Date of Award

Spring 1997

Document Type

Thesis

Degree Name

Master of Science in Manufacturing Systems Engineering - (M.S.)

Department

Industrial and Manufacturing Engineering

First Advisor

George Hanna Abdou

Second Advisor

Taiming Chu

Third Advisor

Carl Wolf

Abstract

High pressure water jets are used in industry for cleaning and cutting purposes. These devices can generate pressure up to 400 MPa. As high pressure water jets become more widespread in industry, injuries will be seen with great frequency. Penetrating injuries by these devices can produce minimal external evidence of extensive soft tissue injury. To know the extent of injury, it is important to study the relationship between operating parameters of water jet and the skin layers. A computational analysis is carried out using finite element method to find the effects of water jet pressure on the skin layer. Finite element skin model is made and the analysis is carried out at different pressure. Linear and non linear static analyses are done here to study the behavior of skin layers under pressure. The results obtained from both analyses shows linear effect that is elastic behavior. The skin materials rupture before going into the plastic region. The results show that the layer of skin will start to shear at about 45 MPa of water jet pressure. The epidermis bears most of the stresses and is deformed, other layers are also deformed but do not reveal high stress concentration. High stress concentration are seen in the dermis where there are not enough collagen fibers.

Included in

Manufacturing Commons

Share

COinS