Mechanical Eng. Dep. discuss a Ph.D. dissertation
Mechanical Eng. Dep. discuss a Ph.D. dissertation
Mechanical Eng. Dep. at UOT discussed a Ph.D. dissertation taged:-
(Design and Analysis of the Ballistic Resistance of the Biomimetic Body Armor)
The dissertation of the student, Muhannad H. Musa Al-Awsi, majoring in Applied Mechanics, aimed to study the ballistic resistance of a human shield inspired by the protection system of the armadillo, consists of hexagonal pieces linked flexibly to each other, as well as the protection system for fish, which are scales, which is characterized by the presence of overlapping among them, which it gives flexibility and strength at the same time. The study followed a new methodology, which is to be inspired by the protection systems in nature, but with the isolation of the negative characteristics of those systems.
The process of manufacturing the shield was done by making a preliminary model on which preliminary tests are carried out to ensure the characteristics of this structure, and then a specific type of adhesive was selected compared to other known types in order to glue the layers of the shield together, and in the end the ballistic tests were conducted on the final model manufactured for this type of armor.
Due to the multi-layers of this shield, the researcher performed a dynamic analysis of each layer of the shield and calculated the value of the absorbed energy for each layer. The special results of the analysis of the shield layers led to the selection of multiple layers represented from the back of the shield with a layer of aluminum and then a layer of rubber followed by two layers of steel and finally a layer of ballistic fibers with epoxy composite materials.
The researcher concluded the possibility of combining high flexibility with hardness for this shield through the self-locking feature, where the shield turns from a flexible state to a solid state after the shock, in addition to the possibility of resisting the threat of multiple strikes as well as the sharp shock behind the shield, which leads to great damage to the human body. The creation of this type of armor has contributed to bridging the gap between flexible and hard armor, to be the beginning of a new generation of body armors.
The researcher recommended following the same methodology of this research to manufacture new types of armor and also recommended changing the type of releases used in the research. In addition to changing the shapes of the pieces used in the manufacture of the shield layers and the materials used in manufacturing.
The discussion committee consisted of:-
- Dr. Mohsen Jaber / the head.
- Dr. Mohsen A. Abdul-Hussein / member.
- Dr. Sadeq H. Bakhi / member.
- Prof. Dr. Muthanna H. Saadoon / member.
- Prof. Dr. Mayada Sh. Abed / member.
- Prof. Dr. Mohsen N. Hamza / supervisor.
