Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Development of a portable laser shearography system for crack detection in bridges
Laser digital shearography is a nondestructive optical method for detecting fine cracks (<10 microns) which has been applied for field inspection in a number of industries including automotive and aerospace. Under a Phase I SBIR grant from the Department of Transportation, a system for specific use in civil engineering is being developed. The adaptations include a rugged low cost laser and CCD imager and a vacuum system for mounting the instrument on a structure. Automated image analysis is being developed to identify cracks in the shearography image and then to calculate parameters such crack mouth opening displacement (CMOD), crack length and orientation. Calibration of the system involves the use of concrete prisms that have been treated with the Duggan cycle to induce cracking.
Development of a portable laser shearography system for crack detection in bridges
Laser digital shearography is a nondestructive optical method for detecting fine cracks (<10 microns) which has been applied for field inspection in a number of industries including automotive and aerospace. Under a Phase I SBIR grant from the Department of Transportation, a system for specific use in civil engineering is being developed. The adaptations include a rugged low cost laser and CCD imager and a vacuum system for mounting the instrument on a structure. Automated image analysis is being developed to identify cracks in the shearography image and then to calculate parameters such crack mouth opening displacement (CMOD), crack length and orientation. Calibration of the system involves the use of concrete prisms that have been treated with the Duggan cycle to induce cracking.
Development of a portable laser shearography system for crack detection in bridges
Entwicklung eines transportablen Laser-Scherographiesystems zur Rissbestimmung in Brücken
Livingston, R.A. (Autor:in) / Ceesay, J. (Autor:in) / Amden, A.M. (Autor:in) / Newman, J.W. (Autor:in)
2006
7 Seiten, 6 Bilder, 4 Quellen
Aufsatz (Konferenz)
Datenträger
Englisch
Developing a portable crack evaluation tool based on shearography
| Tema Archiv | 1996
Developing a Portable Crack Evaluation Tool Based on Shearography
| British Library Conference Proceedings | 1996
| British Library Online Contents | 2006
Laser shearography for detection of fine cracks in concrete and masonry
| Tema Archiv | 2006
LASER SHEAROGRAPHY FOR DETECTION OF FINE CRACKS IN CONCRETE AND MASONRY
| British Library Conference Proceedings | 2006