Petteri Lappalainen - Research output - VTT's Research Information Portal

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Research activity per year

5 Report
4 Conference article in proceedings
3 Chapter or book article
1 Article
More
- 1 Article in a proceedings journal

14 results

2023
Embrittlement Trend Curves and Reactor Pressure Vessel Operation in Finland
Seppänen, T., Lindqvist, S., Arffman, P. & Lappalainen, P., 1 Jun 2023, Radiation Embrittlement Trend Curves and Equations and Their Use for RPV Integrity Evaluations. Server, W. L., Brumovský, M. & Kirk, M. (eds.). American Society for Testing and Materials (ASTM), p. 259-283 25 p. (ASTM Special Technical Publication, Vol. STP 1647).
Research output: Chapter in Book/Report/Conference proceeding › Chapter or book article › Scientific › peer-review
FRACTESUS Project overview: objectives, organisation and initial findings
Sánchez, M., Cicero, S., Arroyo, B., Bonny, G., Swan, H., Lappalainen, P., Altstadt, E., Petit, T. & Obermeier, F., 2023, In: Procedia Structural Integrity. 47, p. 22-29
Research output: Contribution to journal › Article in a proceedings journal › Scientific › peer-review

Open Access
4 Citations (Scopus)
2022
Effect Of Thermal Aging On The Microstructure And Mechanical Properties Of High-Ni And Ni-Base Alloys
Huotilainen, C., Que, Z., Ge, Y., Lappalainen, P., Hytönen, N., Korhonen, R., Huotilainen, S. & Kytömöki, P., 2022, AMPP Conference Papers. Association for Materials Protection and Performance, AMPP
Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
2019

Non-destructive evaluation of material degradation of nuclear reactor pressure vessels
Rinta-aho, J., Lappalainen, P. & Leskelä, E., 2019, Baltica XI: International Conference on Life Management and Maintenance for Power Plants. VTT Technical Research Centre of Finland, 7 p.
Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Open Access
File

131 Downloads (Pure)
2016

Water purification system for the Electric Discharge Machine (EDM)
Moilanen, P., Paasila, M. & Lappalainen, P., 2016, VTT Technical Research Centre of Finland. 36 p. (VTT Research Report, Vol. VTT-R-05845-15).
Research output: Book/Report › Report
2015
Electrical resistivity response to annealing of VVER440-type weld material in irradiated, post-irradiation annealed and re-irradiated conditions
Valo, M. & Lappalainen, P., 2015, VTT Technical Research Centre of Finland. 35 p. (VTT Research Report, Vol. VTT-R-00163-15).
Research output: Book/Report › Report
Modelling heat transfer in electron beam welding
Pulkkanen, V.-M., Lappalainen, P. & Valo, M., 2015, VTT Technical Research Centre of Finland. 21 p. (Helsinki University of Technology: Systems Analysis Laboratory. A: Research Reports, Vol. VTT-R-00368-15).
Research output: Book/Report › Report
Validation of melting temperatures of temperature monitoring alloys by DSC
Lappalainen, P., Talja, R. & Valo, M., 2015, VTT Technical Research Centre of Finland. 12 p. (VTT Research Report, Vol. VTT-R-00162-15).
Research output: Book/Report › Report
2014

Supplementary tests with CRIEPI mini CT-specimens
Valo, M., Ehrnsten, U., Planman, T., Lappalainen, P. & Wallin, K., 2014, VTT Technical Research Centre of Finland. 71 p. (Helsinki University of Technology: Systems Analysis Laboratory. A: Research Reports; No. VTT-R-05628-14).
Research output: Book/Report › Report
2013

Advanced surveillance technique and embrittlement modelling (SURVIVE)
Valo, M., Lappalainen, P., Lyytikäinen, T., Lydman, J. & Paasila, M., 2013, SAFIR2014: The Finnish Research Programme on Nuclear Power Plant Safety 2011-2014: Interim Report. Espoo: VTT Technical Research Centre of Finland, p. 313-323 (VTT Technology; No. 80).
Research output: Chapter in Book/Report/Conference proceeding › Chapter or book article › Professional

Open Access
2011
Fracture Assessment of Reactor Circuit (FRAS): FRAS summary report
Karjalainen-Roikonen, P., Calonius, K., Timperi, A., Cronvall, O., Keinänen, H., Kuutti, J., Kaunisto, K., Laukkanen, A., Elers, L., Valo, M., Lappalainen, P., Planman, T. & Nevasmaa, P., 2011, SAFIR2010: The Finnish Research Programme on Safety 2007-2010: Final Report. Espoo: VTT Technical Research Centre of Finland, p. 414-429 (VTT Tiedotteita - Research Notes; No. 2571).
Research output: Chapter in Book/Report/Conference proceeding › Chapter or book article › Professional

Open Access
2010
Passive real-time submillimetre-wave imaging system utilizing antenna-coupled microbolometers for stand-off security screening applications
Luukanen, A., Grönholm, M., Lappalainen, P., Leivo, M., Rautiainen, A., Tamminen, A., Ala-Laurinaho, J., Räisänen, A., Dietlein, C. R. & Grossman, E. N., 2010, Proceedings: International Workshop on Antenna Technology, iWAT2010. IEEE Institute of Electrical and Electronic Engineers, 4 p.
Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
8 Citations (Scopus)
Passive terahertz camera for standoff security screening
Grossman, E., Dietlein, C., Ala-Laurinaho, J., Leivo, M., Grönberg, L., Grönholm, M., Lappalainen, P., Rautiainen, A., Tamminen, A. & Luukanen, A., 2010, In: Applied Optics. 49, 19, p. E106-E120
Research output: Contribution to journal › Article › Scientific › peer-review
122 Citations (Scopus)
Real-time passive terahertz imaging system for standoff concealed weapons imaging
Luukanen, A., Grönberg, L., Grönholm, M., Lappalainen, P., Leivo, M., Rautiainen, A., Tamminen, A., Ala-Laurinaho, J., Dietlein, C. R. & Grossman, E. N., 2010, Proceedings of SPIE: Passive Millimeter-Wave Imaging Technology XIII. Wikner, D. A. & Luukanen, A. R. (eds.). International Society for Optics and Photonics SPIE, 767004. (Proceedings of SPIE, Vol. 7670).
Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific
23 Citations (Scopus)