Method and apparatus for generating a natural crack

Patent · Sun Jan 01 00:00:00 EST 1984

OSTI ID:865040

Fulton, Fred J ^[1]; Honodel, Charles A ^[2]; Holman, William R ^[3]; Weingart, Richard C ^[1]

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1. Livermore, CA
2. Tracy, CA
3. Danville, CA

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.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4453423
• OSTI ID: 865040
• Country of Publication: United States
• Language: English

Related Subjects

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
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