Masters Theses

Author

Ying Chai

Abstract

"Terrorist bomb attacks and threats are on the rise all over the world. The glass structures of exterior window panels may become a debris hazard to building occupants when high explosives, for example, a terrorist vehicle bomb or body bomb, are detonated outside of a building. It is much more hazardous in body bomb case than in other types of terrorist attacks because the attack could happen in close proximity of the buildings. The dynamic response of glass structures subjected to small blast load at a short distance, however, has not fully understood. To address this issue, a 3-D, nonlinear, dynamic finite element model has been developed in this work to analyze the stress in a monolithic glass panel subjected to small blast load at a short distance. In this study, the small blast load at a short distance is modeled as a spherical blast wave. The effects of standoff distance, TNT charge weight, and overall thickness of glass panel on the dynamic response have also been investigated. To study the failure probability of the monolithic glass structure subjected to spherical blast load, two-parameter Weibull distribution based on the cumulative damage theory is adopted to describe the cumulative probability of the glass panel failure. The damage probability of the monolithic glass panel is then predicted. It was found that the maximum principal stress at the top surface is important and can not be neglected for the cases with small blast load at a short distance. The damage probability should be evaluated both at the bottom surface and top surface"--Abstract, page iii.

Advisor(s)

Dharani, Lokeswarappa R.

Committee Member(s)

Chandrashekhara, K.
Dwilewicz, Roman

Department(s)

Mechanical and Aerospace Engineering

Degree Name

M.S. in Mechanical Engineering

Publisher

University of Missouri--Rolla

Publication Date

Fall 2006

Pagination

ix, 59 pages

Note about bibliography

Includes bibliographical references (pages 56-58).

Rights

© 2006 Ying Chai, All rights reserved.

Document Type

Thesis - Restricted Access

File Type

text

Language

English

Subject Headings

Blast effect
Detonation waves
Fracture mechanics
Glass -- Fracture

Thesis Number

T 9081

Print OCLC #

123895593

Link to Catalog Record

Electronic access to the full-text of this document is restricted to Missouri S&T users. Otherwise, request this publication directly from Missouri S&T Library or contact your local library.

http://merlin.lib.umsystem.edu/record=b5847864~S5

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