Year 2015

• Ground anchors diagnostic process based on elastic wave propagation method

  Publication

  • B. Zima

  - Prace Studentów Politechniki Wrocławskiej. Seria : Konferencje - Year 2015

  The paper is focused on analysis of elastic wave propagation in the context of diagnostics of ground anchors. Numerical simulations were performed to assess the possibility of evaluation of the anchorage quality. It was assumed that the quality and the load capacity of the anchor system directly depend on the length, on which mortar and steel cooperate.

• Numerical FDM modelling of wave propagation in concrete structure

  Publication

  • B. Zima
  • R. Kędra

  - Prace Studentów Politechniki Wrocławskiej. Seria : Konferencje - Year 2015

  The article presents application of finite difference method to damage detection and its size evaluation in concrete structure by elastic wave propagation method. The simulations of wave propagation in concrete structure were performed for six different damage scenarios. Damages were modelled as areas with changed material properties. Investigation focused on the influence of damage size on the energy of wave reflection. Presented...

• THE INFLUENCE OF PET MECHANICAL PROPERTIES ON SBM PROCESS PARAMETERS – LITERATURE REVIEW

  Publication

  • P. Wawrzyniak

  - Prace Studentów Politechniki Wrocławskiej. Seria : Konferencje - Year 2015

  In the paper it is said about the influence of PET (polyethylene terephthalate) mechanical properties on SBM (stretch blow molding) process output parameters changes. The below paper mentions also about the influence of PET orientation and crystallization processes on mechanical and thermal properties of PET material during SBM process. All mechanical data of PET material and SBM process output parameters changes are from collected...

• THE INFLUENCE OF WSR PARAMETER ON PET BOTTLE THICKNESS PROFILE IN SBM FROM PREFORM PROCESS

  Publication

  • P. Wawrzyniak

  - Prace Studentów Politechniki Wrocławskiej. Seria : Konferencje - Year 2015

  From a mechanical point of view, the thickness profile of PET bottles manufactured by ISBM process is determined by mechanical and thermal response of blown preforms. From the microscopic point of view the biggest influence on the mechanical and thermal properties of PET bottles have orientation and crystallization processes. From a technological point of view, the thickness profile of PET bottles after manufacture by SBM process...

Year 2014

• Guided wave propagation in diagnostic of steel elements

  Publication

  • B. Zima
  • R. Kędra

  - Prace Studentów Politechniki Wrocławskiej. Seria : Konferencje - Year 2014

  This paper is devoted to numerical investigations of elastic wave propagation in steel elements. The aim of this study is to conduct numerical analysis and experimental investigations on the propagation of elastic waves in steel elements in the context of damage detection. In particular, this paper is devoted to detection of damage occurring in the form of notch or changed thickness. This approach utilized the fact that any discontinuities...