Search for dissertations about: "blast load"

Showing result 11 - 15 of 21 swedish dissertations containing the words blast load.

  2. 11. Reduced Order Modeling and Substructuring : Applications in Nonlinear Structural Dynamics

    Author : Linus Andersson; Byggnadsmekanik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Reduced order modeling; Substructuring; Nonlinear dynamics; Geometrically nonlinear; Modal derivatives; Blast loading; Soft-body impact; Glass structures;

    Abstract : A structural design process typically involves various load cases for which a sufficient load-bearing capacity must be demonstrated. In addition to static load cases, a verification of dynamic loads, such as blast and impact loading, may be required. READ MORE

  4. 12. Analyses of shotcrete stress states due to varying lining thickness and irregular rock surfaces

    Author : Andreas Sjölander; Anders Ansell; Richard Malm; Fredrik Johansson; Jan Alemo; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Shotcrete; cracking; shrinkage; block load; varying thickness; numerical simulations; fibre reinforcement; Byggvetenskap; Civil and Architectural Engineering;

    Abstract : Shotcrete is sprayed concrete applied pneumatically under high pressure and was invented in the beginning of the 1900's. This new technique decreased the construction time and since steel fibres were introduced in the shotcrete during the 1970's, shotcrete has been the primary support method for tunnels. READ MORE

  5. 13. Unmanned operation of load-haul-dump vehicles in mining environments

    Author : Johan Larsson; Alessandro Saffiotti; Thomas Hellström; Örebro universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Computer and Systems Science; Datavetenskap;

    Abstract : Underground mines typically do not represent the best working conditions for humans, and many mining companies have the intent to remove all humans from the ore extraction areas. To achieve this goal automation of the mining machinery is required. READ MORE

  6. 14. Numerical simulations of blast loaded steel plates for improved vehicle protection

    Author : Björn Zakrisson; Gerald Nurick; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hållfasthetslära; Solid Mechanics;

    Abstract : In the past decade, there has been an increasing demand from governments for high level protections for military vehicles against explosives. However, the design and validation of protection is a time consuming and expensive process, where previous experience plays an important role. READ MORE

  7. 15. Behaviour of blast-induced damaged zone around underground excavations in hard rock mass

    Author : David Saiang; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mining and Rock Engineering; Gruv- och berganläggningsteknik;

    Abstract : The presence of blast-induced damaged zone around an excavation boundary has been an important concern in rock construction. It is generally believed that the presence of this zone can pose problems related to stability and flow and consequently impair the performance and functionality of the excavation. READ MORE