000021959 001__ 21959
000021959 005__ 20170622131314.0
000021959 04107 $$aeng
000021959 046__ $$k2017-06-15
000021959 100__ $$aMäkinen, Jari
000021959 24500 $$aBLAST ANALYSIS: DETERMINATION OF EQUIVALENT STATIC LOAD

000021959 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021959 260__ $$bNational Technical University of Athens, 2017
000021959 506__ $$arestricted
000021959 520__ $$2eng$$aIn this paper, we study the blast analysis [1] caused by hydrocarbon explosion. The mount of hydrocarbon is known in advance and the equivalent TNT (trinitrotoluene) explosion is calculated via this knowledge [2,3]. The equivalent TNT explosion will cause the impulsive actions to the structure. The main focus is to study what will be the equivalent static load of the structure. The structural design engineers need this information in order to design properly the structure. If the blast center is relatively far away, usually other design criteria are more determinate. However, the blast analyses have to accomplish in order to confirm the design criteria. In blast analysis [4], the magnitude of the blast pressure and the duration time are important features. Usually, the the blast duration time is very short yielding that the statically equivalent pressure load is considerable lower than the peak pressure of blast wave. This give reason for the reduction factor. The extent of reduction factor depends greatly on the dynamics properties of the structures. The lowest dynamics eigenvalues and theirs time of oscillation affect how large the reduction factor could be. In this paper, we analyze different structures acting on the blast pressure loads by the nonlinear transient analyze methods and define the equivalent static loading in these cases. In many cases the linear structural analysis is enough to reach appropriate results. The design rules how to determinate statically equivalent loads in the blast analyses are suggested.

000021959 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021959 653__ $$a

000021959 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021959 720__ $$aMäkinen, Jari$$iHautala, Janne$$iFillion, Joshua
000021959 8560_ $$ffischerc@itam.cas.cz
000021959 8564_ $$s117165$$uhttps://invenio.itam.cas.cz/record/21959/files/18466.pdf$$yOriginal version of the author's contribution as presented on CD, section: [MS01] Advances in Computational Structural Vibrations
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000021959 962__ $$r21500
000021959 980__ $$aPAPER