| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Baere, Ives De
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2023Fatigue behaviour of thermoplastic glass/polypropylene composite cross-ply laminates : an experimental study with in-situ damage observations and numerical validationcitations
- 2023Experimental and numerical fatigue damage characterization in multidirectional thermoplastic glass/polypropylene laminates based on in-situ damage observationscitations
- 2023Relation between ASTM E606 specimen geometry and misalignment in strain-controlled fatigue testingcitations
- 2022Experimental and numerical damage characterization of glass/polypropylene multidirectional laminates under quasi-static loading conditioncitations
- 2021Long-term stiffness prediction of particle filled polymers by dynamic mechanical analysis : frequency sweep versus creep methodcitations
- 2021Multi scale digital image correlation for automatic edge detection of ply cracks in composite laminates under quasi static and fatigue loading
- 2020Influencing parameters on measurement accuracy in dynamic mechanical analysis of thermoplastic polymers and their compositescitations
- 2020Dynamic Curing Agents for Amine-Hardened Epoxy Vitrimers with Short (Re)processing Timescitations
- 2017Electrospun nanofibers for highly toughened fibre reinforced polymer composite laminates
- 2017Improved fatigue delamination behaviour of composite laminates with electrospun thermoplastic nanofibrous interleaves using the Central Cut-Ply methodcitations
- 2016Damage-resistant composites using electrospun nanofibers: a multiscale analysis of the toughening mechanismscitations
- 2016TOWARDS DAMAGE RESISTANT COMPOSITES USING ELECTROSPUN NANOFIBERS: A MULTISCALE ANALYSIS OF THE TOUGHENING MECHANISMS
- 2016Interlaminar toughening of resin transfer molded laminates by electrospun polycaprolactone structures : effect of the interleave morphologycitations
- 2016Increasing the damage resistance of composites by interleaving them with electrospun nanofibrous veils
- 2015Ultrasonic polar scan imaging of fatigued fiber reinforced composites
- 2015Using a polyester binder for the interlaminar toughening of glass/epoxy composite laminates
- 2014Damage Signature of Fatigued Fabric Reinforced Plastics in the Pulsed Ultrasonic Polar Scan
- 2013Modifying the crack growth in a glass fiber reinforced epoxy by adding polyamide 6 nanofibers
- 2012The influence of polyamide 6 nanofibres on the mechanical properties of glass fibre/epoxy composites
- 2007Strain monitoring in thermoplastic composites with optical fiber sensors: embedding process, visualization with micro-tomography, and fatigue results
Places of action
| Organizations | Location | People |
|---|
article
Relation between ASTM E606 specimen geometry and misalignment in strain-controlled fatigue testing
Abstract
In strain-controlled fatigue testing, a conventional extensometer is usually used to measure the average strain between its two blades. However, the actual strain distribution in the gauge section cannot be revealed by the extensometer. To measure this distribution during strain-controlled fatigue testing of 304 stainless steel, stereo Digital Image Correlation (stereo-DIC) was used in this study. Three different geometries with two of them satisfying ASTM standard E606/E606M-12 were tested in strain-controlled fatigue testing with two representative strain amplitudes of +/- 1.0% and +/- 1.5% on a properly aligned testing machine. At both strain amplitudes, the two geometries in line with ASTM standard E606/E606M-12 exhibit evident nonuniform strain distribution under compression already from the very first cycle while the geometry proposed by the authors (not according to the ASTM standard E606/E606M-12) has better uniformity in axial strain distribution.Next, a novel fixture is designed to monitor the misalignment of the specimens in the fatigue testing. Benefiting from the novel fixture and the stereo-DIC technique, not only the deformation in the gauge section of the specimen can be captured but also the misalignment between both ends of the specimen can be extracted by post-processing. The measured misalignment has been further used as boundary conditions in simulating the mechanical response of those three geometries under cyclic loading. Numerical simulation has successfully reproduced the nonuniform strain distribution under compression, which validates the stereo-DIC measurements. It suggests that while even following the ASTM standard E606/E606M-12, uniformity in strain distribution under compression cannot be ensured and thus might render the constitutive laws calibrated from strain-controlled fatigue testing invalid, since uniform stress and strain across the gauge section of the specimens were falsely assumed.