| 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 |
|
Kuutti, Juha
VTT Technical Research Centre of Finland
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2024Constraint effects on fracture toughness of ductile cast iron in the ductile regimecitations
- 2022Effect of Welding Direction and Bead Pattern in Alloy 52 / SA508 Repair Weld
- 2022Sensitivity of the Master Curve reference temperature T0 to the crack front curvaturecitations
- 2022Miniature C(T) Specimens-Pinhole Eccentricity and the Effect of Crack Opening Displacement Measurement Locationcitations
- 2021Evaluation of an Alloy 52 / Cladded Carbon Steel Repair Weld by Cold Metal Transfer
- 2021Online nonlinear ultrasound imaging of crack closure during thermal fatigue loadingcitations
- 2020Numerical assessment of the effects of microcrack interaction in AM componentscitations
- 2020A52M/SA502 Dissimilar Metal RPV Repair Weld:Evaluation of different techniques
- 2020A52M/SA502 Dissimilar Metal RPV Repair Weld
- 2020A52M/SA52 Dissimilar Metal RPV Repair Weld:Experimental Evaluation and Post-Weld Characterizationscitations
- 2020A52M/SA52 Dissimilar Metal RPV Repair Weld : Experimental Evaluation and Post-Weld Characterizationscitations
- 2018Comparison of ASME XI and BS7910 Allowable Surface Flaw Size Evaluation Procedures in Piping Componentscitations
- 2017Use of CTOD as crack driving force parameter for low-cycle thermal fatigue
- 2013Disposal canister shock absorber tests and analysis
- 2012A local remeshing procedure to simulate crack propagation in quasi-brittle materialscitations
- 2011Fracture Assessment of Reactor Circuit (FRAS):Advanced numerical fracture assessment methods
- 2010Simulation of ice crushing experiment using FE-model update technique
Places of action
| Organizations | Location | People |
|---|
document
Disposal canister shock absorber tests and analysis
Abstract
In the Finnish final disposal plan the spent fuelcanister will be transferred to an undergroundrepository at 400-450 meters below ground surface by avertical lift. This paper considers the postulatedaccident scenario where the disposal canister fallsduring transportation. In case of free fall, the 25-tondisposal canister can reach a velocity of 90 m/s beforeimpacting the shock absorber. The shock absorberis designed to consist of cohesionless granularlightweight expanded clay aggregate (LECA) material thatwill decelerate the disposal canister in a controlledmanner. By utilizing the IMPACT test facility at VTTTechnical Research Centre of Finland, laboratory scaleshock absorber tests have been carried out. A rigid scalemodel of the disposal canister was shot into a shockabsorber pipe in a horizontal setting with a realisticvelocity. A total of 21 tests have been carried out withvelocities ranging from 38 m/s to 97 m/s using disposalcanister scale models with diameters from 63 mm to 150mm. Other dimensions in the testing were scaledcorrespondingly. The aim of the experiments and numericalanalysis was to assess the behavior of LECA as shockabsorbing material and determine both the required depthof the shock absorber and loading subjected to thedisposal canister. LECA used in the tests had grain sizeof 4-10 mm. The test results show a clear trend ofpenetration distance increasing as the impact velocityincreases and some scatter. No distinctive effect of thetest scale was seen in the results.