If a sutured sample exhibits a higher Young’s
modulus and ultimate strength, the suture technique used is considered superior
due to its higher performance and tolerance of a tensile load.
This experiment aims to collect accurate data of the
sutured chicken skin samples to investigate the material properties of the two
different suturing techniques. Once data
is collected, force vs. deformation graphs of the samples will be created, and
mathematically manipulated into stress vs. strain graphs. The ultimate strength is the highest peak of
the stress vs. strain graph, and is the stress at which the sample
ruptures. Young’s modulus is stress
divided by strain, and is therefore the slope of the linear portion of the
stress vs. strain graph.
The proposed objectives of this experiment include learning experimental techniques of the Instron mechanical testing machine. In order to do so, experimental trial runs will be performed prior to the chicken skin suture experiment to become accustomed to the machine. As in the original experiment, load samples of foam onto the Instron and apply different strain rates