Nils Rydén

Sökresultat

• 2024

  Ultrasonic imaging of concrete-embedded corroded steel liners using linear and nonlinear evaluation

  Nilsson, M., Ulriksen, P. & Rydén, N., 2024 sep. 17, (E-pub ahead of print) I: Nondestructive Testing and Evaluation. 29 s.

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  Öppen tillgång

  • Wave 100%
  • Shear Wave 100%
  • Investigation 40%
  • Experiment 20%
  • Contamination 20%

• Nonlinear Wave Modulation for the Evaluation of Corroded Steel Plates Embedded in Concrete

  Nilsson, M., Ulriksen, P. & Rydén, N., 2024, I: Journal of Advanced Concrete Technology. 22, 9, s. 545-560 16 s.

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  Öppen tillgång

  • Early Stage 100%
  • Steel Plate 100%
  • Nuclear Reactor 33%
  • Reactor Containment 33%
  • Ultrasonics 33%
• 2022

  Nonlinear ultrasonic characteristics of a corroded steel plate

  Nilsson, M., Ulriksen, P. & Rydén, N., 2022 sep. 18, I: Nondestructive Testing and Evaluation. 25 s.

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  Öppen tillgång

  • Characteristics 100%
  • Steel Plate 100%
  • Ultrasonics 100%
  • Sidebands 100%
  • Steel 100%
• 2017

  Lamb Wave Phase Velocity Imaging of Concrete Plates with 2D Arrays

  Tofeldt, O. & Rydén, N., 2017 dec. 13, I: Journal of Nondestructive Evaluation. 37, 4, 13 s.

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  Öppen tillgång

  • Lamb Wave 100%
  • Phase Velocity 100%
  • Images 40%
  • Low Frequency 40%
  • Frequency Bandwidth 40%

• Zero-group velocity modes in plates with continuous material variation through the thickness

  Tofeldt, O. & Rydén, N., 2017, I: Journal of the Acoustical Society of America. 141, 5, 3302.

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  • Zeros 100%
  • Group Velocity 100%
  • Testing 33%
  • Error 33%
  • Finite Element Method 33%
• 2016

  Enhanced impact Echo frequency peak by time domain summation of signals with different source receiver spacing

  Ryden, N., 2016 jan. 1, I: Smart Structures and Systems. 17, 1, s. 59-72 14 s.

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  • Receivers 100%
  • Time Domain 100%
  • Peak Frequency 100%
  • Zeros 50%
  • Filtration 50%
• 2015

  Damage Identification in Concrete using Impact Non-Linear Reverberation Spectroscopy

  Dahlén, U., Rydén, N. & Jakobsson, A., 2015, I: NDT & E International. 75, s. 15-25

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  Fil

  • Brittle Material 100%
  • Linear Variation 100%
  • Resonance Frequency 100%
  • Dynamic Range 100%
  • Microdamage 100%
  341 Nedladdningar (Pure)

• Frequency Variable Surface Compaction of Sand Using Rotating Mass Oscillators

  Wersall, C., Larsson, S., Rydén, N. & Nordfelt, I., 2015, I: Geotechnical Testing Journal. 38, 2, s. 198-207

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  • Compaction 100%
  • Small Scale 25%
  • High Degree 25%
  • Dependent Property 25%
  • Dynamic Response 25%

• Poisson's ratio from polarization of acoustic zero-group velocity Lamb mode.

  Tofeldt, O. & Rydén, N., 2015, I: The Journal of the Acoustical Society of America. 138, 1

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  • Velocity 100%
  • Surface 66%
  • Elastic Plate 33%
  • Acoustic Mode 33%
  • Normal Surface 33%

• Systematic errors in Impact-Echo thickness estimation due to near field effects

  Tofeldt, O. & Rydén, N., 2015, I: NDT & E International. 69, s. 16-27

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  Öppen tillgång

  • Investigation 100%
  • Speed 100%
  • Surface Wave 100%
  • P Wave 100%
  • Rayleigh Wave 100%
• 2012

  Acoustoelastic Effects on the Resonance Frequencies of Prestressed Concrete Beams – Short-term Measurements

  Lundqvist, P. & Rydén, N., 2012, I: NDT & E International. 50, s. 36-41

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  • Resonance Frequency 100%
  • Concrete Beam 100%
  • Concrete Structure 40%
  • Theoretical Basis 20%
  • Acoustics 20%

• Application of resonant acoustic spectroscopy to asphalt concrete beams for determination of the dynamic modulus

  Gudmarsson, A., Rydén, N. & Birgisson, B., 2012, I: Materials and Structures. 45, 12, s. 1903-1913

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  • Asphalt Concrete 100%
  • Concrete Beam 100%
  • Mode of Vibration 50%
  • Testing Temperature 25%
• 2011

  A mobile multi-depth borehole sensor set-up to study the surface-to-base seismic transfer functions

  Obando, E., Rydén, N. & Ulriksen, P., 2011, I: Engineering Geology. 123, 3, s. 246-258

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  • Investigation 100%
  • Set 100%
  • Borehole 100%
  • Depth 100%
  • Transfer Function 100%

• Resonant frequency testing of cylindrical asphalt samples

  Rydén, N., 2011, I: European Journal of Environmental and Civil Engineering. 15, 4, s. 587-600

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  • Testing 100%
  • Resonant Frequency 100%
  • Temperature 33%
  • Temperature Range 33%
  • Frequency Ranges 33%
• 2010

  Phase-scanning approach to correct time-shift inaccuracies in the surface-wave walk-away method

  Obando, E., Park, C. B., Rydén, N. & Ulriksen, P., 2010, I: Soil Dynamics and Earthquake Engineering. 30, 12, s. 1528-1539

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  • Time Shift 100%
  • Surface Wave 100%
  • Images 66%
  • Phase Shift 66%
  • Image 40%

• The influence of Poisson's ratio on the excitability of the first higher symmetric (S1) zero-group velocity Lamb mode.

  Rydén, N., 2010, I: Journal of the Acoustical Society of America. 128, 4, s. 2376-2376

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  • Zeros 100%
  • Group Velocity 100%
  • Velocity 100%
  • Asphalt 37%
  • Amplitude 25%
• 2009

  Analysis of surface waves from the light weight deflectometer

  Rydén, N. & Mooney, M. A., 2009, I: Soil Dynamics and Earthquake Engineering. 29, 7, s. 1134-1142

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  • Seismic Analysis 100%
  • Seismic Wave 100%
  • Pavement Design 100%
  • Soil Stiffness 100%
  • Frequency Limit 100%
• 2008

  Noncontact surface wave testing of pavements using microphones.

  Rydén, N., Lowe, M. J. S. & Cawley, P., 2008, I: Journal of the Acoustical Society of America. 124, 4, 2576.

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  • Testing 100%
  • Experiments 16%
  • Road 16%
  • Experimental Result 16%
  • Multichannel 16%
• 2006

  Fast simulated annealing inversion of surface waves on pavement using phase-velocity spectra

  Rydén, N. & Park, C. B., 2006, I: Geophysics. 71, 4, s. R49-R58

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  • Inversion 100%
  • Spectra 100%
  • Surface Wave 100%
  • Pavement 100%
  • Construction 33%
• 2005

  Combined use of active and passive surface waves

  Park, C. B., Miller, R. D., Rydén, N., Xia, J. & Ivanov, J., 2005, I: Journal of Environmental & Engineering Geophysics. 10, 3, s. 323-334

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  • Surface Wave 100%
  • Data Set 60%
  • Image 40%
  • Depth 40%
  • Receiver 40%
• 2004

  Guided wave propagation in three-layer pavement structures

  Rydén, N. & Lowe, M., 2004, I: Journal of the Acoustical Society of America. 116, 5, s. 2902-2913

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  • Wave 100%
  • Diffraction 100%
  • Pavement 100%
  • Pavement Layer 100%
  • Guided Wave Propagation 100%

• Multimodal approach to seismic pavement testing

  Rydén, N., Park, C., Ulriksen, P. & Miller, R., 2004, I: Journal of Geotechnical and Geoenvironmental Engineering. 130, 6, s. 636-645

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

  • Testing 100%
  • Multichannel 100%
  • Dispersion Curve 100%
  • Pavement 100%
  • Receivers 75%

• Surface waves in inversely dispersive media

  Rydén, N. & Park, C. B., 2004, I: Near Surface Geophysics. 2, 4, s. 187-197

  Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review