NASA Technical Reports Server (NTRS) 20020079134: Stress Measurement System

by: NASA Technical Reports Server (NTRS)

Publication date: 1996-01-01

Topics: NASA Technical Reports Server (NTRS), TECHNOLOGY UTILIZATION, NONDESTRUCTIVE TESTS, STRESS MEASUREMENT, AIRCRAFT STRUCTURES, AEROSPACE TECHNOLOGY TRANSFER, BRIDGES (STRUCTURES), CRACK INITIATION,

Collection: NASA_NTRS_Archive; additional_collections

Language: English

Under the Aircraft Structural Integrity program, Langley Research Center and Stress Photonics developed an infrared-based stress measurement system for use in nondestructive evaluation of materials and structures. Stress Photonics commercialized the technology in the DeltaTherm 1000 system, used to compare designs and detect cracks in structures, especially for aging aircraft and bridges. The system combines digital signal processing technology with a special infrared camera to provide instantaneous thermal images and live differential images.