Process for the predictive determination in the precritical regi

Details Process for the predictive determination in the precritical regi Process for the predictive determination in the precritical regi

1998-04-02

1999-10-19

Noori, Max

Measuring and testing

Vibration

By mechanical waves

73801, G01N 2900

Patent

active

059692529

ABSTRACT:
A process for the predictive determination in the pre-critical range of the load at rupture of a structure, comprising subjecting the structure to a stress of the same type as the load and for a time according to a predetermined law, whilst recording the acoustical activity generated by the resulting damage, until a predetermined stress threshold is reached. A correlation is maintained between the registered acoustic emission and the relation ##EQU1## in which: ##EQU2## is the variation of acoustic energy generated by the damage, t is time,

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patent: 5014556 (1991-05-01), Dunegan
patent: 5036708 (1991-08-01), Urban et al.
patent: 5554810 (1996-09-01), Anifrani et al.

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