Fatigue Testing of Wearable Sensing Technologies: Issues and Opportunities
| Autor: | Charles Freeman, Brian K. Smith, Andrea Karen Persons, F V Reuben Burch, Chartrisa LaShan Simpson, David M. Macias, John E. Ball |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Technology
Computer science Wearable sensing Wearable computer Failure data 02 engineering and technology Review 010402 general chemistry 01 natural sciences Automotive engineering cyclic testing stretch sensor General Materials Science fatigue testing cyclic softening Flexibility (engineering) lead failure Microscopy QC120-168.85 QH201-278.5 fatigue testing standards Fatigue testing 021001 nanoscience & nanotechnology Engineering (General). Civil engineering (General) Bench to bedside high-cycle fatigue 0104 chemical sciences TK1-9971 wearables Descriptive and experimental mechanics hysteresis low-cycle fatigue Low-cycle fatigue Cyclic softening Electrical engineering. Electronics. Nuclear engineering TA1-2040 0210 nano-technology |
| Zdroj: | Materials Materials, Vol 14, Iss 4070, p 4070 (2021) |
| ISSN: | 1996-1944 |
| Popis: | Standards for the fatigue testing of wearable sensing technologies are lacking. The majority of published fatigue tests for wearable sensors are performed on proof-of-concept stretch sensors fabricated from a variety of materials. Due to their flexibility and stretchability, polymers are often used in the fabrication of wearable sensors. Other materials, including textiles, carbon nanotubes, graphene, and conductive metals or inks, may be used in conjunction with polymers to fabricate wearable sensors. Depending on the combination of the materials used, the fatigue behaviors of wearable sensors can vary. Additionally, fatigue testing methodologies for the sensors also vary, with most tests focusing only on the low-cycle fatigue (LCF) regime, and few sensors are cycled until failure or runout are achieved. Fatigue life predictions of wearable sensors are also lacking. These issues make direct comparisons of wearable sensors difficult. To facilitate direct comparisons of wearable sensors and to move proof-of-concept sensors from “bench to bedside”, fatigue testing standards should be established. Further, both high-cycle fatigue (HCF) and failure data are needed to determine the appropriateness in the use, modification, development, and validation of fatigue life prediction models and to further the understanding of how cracks initiate and propagate in wearable sensing technologies. |
| Databáze: | OpenAIRE |
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