[HTML][HTML] Mechanical properties for long fibre reinforced fused deposition manufactured composites

JG Díaz-Rodríguez, AD Pertúz-Comas… - Composites Part B …, 2021 - Elsevier
In this work, we analyse the results of the reported mechanical properties for a particular
kind of continuous fibre-reinforced thermoplastic composites (CFRTPC) manufactured by …

An improved strain-life model based on the Walker equation to describe tensile and compressive mean stress effects

MA Meggiolaro, JTP de Castro - International Journal of Fatigue, 2022 - Elsevier
Strain-life models that include Walker-like products can reproduce the higher mean stress
effects in fatigue crack initiation observed in high-strength materials. These models are able …

[HTML][HTML] Flexural fatigue in a polymer matrix composite material reinforced with continuous Kevlar fibers fabricated by additive manufacturing

AD Pertuz-Comas, JG Díaz, OJ Meneses-Duran… - Polymers, 2022 - mdpi.com
Fatigue bending tests, under controlled displacement, were performed on a polymer matrix
composite material reinforced with continuous Kevlar fibers. The samples were fabricated …

[HTML][HTML] Impact Strength for 3D-Printed PA6 Polymer Composites under Temperature Changes

JG Díaz-Rodríguez, AD Pertuz-Comas… - … of Manufacturing and …, 2023 - mdpi.com
This paper shows how temperature influences impact energy for continuous fiber additively
manufactured (AM) polymer matrix composites. AM composites were fabricated with a nylon …

A J-integral approach using digital image correlation for evaluating stress intensity factors in fatigue cracks with closure effects

GLG Gonzáles, JAO González, JTP Castro… - Theoretical and Applied …, 2017 - Elsevier
Digital image correlation (DIC) techniques are used to obtain the stress intensity factor (SIF)
via experimental J-integral evaluations in an AISI 4340 steel disk-shaped compact-tension …

[HTML][HTML] Strain-Based Fatigue Experimental Study on Ti–6Al–4V Alloy Manufactured by Electron Beam Melting

AD Pertuz-Comas, OA González-Estrada… - … of Manufacturing and …, 2023 - mdpi.com
Additive manufacturing (AM) by electron beam melting (EBM) is a technique used to
manufacture parts by melting powder metal layer-by-layer with an electron beam in a high …

Stress concentration issues in unidirectional laminates

LL Vignoli, JTP de Castro, MA Meggiolaro - Journal of the Brazilian …, 2019 - Springer
This paper analytically studies how elliptical holes affect the resistance of unidirectional
laminate plates. Although local stress and strain concentration effects induced by notches …

Plastic stress concentration effects in fatigue strength

M Liu, AC de Oliveira Miranda, MA Antunes… - International Journal of …, 2023 - Elsevier
Elastoplastic (EP) stress gradient factors (SGF) ahead of notch tips are used to evaluate the
actual notch effects in fatigue strength due to their tolerance to non-propagating short cracks …

A deviatoric tensile-based critical plane model to predict peak/mean normal stress effects in multiaxial fatigue

MA Meggiolaro, JTP de Castro - International Journal of Fatigue, 2022 - Elsevier
This work aims to improve the modeling of peak/mean normal stress effects on multiaxial
fatigue lives, applying a deviatoric strain-life model based on the critical plane approach to …

Static axial tension or compression stress effects on shear cracks initiating under cyclic torsion loads in multiaxial fatigue tests

MA Meggiolaro, JTP de Castro, H Wu - International Journal of Fatigue, 2024 - Elsevier
This work proposes models that can better fit and explain apparently contradictory mean
stress effects observed when superimposing axial tension or compression loads on cyclic …