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Title: Method and apparatus for generating a natural crack

Abstract

A method and apparatus for generating a measurable natural crack includes forming a primary notch in the surface of a solid material. A non-sustained single pressure pulse is then generated in the vicinity of the primary notch, resulting in the formation of a shock wave which travels through the material. The shock wave creates a measurable natural crack within the material which extends from the primary notch. The natural crack formed possesses predictable geometry, location and orientation.

Inventors:
 [1];  [2];  [3];  [1]
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  1. Livermore, CA
  2. Tracy, CA
  3. Danville, CA
Issue Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
OSTI Identifier:
865040
Patent Number(s):
4453423
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
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DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; apparatus; generating; natural; crack; measurable; forming; primary; notch; surface; solid; material; non-sustained; single; pressure; pulse; generated; vicinity; resulting; formation; shock; wave; travels; creates; extends; formed; possesses; predictable; geometry; location; orientation; shock wave; solid material; natural crack; pressure pulse; single pressure; /73/29/

Citation Formats

Fulton, Fred J, Honodel, Charles A, Holman, William R, and Weingart, Richard C. Method and apparatus for generating a natural crack. United States: N. p., 1984. Web.
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Fulton, Fred J, Honodel, Charles A, Holman, William R, & Weingart, Richard C. Method and apparatus for generating a natural crack. United States.
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Fulton, Fred J, Honodel, Charles A, Holman, William R, and Weingart, Richard C. Sun . "Method and apparatus for generating a natural crack". United States. https://www.osti.gov/servlets/purl/865040.
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@article{osti_865040,
title = {Method and apparatus for generating a natural crack},
author = {Fulton, Fred J and Honodel, Charles A and Holman, William R and Weingart, Richard C},
abstractNote = {A method and apparatus for generating a measurable natural crack includes forming a primary notch in the surface of a solid material. A non-sustained single pressure pulse is then generated in the vicinity of the primary notch, resulting in the formation of a shock wave which travels through the material. The shock wave creates a measurable natural crack within the material which extends from the primary notch. The natural crack formed possesses predictable geometry, location and orientation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {1}
}
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