A novel characterisation approach to reveal the mechano–chemical effects of oxidation and dynamic distension on polypropylene surgical mesh

NTH Farr, S Roman, J Schäfer, A Quade, D Lester… - RSC …, 2021 - pubs.rsc.org
Polypropylene (PP) surgical mesh, used successfully for the surgical repair of abdominal
hernias, is associated with serious clinical complications when used in the pelvic floor for …

Optical birefringence and molecular orientation of crazed fibres utilizing the phase shifting interferometric technique

TZN Sokkar, KA El-Farahaty, MA El-Bakary… - Optics & Laser …, 2017 - Elsevier
In this article, the features of the phase shifting interferometric technique were utilized to
investigate the effect of the presence of crazes in both outer and inner layers on optical …

Characterization of axially tilted fibres utilizing a single-shot interference pattern

TZN Sokkar, KA El–Farahaty, MA El–Bakary… - Optics and Lasers in …, 2017 - Elsevier
We proposed a method to solve the problem of extracting meaningful phase information for
a single-shot interference pattern taken for an axially tilted fibre sample. Conventionally such …

A modified method for accurate correlation between the craze density and the optomechanical properties of fibers using pluta microscope

TZN Sokkar, KA El‐Farahaty… - Microscopy …, 2016 - Wiley Online Library
ABSTRACT A modified method was suggested to improve the performance of the Pluta
microscope in its nonduplicated mode in the calculation of the areal craze density …

Adaptive spatial carrier frequency method for fast monitoring optical properties of fibres

TZN Sokkar, KA El-Farahaty, MA El-Bakary, EZ Omar… - Applied Physics B, 2016 - Springer
We present an extension of the adaptive spatial carrier frequency method which is proposed
for fast measuring optical properties of fibrous materials. The method can be considered as …

Non-interferometric determination of optical anisotropy in highly-oriented fibres using transport intensity equation technique

TZN Sokkar, KA El-Farahaty, MA El-Bakary… - Optics and Lasers in …, 2018 - Elsevier
The optical setup of the transport intensity equation (TIE) technique is developed to be valid
for measuring the optical properties of the highly-oriented anisotropic fibres. This …

Optical microscope: interferometric and non-interferometric optical microscopy techniques

EZ Omar - Non-Destructive Material Characterization Methods, 2024 - Elsevier
Optical microscopes and their extensions are non-destructive essential tools for
characterizing the physical properties of polymeric materials. They are extensively used in …

In situ investigation of the effect of stretching speed and annealing conditions on the crazing of as-spun IPP fibres using Pluta polarizing interference microscope

TZN Sokkar, KA El-Farahaty, FE Hanash, EZ Omar - Optik, 2016 - Elsevier
The effect of annealing conditions and stretching speed on the crazing and fracture
behaviour of thermally treated as-spun IPP fibres during stretching with constant strain rate …

Investigation of the opto-thermo-mechanical properties of antimicrobial PET/TiO2 fiber using the transport of intensity equation technique

GM Abo-Lila, TZN Sokkar, EA Seisa, EZ Omar - Applied Physics B, 2022 - Springer
The transport of intensity equation (TIE) technique is used to investigate the effect of
stretching and annealing conditions on the optical features and antimicrobial activity of …

Residual life assessment method for polymethyl methacrylate

T Wei, S Zhao, Z Gao, K Zhang, W Gou… - … Modeling in Materials …, 2020 - emerald.com
Purpose Fatigue and creep are the key factors for the failure of polymethyl methacrylate
(PMMA) in the engineering structure, so a great of quantity attention is focused on the life …