Abstract In this research the ageing of a silicone adhesive in simulated space environment is monitored through an embedded three parameter tilted fibre Bragg grating (TFBG) sensor. Here, used as between two thin cover glasses, and environmental by thermal cycles high vacuum conditions (better than 10 ?5 mbar). These operational can induce variations with respect to its original properties such...

The use of stress–strain analysis in structural design or mechanical components is critical for avoiding investigating failures. In the case complicated designs, mathematical full-field stress modeling produces imprecise predictions. Experimental can be used as a replacement modeling, but with currently available strain gauges, it cumbersome and impossible moving parts. Mechanoluminescent mater...

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METHODS: Gross anatomical studies of 20 embalmed cadavers that examined origins, insertions and significant attachments of the ITB were performed. The strain generated in the ITB by three typical stretching manoeuvres (Obers test: OBER, Hip flexion, adduction and external loading: HIP, Straight leg raise: SLR) was measured in 5 unembalmed cadavers using foil-type strain gauges. An ultrasound as...

Gold and chromium alloy fixed partial dentures of the maxillary posterior type have been studied with respect to surface strains using conditions of static loading. The two techniques used were the brittle lacquer' and electronic strain gauge2'3 methods. Brumfield4 presented work on the analysis of partial denture design using the classical beam theory. Bates5 measured dynamic strains on chromi...

The aim is to compare the strain pattern in intact and resurfaced femurs using validated third-generation composite femurs and rosette strain gauges. The rosette strain gauges were applied to an intact and a resurfaced third-generation composite femur at three sites: the narrowest part of the lateral surface of the neck, the narrowest part of the medial surface of the neck, and the medial surfa...

AIM To precisely quantify the circumferential strains created along the radicular dentin of maxillary incisors during a simulated clinical procedure of lateral compaction. METHODS Six miniature strain gauges were bonded on the roots of fourteen recently extracted maxillary central incisors that were subjected to root canal instrumentation. The strain gauges were bonded at three levels (apical...

Abstract Directional strain sensing is essential for advanced sensor applications in the field of human‐machine interfaces and healthcare. Here, angle dependent anisotropic sensitivity caused by charge carriers percolating through cross‐linked gold nanoparticle (GNP) networks studied these versatile materials are used fabrication wearable triaxial pulse gesture sensors. More specifically, respo...

In this study, we propose a force sensor using a shape-memory polymer (SMP) whose stiffness varies according to the temperature. An SMP can be deformed above its glass transition temperature (Tg) by applying a small load. A deformed SMP maintains its shape when cooled below Tg and returns to its predefined shape when subsequently heated above Tg. The reversible change in the elastic modulus bet...

Hydropower plays a key role in the actual energy market due to its fast response and regulation capacity. In that way, hydraulic turbines are increasingly demanded to work at off-design conditions, where complex flow patterns and cavitation appear, especially in Francis turbines. The draft tube cavitation surge is a hydraulic phenomenon that appears in Francis turbines below and above its Best ...