Nonlinear structural crack growth monitoring

Patent · Tue Jan 01 00:00:00 EST 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: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• 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

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