Characterization of elastic constants of anisotropic composites in compression using digital image correlation

O Orell, J Vuorinen, J Jokinen, H Kettunen… - Composite …, 2018 - Elsevier
Experimental determination of elastic constants of anisotropic composite laminates in all
orthogonal directions is generally a complex process. In this paper a simple direct technique …

Nondestructive damage assessment in fiber reinforced composites with the pulsed ultrasonic polar scan

M Kersemans, I De Baere, J Degrieck… - Polymer Testing, 2014 - Elsevier
This study investigates the use of both amplitude and time-of-flight based pulsed ultrasonic
polar scan (P-UPS) as a sophisticated non-destructive damage sensor for fiber reinforced …

High Resolution Wavenumber Analysis (HRWA) for the mechanical characterisation of viscoelastic beams

P Margerit, A Lebée, JF Caron, X Boutillon - Journal of Sound and Vibration, 2018 - Elsevier
Abstract The High-Resolution Wavenumber Analysis (HRWA) is presented. It identifies
complex wavenumbers and amplitudes of waves composing the harmonic response of a …

Identification of the elastic properties of isotropic and orthotropic thin-plate materials with the pulsed ultrasonic polar scan

M Kersemans, A Martens, N Lammens… - Experimental …, 2014 - Springer
Already in the early 1980's, it has been conjectured that the pulsed ultrasonic polar scan (P-
UPS) provides a unique fingerprint of the underlying mechanical elasticity tensor at the …

The high-resolution wavevector analysis for the characterization of the dynamic response of composite plates

P Margerit, A Lebée, JF Caron, K Ege… - Journal of Sound and …, 2019 - Elsevier
Abstract The High Resolution Wavevector Analysis (HRWA) is presented and its application
illustrated. Extending the High Resolution Wavenumber Analysis method [1] to 2D signals, it …

Detection and localization of delaminations in thin carbon fiber reinforced composites with the ultrasonic polar scan

M Kersemans, A Martens, K Van Den Abeele… - Journal of …, 2014 - Springer
In this paper, the hybrid compliance-stiffness matrix method for simulating wave propagation
in (delaminated) multilayered media with viscoelastic anisotropy has been confronted with …

The ultrasonic polar scan for composite characterization and damage assessment: Past, present and future

M Kersemans, A Martens, J Degrieck… - Applied Sciences, 2016 - mdpi.com
In the early 1980's, the ultrasonic polar scan (UPS) technique was developed to assess the
fiber direction of composites in a nondestructive way. In spite of the recognition by several …

Company law aspects of shareholders' agreements in listed companies

P Miliauskas - 2014 - epublications.vu.lt
Abstract [eng] The dissertation analyses legal aspects of shareholders' agreements
concluded in listed companies using theoretical model provided by agency theory. The …

Damage signature of fatigued fabric reinforced plastics in the pulsed ultrasonic polar scan

M Kersemans, I De Baere, J Degrieck… - Experimental …, 2014 - Springer
This study investigates the use of both the amplitude and time-of-flight based pulsed
ultrasonic polar scan (P-UPS) for the nondestructive detection and evaluation of fatigue …

Simulation of a circular phased array for a portable ultrasonic polar scan

J Daemen, M Kersemans, A Martens… - AIP Conference …, 2018 - pubs.aip.org
The development of new composite materials, often anisotropic in nature, requires intricate
approaches to characterize these materials and to detect internal defects. The Ultrasonic …