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Damage evolution analysis of rock under Uniaxial compression and Brazilian splitting based on discrete element method [PDF]

open access: yesE3S Web of Conferences, 2020
In order to better analyze the mechanical behavior of rock in uniaxial compression and Brazilian splitting, numerical model was established according to laboratory test by PFC2D particle flow program, and the simulation results were compared with the ...
De-kang Li   +4 more
doaj   +1 more source

Influence of Composite Thickness on Ultrasonic Guided Wave Propagation for Damage Detection

open access: yesSensors, 2022
In this paper, the propagation properties of ultrasonic guided waves (UGWs) in different-thickness composites (i.e., 2, 4 and 9 mm) were critically assessed, and their effectiveness for damage detections and localisations under varying temperatures was ...
Tianyi Feng   +2 more
doaj   +1 more source

Active Health Monitoring of Thick Composite Structures by Embedded and Surface-Mounted Piezo Diagnostic Layer

open access: yesSensors, 2020
An effective approach for an embedded piezo diagnostic layer into thick composite material is presented. The effectiveness of the approach is assessed in comparison to the surface-mounted layer.
Tianyi Feng   +2 more
doaj   +1 more source

Effectiveness analysis of impact location algorithm for composite reinforced structures

open access: yesHangkong gongcheng jinzhan, 2023
With the large-scale application of composite materials in aircraft structures, the threat of visually invisible damage such as internal delamination of composite materials caused by impact from foreign objects is increasing,therefore, impact event ...
ZHANG Yang, YANG Yu, QI Ge, ZHANG Sheng
doaj   +1 more source

Smart Patch for Structural Health Monitoring of Composite Repair

open access: yesApplied Sciences, 2022
The bondline integrity of a repair patch to the parent composite laminate is considered the most important factor in the repair design. A smart repair patch is proposed here to allow for real-time ultrasonic guided wave monitoring of repaired composites.
Tianyi Feng, M. H. Ferri Aliabadi
doaj   +1 more source

Design and Shape Monitoring of a Morphing Wing Trailing Edge

open access: yesAerospace, 2023
The morphing wing trailing edge is an attractive aviation structure due to its shape-adaptive ability, which can effectively improve the aerodynamic performance of an aircraft throughout the whole flight.
Xintong Shi   +5 more
doaj   +1 more source

Review: Thermal data acquisition for 3D cracks characterization and experiment [PDF]

open access: yesE3S Web of Conferences
3D crack detection are essential in civil infrastructure since is one of a major challenges for material and structural integrity inspections. This study considers the importance of using thermal data as a non-destructive method to analyze crack ...
Moshayedi Ata Jahangir   +5 more
doaj   +1 more source

Influence of Composite Thickness on Ultrasonic Guided Wave Propagation for Damage Detection Using Embedded PZT Transducers

open access: yesApplied Sciences, 2023
This paper describes a study that focuses on assessing the influence of composites with different thicknesses (2 mm, 4 mm, and 9 mm) on embedded ultrasonic guided waves (UGWs) under varying temperatures.
Tianyi Feng, M. H. Ferri Aliabadi
doaj   +1 more source

A Structured Review of Robotic Arm Systems for Intelligent 3D Printing: Architectures, Control, and Defect Detection [PDF]

open access: yesE3S Web of Conferences
This article presents a structured review of robotic arm systems developed for intelligent 3D printing applications. The reviewed articles are analyzed in terms of hardware and software architecture, adaptive control strategies, defect detection ...
Moshayedi Ata Jahangir   +4 more
doaj   +1 more source

Mechanic-Electric-Thermal Directly Coupling Simulation Method of Lamb Wave under Temperature Effect

open access: yesSensors, 2022
Lamb Wave (LW)-based structural health monitoring method is promising, but its main obstacle is damage assessment in varying environments. LW simulation based on piezoelectric transducers (referred to as PZTs) is an efficient and low-cost method.
Xiaofei Yang   +4 more
doaj   +1 more source

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