Verification of the repair effect for fatigue cracks in members of steel bridges based on thermoelastic stress measurement
| Autor: | Taku Hanai, Daiki Shiozawa, Yoshiaki Mizokami, Akira Moriyama, Takahide Sakagami, Yui Izumi, Taisei Fujimoto |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
business.industry Mechanical Engineering fungi technology industry and agriculture Structural integrity Stress measurement 02 engineering and technology Structural engineering Stress distribution 021001 nanoscience & nanotechnology Stress field 020303 mechanical engineering & transports Thermoelastic damping 0203 mechanical engineering Mechanics of Materials Nondestructive testing Thermography Forensic engineering General Materials Science 0210 nano-technology business |
| Zdroj: | Engineering Fracture Mechanics. 183:1-12 |
| ISSN: | 0013-7944 |
| DOI: | 10.1016/j.engfracmech.2017.05.024 |
| Popis: | Ageing steel bridges suffer fatigue cracks thereby necessitating immediate inspection, structural integrity evaluation or repair in the life cycle of steel bridges. We propose nondestructive evaluation techniques employing infrared thermography enabling us to remotely inspect the fatigue cracks in steel bridges and evaluate the structural integrity on the basis of thermoelastic stress measurement. This study presents a structural integrity assessment of steel bridges using remote measurement of the stress field around the fatigue cracks. We focus upon experimental results confirming reduction in the severity of the stress distribution around the fatigue cracks after the repair or reinforcement of members in steel bridges. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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