Characterisation of the Portevin-Le Châtelier effect affecting an austenitic TWIP steel based on digital image correlation

K Renard, S Ryelandt, PJ Jacques - Materials Science and Engineering: A, 2010 - Elsevier
When strained in tension, high-manganese austenitic TWIP steels achieve very high
strength and elongation before necking. They also present serrated flow within a certain …

Effect of microstructure on continuous propagation of the Portevin–Le Chatelier deformation bands

D Yuzbekova, A Mogucheva… - International Journal of …, 2017 - Elsevier
Influence of severe plastic deformation (SPD) on plastic instability associated with the
Portevin-Le Chatelier (PLC) effect was investigated in an AlMg alloy in a high strain-rate …

Experimental characterization of the intragranular strain field in columnar ice during transient creep

F Grennerat, M Montagnat, O Castelnau, P Vacher… - Acta Materialia, 2012 - Elsevier
A digital image correlation (DIC) technique has been adapted to polycrystalline ice
specimens in order to characterize the development of strain heterogeneities at an …

Crossover from continuous to discontinuous propagation in the Portevin–Le Chatelier effect

H Ait-Amokhtar, C Fressengeas - Acta Materialia, 2010 - Elsevier
The Portevin–Le Chatelier (PLC) effect in an Al–3.2% Mg alloy is investigated using velocity-
driven tensile tests at room temperature, in a strain rate range where the crossover from …

Experimental and numerical analysis of the Portevin–Le Chatelier effect in a nickel-base superalloy for turbine disks application

N Guillermin, J Besson, A Köster, L Lacourt… - International Journal of …, 2023 - Elsevier
High-pressure turbine disks are subjected to extreme mechanical and thermal loadings
throughout their lifetime. This is the reason why during the design of turboshaft engines …

Piobert–Lüders plateau and Portevin–Le Chatelier effect in an Al–Mg alloy in simple shear

J Coër, PY Manach, H Laurent, MC Oliveira… - Mechanics Research …, 2013 - Elsevier
The jerky flow in an Al–Mg alloy is studied during simple shear tests at room temperature
and various strain rates. Direct observations of the sample surface using digital image …

Kinematics of Portevin–Le Chatelier bands in simple shear

PY Manach, S Thuillier, JW Yoon, J Coër… - International Journal of …, 2014 - Elsevier
The mechanical behavior of 5000 series aluminium alloy sheets has been investigated in
simple shear, in order to highlight the influence of strain rate and temperature on the …

Experimental and numerical study of the thermo-mechanical behavior of Al bi-crystal in tension using full field measurements and micromechanical modeling

A Saai, H Louche, L Tabourot, HJ Chang - Mechanics of Materials, 2010 - Elsevier
Validation and identification of micromechanical models are very exacting and sensitive
tasks. The experimental identification process must provide the necessary data to verify that …

Prediction of fatigue crack growth in gas turbine engine blades using acoustic emission

Z Zhang, G Yang, K Hu - Sensors, 2018 - mdpi.com
Fatigue failure is the main type of failure that occurs in gas turbine engine blades and an
online monitoring method for detecting fatigue cracks in blades is urgently needed …

In-situ and real-time tests on the damage evolution and fracture of thermal barrier coatings under tension: A coupled acoustic emission and digital image correlation …

M Zhou, WB Yao, XS Yang, ZB Peng, KK Li… - Surface and Coatings …, 2014 - Elsevier
By using a coupled acoustic emission (AE) and digital image correlation (DIC) technique,
the failure behavior of air plasma sprayed thermal barrier coatings (TBCs) was investigated …