Research output

Research output per year 2004 2017 2022 2022

• 13 Conference article in proceedings
• 7 Chapter or book article
• 6 Article
• 5 Report
• 2 More
  • 1 Conference abstract in proceedings
  • 1 Conference article

Research output per year

Research output per year

Search results

• 2022

  Bending damage of reinforced concrete slabs subjected to soft missile impact, Part I: Resent tests on influence of inclined impact

  Vepsä, A., Darraba, A., Fedoroff, A., Heckötter, C., Sawada, S., Schneeberger, C. & Tarallo, F., Jul 2022, Transactions, SMiRT-26 : Structural Mechanics in Reactor Technology. International Association for Structural Mechanics in Reactor Technology IASMiRT, 10 p.

  Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific

  Open Access

  • Inclination Angle 100%
  • Impact Test 50%
  • Reinforced Concrete Slab 50%
  • Target Response 50%
  • Impact Tests 50%

• Historical review of impact test carried out at VTT

  Vepsä, A., Calonius, K., Fedoroff, A. & Saarenheimo, A., Jul 2022, Transactions, SMiRT-26: Structural Mechanics in Reactor Technology. International Association for Structural Mechanics in Reactor Technology IASMiRT, 10 p.

  Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific

  Open Access

  • Testing 100%
  • Research Project 25%
  • Multinationals 25%
  • Historical Review 25%
  • Attack 25%

• Impact testing in VTT

  Fedoroff, A., Calonius, K., Vepsä, A. & Saarenheimo, A., Jul 2022, Transactions, SMiRT-26: Structural Mechanics in Reactor Technology. International Association for Structural Mechanics in Reactor Technology IASMiRT, 9 p.

  Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific

  Open Access

  • Impact Testing 100%
  • Impact Test 100%
  • Nuclear Power Plant 100%
  • Test Facilities 100%
  • Research 100%

• Punching failure of reinforced concrete slabs subjected to hard missile impact: Part II, Recent tests and analyses on inclined impact

  Calonius, K., Saarenheimo, A., Fedoroff, A. & Vepsä, A., Jul 2022, Transactions, SMiRT-26: Structural Mechanics in Reactor Technology. International Association for Structural Mechanics in Reactor Technology IASMiRT, 10 p.

  Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific

  Open Access

  • Structural Behavior 100%
  • Reinforced Concrete Slab 66%
  • Simulation 66%
  • Inclined Impact 66%
  • Slab 66%

• Punching failure of reinforced concrete slabs subjected to hard missile impact: Part I, Recent test on influence of slab thickness and shear reinforcement

  Vepsä, A., Heckötter, C., Darraba, A., Fedoroff, A., Sawada, S., Schneeberger, C. & Tarallo, F., Jul 2022, Transactions, SMiRT-26: Structural Mechanics in Reactor Technology. International Association for Structural Mechanics in Reactor Technology IASMiRT, 10 p.

  Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific

  Open Access

  • Reinforced Concrete Slab 100%
  • Punching 100%
  • Shear Reinforcement 100%
  • Slab Thickness 100%
  • Impact Test 50%

• Punching Failure of Reinforced Concrete Slabs Subjected to Hard Missile Impact: Part IV, Numerical studies with the CDP model in ABAQUS and assessments with semi empirical methods

  Saarenheimo, A., Calonius, K., Fedoroff, A., Tuomala, M. & Vepsä, A., 2022, Transactions, SMiRT-26: Structural Mechanics in Reactor Technology. International Association for Structural Mechanics in Reactor Technology IASMiRT, 10 p.

  Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific

  Open Access

• Test program and numerical studies on reinforced concrete slabs impacted by liquid-filled missiles

  Heckötter, C., Vepsä, A. & Sievers, J., Jul 2022, Transactions, SMiRT-26: Structural Mechanics in Reactor Technology. International Association for Structural Mechanics in Reactor Technology IASMiRT, 10 p.

  Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific

  Open Access

  • Reinforced Concrete Structure 100%
  • Reinforced Concrete Slab 100%
  • Missile 100%
  • Test Result 50%
  • Technical Research Centre 50%
• 2017

  Experimental and numerical methods for external event assessment improving safety (ERNEST)

  Vepsä, A., Calonius, K., Fedoroff, A., Fülöp, L., Jussila, V., Saarenheimo, A., Varis, P., Fälth, B., Lund, B. & Tuomala, M., 2017, SAFIR2018 - The Finnish Research Programme on Nuclear Power Plant Safety 2015-2018: Interim Report. Hämäläinen, J. & Suolanen, V. (eds.). VTT Technical Research Centre of Finland, p. 89-103 (VTT Technology, Vol. 294).

  Research output: Chapter in Book/Report/Conference proceeding › Chapter or book article › Professional

• Experimental and numerical studies on vibration propagation

  Saarenheimo, A., Calonius, K., Fedoroff, A., Tuomala, M. & Vepsä, A., 2017, 24th International Conference on Structural Mechanics in Reactor Technology 2017 (SMiRT 24). International Association for Structural Mechanics in Reactor Technology IASMiRT, Vol. 3. p. 1760-1769 (Transactions of the International conference on structural mechanics in reactor technology, Vol. 24).

  Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

  Open Access

• Impact testing of reinforced concrete slabs for combined shear punching and bending behaviour

  Vepsä, A., 2017, VTT Technical Research Centre of Finland. 63 p. (VTT Research Report, Vol. VTT-R-00267-17).

  Research output: Book/Report › Report

• Numerical sensitivity studies on vibration propagation and damping

  Saarenheimo, A., Calonius, K., Fedoroff, A., Tuomala, M. & Vepsä, A., 2017, 24th International Conference on Structural Mechanics in Reactor Technology 2017 (SMiRT 24). International Association for Structural Mechanics in Reactor Technology IASMiRT, Vol. 3. p. 1770-1779 (Transactions of the International conference on structural mechanics in reactor technology, Vol. 24).

  Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

  Open Access

• Soft impact testing of a wall-floor-wall reinforced concrete structure

  Vepsä, A., Calonius, K., Saarenheimo, A., Aatola, S. & Halonen, M., 1 Jan 2017, In: Nuclear Engineering and Design. 311, p. 86-103

  Research output: Contribution to journal › Article › Scientific › peer-review

  • Reinforced Concrete Structure 100%
  • Buildings 50%
  • Validation 50%
  • Vibration 50%
  • Finite Element Modeling 50%
  12 Citations (Scopus)
• 2015

  Experimental characterisation of sprays resulting from impacts of liquid-containing projectiles

  Hostikka, S., Silde, A., Sikanen, T., Vepsä, A., Paajanen, A. & Honkanen, M., 2015, In: Nuclear Engineering and Design. 295, p. 388-402

  Research output: Contribution to journal › Article › Scientific › peer-review

  • Sprayer 100%
  • Impact 57%
  • Behavior 57%
  • Water 28%
  • Liquid 28%
  10 Citations (Scopus)

• Impact testing of a wall-floor-wall reinforced concrete structure

  Vepsä, A., Aatola, S., Calonius, K. & Halonen, M., 2015.

  Research output: Contribution to conference › Conference article › Scientific

  • Impact Test 100%
  • Impact Tests 100%
  • Vibration 80%
  • Impact 80%
  • Wall 80%

• Testing and modelling of phenomena arising in an aircraft impact against concrete structures

  Vepsä, A., Calonius, K. & Saarenheimo, A., 2015, In: ATS Ydintekniikka. 44, 2, p. 25-27

  Research output: Contribution to journal › Article › Professional

  Open Access

  • Impact 100%
  • Nuclear Power Plant 33%
  • Plant 33%
  • Building 33%
  • Datum 33%
• 2014

  Experimental and numerical studies on impact loaded reinforced concrete structures

  Saarenheimo, A., Calonius, K., Vepsä, A. & Tuomala, M., 2014, Proceedings of NSCM-27: The 27th Nordic Seminar on Computational Mechanics. Stockholm: KTH Royal Institute of Technology, 5

  Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Scientific

• Impact Testing of reinforced Concrete Slabs

  Vepsä, A. & Hakola, I., 2014, Papers from XIII Nordic concrete recearch symposium. The Nordic Concrete Federation (NCF), p. 123-126 (Nordic Concrete Research, Vol. 50).

  Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

  • Finland 100%
  • Impact Testing 100%
  • Reinforced Concrete Slab 100%
  • Nuclear Power Plant 50%
  • Numerical Model 50%
• 2013

  Impact 2014 (IMPACT2014) and structural mechanics analyses of soft and hard impacts (SMASH)

  Hakola, I., Saarenheimo, A., Vepsä, A., Calonius, K., Hostikka, S., Kuutti, J., Silde, A., Sikanen, T. & Tuomala, M., 2013, SAFIR2014.:The Finnish Research Programme on Nuclear Power Plant Safety 2011-2014: Interim Report. Espoo: VTT Technical Research Centre of Finland, p. 344-362 (VTT Technology; No. 80).

  Research output: Chapter in Book/Report/Conference proceeding › Chapter or book article › Professional

  Open Access

• RI-ISI analyses and inspection reliability of piping systems (RAIPSYS)

  Cronvall, O., Alhainen, J., Kaunisto, K., Männistö, I., Silvonen, T. & Vepsä, A., 2013, SAFIR2014: The Finnish Research Programme on Nuclear Power Plant Safety 2011-2014: Interim Report. Espoo: VTT Technical Research Centre of Finland, p. 302-312 (VTT Technology; No. 80).

  Research output: Chapter in Book/Report/Conference proceeding › Chapter or book article › Professional

  Open Access
• 2012

  Impact tests for IRIS_2010 benchmark exercise

  Vepsä, A., Saarenheimo, A., Tarallo, F., Rambach, J-M. & Orbovic, N., 2012, In: Journal of Disaster Research. 7, 5, p. 619-628 10 p.

  Research output: Contribution to journal › Article › Scientific › peer-review

  Open Access

  • Missiles 100%
  • Impact 80%
  • Wall 80%
  • Behavior 80%
  • Physical Exercise 80%
  8 Citations (Scopus)

• Sensitivity studies on a bending wall of IRIS_2010 benchmark exercise

  Saarenheimo, A., Tuomala, M., Välikangas, P. & Vepsä, A., 2012, In: Journal of Disaster Research. 7, 5, p. 629-637 9 p.

  Research output: Contribution to journal › Article › Scientific › peer-review

  Open Access

  • Physical Exercise 100%
  • Benchmark 100%
  • Bending 66%
  • Sensitivity Analysis 66%
  • Missiles 33%
  3 Citations (Scopus)
• 2011

  IMPACT2010 (IMPACT) and Structures under Soft Impact (SUSI): IMPACT and SUSI joint report

  Calonius, K., Hakola, I., Hostikka, S., Saarenheimo, A., Silde, A., Vepsä, A. & Tuomala, M., 2011, SAFIR2010: The Finnish Research Programme on Safety 2007-2010: Final Report. Espoo: VTT Technical Research Centre of Finland, p. 490-519 (VTT Tiedotteita - Research Notes; No. 2571).

  Research output: Chapter in Book/Report/Conference proceeding › Chapter or book article › Professional

  Open Access

  • Impact 100%
  • Project 60%
  • Fires 60%
  • Fire 60%
  • Fuel 40%

• Risk-informed Inspections of Piping (PURISTA): PURISTA summary report

  Simola, K., Cronvall, O., Männistö, I., Sarkimo, M. & Vepsä, A., 2011, SAFIR2010: The Finnish Research Programme on Safety 2007-2010: Final Report. Espoo: VTT Technical Research Centre of Finland, p. 357-367 (VTT Tiedotteita - Research Notes; No. 2571).

  Research output: Chapter in Book/Report/Conference proceeding › Chapter or book article › Professional

  Open Access

  • Risk 100%
  • Service Industries 57%
  • Inspection 57%
  • Service Inspection 57%
  • Economic and Social Development 28%
• 2009

  Risk-informed inspections of piping (PURISTA): PURISTA summary report

  Simola, K., Cronvall, O., Männistö, I., Sarkimo, M. & Vepsä, A., 2009, SAFIR2010: The Finnish Research Programme on Nuclear Power Plant Safety 2007-2010 : Interim Report . Espoo: VTT Technical Research Centre of Finland, p. 326-338 (VTT Tiedotteita - Research Notes; No. 2466).

  Research output: Chapter in Book/Report/Conference proceeding › Chapter or book article › Professional

  Open Access

  • Risk 100%
  • Inspection 57%
  • Service Inspection 57%
  • Qualification 28%
  • Project 28%

• Safety research on impact loaded structures

  Calonius, K., Hakola, I., Halonen, M., Hietalahti, J., Järvinen, E., Kuutti, J., Lapinluoma, L., Mäkinen, J., Saarenheimo, A. & Vepsä, A., 2009, Scientific activities in Safety and Security 2009. Rouhiainen, V. (ed.). Espoo: VTT Technical Research Centre of Finland, p. 46 - 47

  Research output: Chapter in Book/Report/Conference proceeding › Chapter or book article › Professional

  Open Access
• 2008

  Operational displacement shape based estimation of vibration borne stress variation in a pipeline

  Vepsä, A., 2008, Proceedings of the IMAC-XXVI: A conference & Exposition on Structral Synamics. Orlando, Florida, USA, 4 - 7 Feb. 2008. Vol. 4. p. 2333-2346

  Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

  • Finite Element Modeling 100%
  • Amplitudes 50%
  • Feedwater 50%
  • Nuclear Power Plant 50%
  • Time Domain 50%

• Rakennukseen siirtyvän liikennetärinän arviointi

  Talja, A., Vepsä, A., Kurkela, J. & Halonen, M., 2008, Espoo: VTT Technical Research Centre of Finland. 176 p. (VTT Tiedotteita - Meddelanden - Research Notes; No. 2425).

  Research output: Book/Report › Report

  Open Access
• 2006

  Vibration study of a secondary feed water pipeline RL61 of the Loviisa nuclear power plant

  Vepsä, A., 2006, Espoo: VTT Technical Research Centre of Finland. 27 p. (VTT Research Report; No. VTT-R-00712-06).

  Research output: Book/Report › Report
• 2005

  Application of finite element model updating to a feed water pipeline of a nuclear power plant

  Vepsä, A., Haapaniemi, H., Luukkanen, P., Nurkkala, P. & Saarenheimo, A., 2005, In: Nuclear Engineering and Design. 235, 17-19, p. 1849 - 1865 17 p.

  Research output: Contribution to journal › Article › Scientific › peer-review

  • Model 100%
  • Finite Element Modeling 66%
  • Value 50%
  • Independent Variables 50%
  • Correlation 50%
  7 Citations (Scopus)

• Preliminary studies for missile tests

  Saarenheimo, A., Martikainen, H., Tuomala, M. & Vepsä, A., 2005, Espoo: VTT Technical Research Centre of Finland. 92 p. (VTT Research Report; No. BTUO72-041292).

  Research output: Book/Report › Report

• RI-ISI pilot study of the Shut-down cooling system of the Olkiluoto 1/2 NPP units

  Simola, K., Holmberg, J-E., Cronvall, O., Männistö, I. & Vepsä, A., 2005, Espoo: VTT Technical Research Centre of Finland. 67 p. (VTT Tuotteet ja tuotanto. Tutkimusraportti; No. BTUO72-051318).

  Research output: Book/Report › Report
• 2004

  Determining operational loading from operational displacement shapes

  Saarenheimo, A., Haapaniemi, H., Luukkanen, P., Nurkkala, P. & Vepsä, A., 2004, Proceedings of the 22nd IMAC Conference and Exposition 2004. p. 635-642

  Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

• Operational modal analysis of a piping system

  Nurkkala, P., Haapaniemi, H., Luukkanen, P., Saarenheimo, A. & Vepsä, A., 2004, Proceedings of the 22nd Conference on structural dynamics, IMAC XXII . 7 p.

  Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review