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  • Conference paper
    Tippetts T, Brierley N, Cawley P, 2013,

    , 39th Annual Review of Progress in Quantitative Nondestructive Evaluation (QNDE), Publisher: AMER INST PHYSICS, Pages: 1773-1780, ISSN: 0094-243X
  • Conference paper
    Huthwaite P, Ribichini R, Simonetti F, Cawley P, Lowe MJSet al., 2013,

    , 39th Annual Review of Progress in Quantitative Nondestructive Evaluation (QNDE), Publisher: AMER INST PHYSICS, Pages: 729-736, ISSN: 0094-243X
  • Conference paper
    Attarian V, Cegla F, Cawley P, 2013,

    , 39th Annual Review of Progress in Quantitative Nondestructive Evaluation (QNDE), Publisher: AMER INST PHYSICS, Pages: 270-277, ISSN: 0094-243X
  • Conference paper
    Escobar-Ruiz E, Cawley P, Nagy PB, Collison I, Wright Det al., 2013,

    , 39th Annual Review of Progress in Quantitative Nondestructive Evaluation (QNDE), Publisher: AMER INST PHYSICS, Pages: 1409-1416, ISSN: 0094-243X
  • Conference paper
    Attarian V, Cegla F, Cawley P, 2013,

    Long Term Stability of Guided Wave Structural Health Monitoring Using Distributed Adhesively Bonded Piezoelectric Transducers

    , 9th International Workshop on Structural Health Monitoring (IWSHM), Publisher: DESTECH PUBLICATIONS, INC, Pages: 2202-2209
  • Conference paper
    Brierley N, Tippetts T, Cawley P, 2013,

    , 39th Annual Review of Progress in Quantative Nondestructive Evaluation (QNDE), Publisher: AMER INST PHYSICS, Pages: 1781-1788, ISSN: 0094-243X
  • Conference paper
    Ptaszek G, Cawley P, Almond D, Pickering Set al., 2013,

    , 39th Annual Review of Progress in Quantitative Nondestructive Evaluation (QNDE), Publisher: AMER INST PHYSICS, Pages: 571-578, ISSN: 0094-243X
  • Journal article
    Carandente R, Lovstad A, Cawley P, 2012,

    , NDT & E INTERNATIONAL, Vol: 52, Pages: 57-68, ISSN: 0963-8695
    • Cite
    • Citations: 32
  • Journal article
    Cawley P, Cegla F, Galvagni A, 2012,

    , INSIGHT, Vol: 54, Pages: 594-601, ISSN: 1354-2575
    • Cite
    • Citations: 61
  • Journal article
    Huthwaite P, Simonetti F, 2012,

    , IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, Vol: 59, Pages: 2292-2303, ISSN: 0885-3010
  • Journal article
    Lowe MJ, Cawley P, Galvagni A, 2012,

    , J Acoust Soc Am, Vol: 132

    Guided Wave Testing (GWT) of pipelines for the detection of corrosion has been developed over about 20 years and is now a well established method worldwide, used mostly in the oil and gas industry. The established approach is as a screening tool: GWT is used to detect the presence of significant reflectors which are then examined locally in detail using conventional methods of NDE. To date most of the equipment has been developed for deployment solely at the time of test. However recent developments include permanently-attached transducers which can be left in place after testing, for example to allow easier access for future testing at difficult locations such as buried pipes. This is enabling a new approach, in which improved sensitivity may be achieved by detecting changes with respect to earlier reference signals, and also continuous monitoring which may follow degradation during service. The presentation will include a summary of the GWT method and discussion of current research for monitoring.
  • Journal article
    Huthwaite P, Simonetti F, Duric N, 2012,

    , JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, Vol: 132, Pages: 1249-1252, ISSN: 0001-4966
    • Cite
    • Citations: 22
  • Journal article
    Xi X, Cegla F, Mettin R, Holsteyns F, Lippert Aet al., 2012,

    , JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, Vol: 132, Pages: {37-47}-{37-47}, ISSN: 0001-4966

    The transport of bubbles to a neighboring surface is very important in surface chemistry, bioengineering, and ultrasonic cleaning, etc. This paper proposes a multi-bubble transport method by using an acoustic standing wave field and establishes a model that explains the multi-bubble translation by expressing the balance between Bjerknes forces and hydrodynamic forces on a bubble in a liquid medium. Results indicated that the influence of primary Bjerknes force, secondary Bjerknes force, and buoyancy force on the bubble translation depends on the position of the target bubble in the acoustic field. Moreover, it was found that increasing the size of a bubble or pressure amplitude can accelerate the bubble motion and enhance the bubble-bubble interaction. The secondary Bjerknes force between two bubbles can switch from an attractive one when they oscillate in phase to a repulsive one when the bubble oscillations are out of phase. These findings provide an insight into the multi-bubble translation near a surface and can be applied to future bubble motion control studies, especially in drug delivery, sonoporation, and ultrasonic cleaning. (C) 2012 Acoustical Society of America. [http://dx.doi.org/10.1121/1.4726009]
  • Journal article
    Russell J, Long R, Duxbury D, Cawley Pet al., 2012,

    , INSIGHT, Vol: 54, Pages: 386-393, ISSN: 1354-2575
    • Cite
    • Citations: 17
  • Journal article
    Weekes B, Almond DP, Cawley P, Barden Tet al., 2012,

    , NDT & E INTERNATIONAL, Vol: 49, Pages: 47-56, ISSN: 0963-8695
    • Cite
    • Citations: 101
  • Journal article
    Long R, Russell J, Cawley P, 2012,

    , INSIGHT, Vol: 54, Pages: 380-385, ISSN: 1354-2575
    • Cite
    • Citations: 24
  • Journal article
    Jones RE, Simonetti F, Lowe MJS, Bradley IPet al., 2012,

    , JOURNAL OF NONDESTRUCTIVE EVALUATION, Vol: 31, Pages: 117-127, ISSN: 0195-9298
    • Cite
    • Citations: 10
  • Journal article
    Fan Z, Lowe MJS, 2012,

    , NDT & E INTERNATIONAL, Vol: 47, Pages: 124-133, ISSN: 0963-8695
    • Cite
    • Citations: 49
  • Journal article
    Prajapati S, Nagy PB, Cawley P, 2012,

    , NDT & E INTERNATIONAL, Vol: 47, Pages: 56-65, ISSN: 0963-8695
    • Cite
    • Citations: 14
  • Journal article
    Carandente R, Cawley P, 2012,

    , NDT & E INTERNATIONAL, Vol: 46, Pages: 41-47, ISSN: 0963-8695
    • Cite
    • Citations: 63

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