Accession Number : AD0479806


Title :   TWO-STORY STRUCTURE SUBJECTED TO IMPULSIVE LOADING


Descriptive Note : Master's thesis


Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA


Personal Author(s) : Bauman, John M


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/479806.pdf


Report Date : Jan 1962


Pagination or Media Count : 107


Abstract : Experimental and analytical studies are made of the elastic and elastic-plastic response of a three degree of freedom dynamical system composed of three rigid and compact masses connected by slender columns, the bottom (heaviest) mass being suspended as a ballistic pendulum and subjected to an initial velocity step. Such a system is related to the behavior of machinery mounted in a ship subjected to an underwater explosion. The analytical work was performed on a high speed digital computer and employed mathematical description of the structural members in which force-deflection relations depended upon previous plastic strain history. Comparisons are made between experimental and analytical responses on the basis of the velocity-time history of the two smaller masses. Good agreement is shown.


Descriptors :   *BUILDINGS , *SHIP STRUCTURAL COMPONENTS , DEFLECTION , DIGITAL COMPUTERS , ELASTIC PROPERTIES , EXPLOSION EFFECTS , MACHINES , MATHEMATICAL MODELS , NUMERICAL ANALYSIS , PLASTIC PROPERTIES , SHOCK WAVES , SLENDER BODIES , STRUCTURES , THEORY , UNDERWATER EXPLOSIONS


Subject Categories : Marine Engineering
      Explosions
      Ballistics


Distribution Statement : APPROVED FOR PUBLIC RELEASE