Nonlinear structural crack growth monitoring

Patent · 01 January 2002

OSTI ID:874785

Welch, Donald E ^[1]; Hively, Lee M ^[2]; Holdaway, Ray F ^[3]

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1. Oak Ridge, TN
2. Philadelphia, TN
3. Clinton, TN

A method and apparatus are provided for the detection, through nonlinear manipulation of data, of an indicator of imminent failure due to crack growth in structural elements. The method is a process of determining energy consumption due to crack growth and correlating the energy consumption with physical phenomena indicative of a failure event. The apparatus includes sensors for sensing physical data factors, processors or the like for computing a relationship between the physical data factors and phenomena indicative of the failure event, and apparatus for providing notification of the characteristics and extent of such phenomena.

• Research Organization: LOCKHEED MARTIN ENERGY RES COR
• DOE Contract Number: AC05-96OR22464
• Assignee: U.T. Battelle, LLC, (Oak Ridge, TN)
• Patent Number(s): US 6460012
• OSTI ID: 874785
• Country of Publication: United States
• Language: English

Related Subjects

/702/73/
apparatus
characteristics
computing
consumption
correlating
crack
data
detection
determining
due
elements
energy
event
extent
factors
failure
failure due
growth
imminent
indicative
indicator
manipulation
method
monitoring
nonlinear
notification
phenomena
physical
process
processors
provided
providing
relationship
sensing
sensors
structural
structural element