A Built-In Active Sensing Structural Diagnostic (BASSD) System for Composite Structures

Period of Performance: 12/18/1998 - 06/18/1999


Phase 1 SBIR

Recipient Firm

Leading Aeronautical Tech, Inc.
739 San Rafael Place
Stanford, CA 94305
Principal Investigator

Research Topics


It is proposed to develop a cost-effective innovative Built-in Active Sensing Structural Diagnostic (BASSD) system for monitoring the integrity and for detecting damage in composite structures, particularly the invisible impact damage. The development of the BASSD system is primarily based on the SMART layer technology which uses a built-in network of piezoelectric sensors and actuators to interrogate the condition of the structures. A Monitoring layer based on the AMART layer technology will be developed which will be made of a thin dielectric adhesive film with an embedded network of piezoelectric sensors and actuators. The monitoring layer could be surface-mounted or embedded inside composite structures. The BASSD system consists of three major components: a monitoring a smart suitcase, and application software. The smart suitcase hosts a sensor/actuator control unit as well as a laptop computer The software based on application to be implemented in the computer will be developed for the control unit to interface with the monitoring layer by a wired or by a wireless communication channel. BENEFITS: Upon completion of the development of the BASSD system, it could potentially provide the following advantages over to traditional NDE inspection techniques: *Convenience and Automation *Real Time Inspection *Reduction of Labor *Reduction of Down Time *Improvement of Reliability *Improvement of combat readiness