Search results for: TENSOMETRIC MEASUREMENT

• Application of the Mathar method to identify internal stress variation in steel as a welding process result

  Publication

  • D. Kowalski

  - Civil and Environmental Engineering Reports - Year 2017

  The paper deals with the method to identify internal stresses in two-dimensional steel members. Steel members were investigated in the delivery stage and after assembly, by means of electric-arc welding. In order to perform the member assessment two methods to identify the stress variation were applied. The first is a non-destructive measurement method employing local external magnetic field and to detecting the induced voltage,...

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• Influence of geometrical imperfections on stresses in cylindrical shells

  Publication

  • D. Kowalski

  - Year 2014

  Results of the numerical analysis of the shells of storage tanks of 50 000 m3 capacity with geometrical imperfections are presented in the paper. Results were verified by tensometric tests performed on the real tank. It was recognized that real geometrical imperfections cause increase of stresses in the tank construction by 30%.