Sridar KrishnaswamySridhar Krishnaswamy

Professor, Director - Center for Quality Engineering and Failure Prevention

Phone: (847) 491-4006
Fax: (847) 491-5227
E-mail: s-krishnaswamy@northwestern.edu

Websites:

http://www.cqe.northwestern.edu/

Professor Krishnaswamy's research interests are in intelligent structural health management of safety-critical structures.

Intelligent Structural Health Management is an emerging concept that provides an efficient methodology to minimize the possibility of catastrophic failure of safety-critical structures. ISHM involves feedback-based prediction of structural integrity. On-board diagnostic sensors provide continuous or on-demand information about the state of a structure, and the data from the sensors is incorporated into structural analyses and damage evolution models to assess the state of the structure, and to make probabilistic prognoses about the remaining lifetime. The ISHM approach requires integration of several emerging and some mature sub-fields of science and engineering:

  • structural health monitoring
  • damage and failure mechanics
  • structural and reliability analysis
  • nondestructive materials characterization.

Ongoing research activities include:

  • Photoacoustic and acoustic characterization of composites, thin films and coatings
  • Piezoelectric and fiber-optic sensors for structural health monitoring
  • Ultrasonic nonlinearity for fatigue damag