Troy C Stratton
Engineers in Perry, UT
License number
Utah 175467-2202
Issued Date
Aug 5, 1993
Expiration Date
Dec 31, 2004
Category
Engineer/Land Surveyor
Type
Professional Engineer
Address
Address
Perry, UT
Professional information
Method And Apparatus For Testing Surface Characteristics Of A Material
US Patent:
7040143, May 9, 2006
Filed:
Aug 28, 2003
Appl. No.:
10/651311
Inventors:
David L. Johnson - Clinton UT, US
Karl D. Kersker - Pleasant View UT, US
David E. Richardson - Brigham City UT, US
Troy C. Stratton - Brigham City UT, US
Karl D. Kersker - Pleasant View UT, US
David E. Richardson - Brigham City UT, US
Troy C. Stratton - Brigham City UT, US
Assignee:
Alliant Techsystems Inc. - Edina MN
International Classification:
G01M 3/34
US Classification:
73 493
Abstract:
A method, apparatus and system for testing characteristics of a material sample is provided. The system includes an apparatus configured to house the material test sample while defining a sealed volume against a surface of the material test sample. A source of pressurized fluid is in communication with, and configured to pressurize, the sealed volume. A load applying apparatus is configured to apply a defined load to the material sample while the sealed volume is monitored for leakage of the pressurized fluid. Thus, the inducement of surface defects such as microcracking and crazing may be detected and their effects analyzed for a given material. The material test samples may include laminar structures formed of, for example, carbon cloth phenolic, glass cloth phenolic, silica cloth phenolic materials or carbon-carbon materials. In one embodiment the system may be configured to analyze the material test sample while an across-ply loading is applied thereto.