Structural Health Monitoring System for Remote Inspection of Material Failure
| Autor: | Toshiki Yamasaki, Mitsuhiro Okayasu |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Computer science business.industry Mechanical Engineering Process (computing) Structural engineering Accelerometer 01 natural sciences Piezoelectricity Transducer Mechanics of Materials visual_art 0103 physical sciences visual_art.visual_art_medium Material failure theory Ceramic Structural health monitoring business 010301 acoustics Strain gauge |
| Zdroj: | Journal of Nondestructive Evaluation. 38 |
| ISSN: | 1573-4862 0195-9298 |
| DOI: | 10.1007/s10921-019-0592-7 |
| Popis: | A new structural health monitoring (SHM) system is proposed for inspecting the failure characteristics of engineering materials, which are monitored remotely. This system is controlled using electrical devices with wireless networking system. A PZT ceramic transducer, an accelerometer and a strain gauge are used to understand the failure characteristics. These sensors are attached to the test sample and reveal its static and dynamic strain behaviour, i.e., information on the material failure (crack generation) and related strains. It is also designed that a dummy plate with a PZT material is attached to the test sample. The dummy plate is designed to fracture earlier than the test sample during the loading process, whereupon the SHM system is triggered via the piezoelectric effect. A compact prototype SHM system is created to evaluate the effectiveness of our system. The failure characteristics are monitored well using the prototype SHM system, which might be able to predict the lifetime of the test sample, i.e., the SHM system reveals the critical strain value and crack growth rate just before the final failure of the test samples. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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