Results 21 to 30 of about 151,662 (292)

Strip-Type Embeddable Shape Sensor Based on Fiber Optics for In Situ Composite Consolidation Monitoring

open access: yesSensors, 2022
Carbon fibers and resin used in manufacturing carbon fiber-reinforced plastic composite structures flow before the resin solidifies, resulting in disrupted fiber orientation and non-uniform thickness. This process, known as consolidation, is critical for
Shu Minakuchi, Shoma Niwa, Nobuo Takeda
doaj   +1 more source

Variable Thickness Strain Pre-Extrapolation for the Inverse Finite Element Method

open access: yesSensors, 2023
The inverse Finite Element Method (iFEM) has recently gained much popularity within the Structural Health Monitoring (SHM) field since, given sparse strain measurements, it reconstructs the displacement field of any beam or shell structure independently ...
Dario Poloni   +3 more
doaj   +1 more source

Robotic Materials Transformable Between Elasticity and Plasticity

open access: yesAdvanced Science, 2023
Robotic materials, with coupled sensing, actuation, computation, and communication, have attracted increasing attention because they are able to not only tune their conventional passive mechanical property via geometrical transformation or material phase
Xinyuan Wang   +2 more
doaj   +1 more source

Full-Field Strain Reconstruction Using Uniaxial Strain Measurements: Application to Damage Detection

open access: yesApplied Sciences, 2021
This work investigates the inverse problem of reconstructing the continuous displacement field of a structure using a spatially distributed set of discrete uniaxial strain data. The proposed technique is based on the inverse Finite Element Method (iFEM),
Rinto Roy   +3 more
doaj   +1 more source

Shape-sensing by self-sensing of shape memory alloy instruments for minimal invasive surgery

open access: yesat - Automatisierungstechnik, 2023
Abstract Shape memory alloy-based flexible instruments have potential for enhancing the safety in minimally invasive surgery compared to passive rigid devices. We developed a data-driven polynomial model to estimate deflection of a 2D bending actuator using electrical resistance.
Nikola Fischer   +2 more
openaire   +3 more sources

Application of Inverse Finite Element Method to Shape Sensing of Curved Beams

open access: yesSensors, 2020
Curved beam, plate, and shell finite elements are commonly used in the finite element modeling of a wide range of civil and mechanical engineering structures.
Pierclaudio Savino   +3 more
doaj   +1 more source

Shape sensing of optical fiber Bragg gratings based on deep learning

open access: yesMachine Learning: Science and Technology, 2023
Continuum robots in robot-assisted minimally invasive surgeries provide adequate access to target anatomies that are not directly reachable through small incisions.
Samaneh Manavi Roodsari   +6 more
doaj   +1 more source

Sensing the shape of canine responses to cancer [PDF]

open access: yesProceedings of the 12th International Conference on Advances in Computer Entertainment Technology, 2015
We conducted a short study investigating the pressure patterns produced by cancer detection dogs via a canine-centered interface while searching samples of amyl acetate. We advance previous work by providing further insights into the potential of the approach for supporting and partly automating the practice of cancer detection with dogs.
Olivia Johnston-Wilder   +5 more
openaire   +1 more source

A smoothed iFEM approach for efficient shape-sensing applications: numerical and experimental validation on composite structures [PDF]

open access: yes, 2020
A smoothed inverse finite element method (iFEM(s)) is developed by coupling the inverse finite element method (iFEM) and the smoothing element analysis (SEA) for real-time reconstruction of displacement field utilizing a network of discrete strain-sensor
Emami Tabrizi, I.   +9 more
core   +1 more source

Organ curvature sensing using pneumatically attachable flexible rails in robotic-assisted laparoscopic surgery

open access: yesFrontiers in Robotics and AI, 2023
In robotic-assisted partial nephrectomy, surgeons remove a part of a kidney often due to the presence of a mass. A drop-in ultrasound probe paired to a surgical robot is deployed to execute multiple swipes over the kidney surface to localise the mass and
A. McDonald-Bowyer   +6 more
doaj   +1 more source

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