Results 41 to 50 of about 1,609 (144)

Localization of damage in beams using interferometric techniques [PDF]

open access: yes, 2012
Two interferometric techniques and their applications in structural damage identification are presented in this paper. Out-of-plane displacement fields of modal response are measured with a pulsed electronic speckle pattern interferometric system(ESPI).
Lopes, H.   +3 more
core  

Characterization on crack propagation of nuclear graphite under three-point bending

open access: yesNuclear Materials and Energy, 2019
The fracture properties of graphite produced in China, named as CLG, were studied by performing three-point bending tests on center-notched beams. The load-deflection (P-δ) curves and load-crack mouth opening displacement (P-CMOD) curves of the beams in ...
Yuxiang Tang, Hongniao Chen
doaj   +1 more source

Non-destructive testing of carbon reinforced plastics by means of phase retrieval

open access: yes, 2012
In this work, the SLM-based phase retrieval system will be used to inspect carbon reinforced plastics samples (CFRP) under applying a thermal load. For this purpose, the system is used to capture a sequence of 8 spatially separated recording planes ...
Agour, Mostafa   +3 more
core   +1 more source

Design and Fabrication of Holographic Optical Elements for Applications in Electronic Speckle Pattern Interferometry and Laser Doppler Vibrometry [PDF]

open access: yes, 2010
An important area of application of holographic optical elements (HOEs) is in optical and electronic speckle pattern interferometry. The design, fabrication and characterization of holographic optical elements (HOEs) for electronic speckle pattern ...
Bavigadda, Viswanath   +3 more
core   +1 more source

Study of a Flexible UAV Proprotor [PDF]

open access: yes, 2013
This paper is concerned with the evaluation of design techniques, both for the propulsive performance and for the structural behavior of a composite flexible proprotor.
Bénard, Emmanuel   +5 more
core   +2 more sources

Incremental displacement collocation method for the evaluation of tension softening curve of mortar [PDF]

open access: yes, 2012
The tension softening curve (TSC), showing the relationship between the cohesive tensile stress and crack opening displacement, is the constitutive law of the cohesive crack model.
Chen, HHN, Kwan, AKH, Su, RKL
core   +1 more source

Experimental and Numerical Investigations on Dynamic Characteristics for Piezoceramic Bimorphs [PDF]

open access: yes, 2007
Piezoceramic bimorph structures have been widely used in recent years as they combine the advantages of different materials. Two thin layers of piezoelectric ceramic are bonded together with the central layer of metal and are electrically connected in ...
Huang,Yu-Hsi, Ma, Chien-Ching
core  

Studies on bridging tractions - simultaneous bridging tractions and COD measurements [PDF]

open access: yes, 2018
The main objective of this work is to investigate the bridging tractions in a model composite using optical fiber Bragg grating (FBG) sensors written into selected reinforcing fibers. Simultaneously, the crack opening displacement (COD) is measured using
Botsis, J.   +4 more
core   +1 more source

Dynamic Sensing Performance of a Point-Wise Fiber Bragg Grating Displacement Measurement System Integrated in an Active Structural Control System

open access: yesSensors, 2011
In this work, a fiber Bragg grating (FBG) sensing system which can measure the transient response of out-of-plane point-wise displacement responses is set up on a smart cantilever beam and the feasibility of its use as a feedback sensor in an active ...
Chien-Ching Ma   +2 more
doaj   +1 more source

Application of Far Cortical Locking Technology in Periprosthetic Femoral Fracture Fixation: A Biomechanical Study [PDF]

open access: yes, 2016
© 2016 Elsevier Inc. Background Lack of fracture movement could be a potential cause of periprosthetic femoral fracture (PFF) fixation failures. This study aimed to test whether the use of distal far cortical locking screws reduces the overall stiffness ...
Fagan, Michael J.   +5 more
core   +2 more sources

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