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Micro cracks are usually formed in composite components under librating or friction load. New method with technology of self-healing microcapsules is put forward in this paper. In the crack's extending, the stress is concentrated at the crack end, where the microcapsule is designed to be located. When the stress goes through the microcapsules and causes them to break, the self-healing liquid runs...
This paper gives a review of acoustic and ultrasonic optical fiber sensors (OFSs). The review covers optical fiber sensing methods for detecting dynamic strain signals, including general sound and acoustic signals, high-frequency signals, i.e., ultrasonic/ultrasound, and other signals such as acoustic emissions, and impact induced dynamic strain. Several optical fiber sensing methods are included,...
Decreasing the length of thermoelectric (TE) module legs results in a significant increase in power density, both for cooling applications and electricity generation. However, this reduction also results in a significant increase of mechanical stress in the legs materials. Thus, it is important to implement an effective method to characterize the mechanical properties, such as mechanical spectroscopy,...
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