Error
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering

INFORMATION SYSTEMS AND LOGISTICS IN CIVIL ENGINEERING

PROBABILISTIC MODELING OF EXPLOSIVE LOADING

Vestnik MGSU 11/2012
  • Mkrtychev Oleg Vartanovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Sciences, head, Scientific Laboratory of Reliability and Seismic Resistance of Structures, Professor, Department of Strength of Materials, Moscow State University of Civil Engineering (National Research University) (MGSU), ; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Dorozhinskiy Vladimir Bogdanovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, Assistant Lecturer, Department of Strength of Materials, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 278 - 282

According to existing design standards, explosive loading represents a special type of loading.
Explosive loading is, in most cases, local in nature, although it can exceed the loads for which
buildings are designed by a dozen of times.
The analysis of terrorist attacks with explosives employed demonstrates that charges have
a great power and, consequently, a substantial shock wave pressure. Blast effects are predictable
with a certain probability. Therefore, we cannot discuss the no-failure operation of individual structures.
The estimated reliability of buildings is a more important problem. That's how we can save
lives of those people who are outside of the area impacted by an explosion.
Explosive loading is a variable random process influenced by a variety of factors, including the
charge geometry, weight, etc. A shock wave can be reflected from surfaces and objects. Reference
data concerning physical properties of models of explosives are provided in various sources. That's
why we can talk about the blast load value with some probability.
The article deals with the probability modeling of the shock wave pressure. The charge weight
is chosen as a random parameter that has a normal Gauss distribution.
Any structural design must be backed by reliable and verified calculations and mathematical
models based on advanced high-speed PCs and software. The finite element software package
ANSYS/LS-DYNA was employed to complete this research. The problem was solved in the time
domain through the employment of the fourth integration of equations of motion.
We can assess the reliability of structures and buildings if we know the parameters of random
explosive effects. Numerical simulation helps identify random explosive impacts. This problem is
relevant in connection with the construction of unique high-rise buildings and extensive sports facilities
that accommodate dozens of thousands of viewers.

DOI: 10.22227/1997-0935.2012.11.278 - 282

References
  1. Selivanov V.V. Chislennaya otsenka vliyaniya formy VV na parametry vozdushnykh udarnykh voln [Numerical Evaluation of Explosive Effects on Parameters of Air Shock Waves]. Fizika goreniya i vzryva [Combustion and Blast Physics]. 1985, vol. 21, no. 4, pp. 93—97.
  2. Adushkin V.V., Korotkov A.I. Parametry udarnoy volny vblizi ot zaryada VV pri vzryve v vozdukhe [Air Shock Wave Parameters in Proximity to an Explosive Charge, if the Blast Is Performed in the Air]. Prikladnaya mekhanika i tekhnicheskaya fi zika [Applied Mechanics and Physics]. 1961, no. 5, pp. 119—123.
  3. Orlenko L.P., Andreev S.G., Babkin A.V., Baum F.A., Imkhovik N.A., Kobylkin I.F., Kolpakov V.I., Ladov S.V., Odintsov V.A., Okhitin V.N., Selivanov V.V., Solov’ev V.S., Stanyukovich K.P., Chelyshev V.P., Shekhter B.I. Fizika vzryva [Physics of an Explosion]. Moscow, FIZMATLIT Publ., 2004, 832 p.
  4. Mkrtychev O.V. Bezopasnost’ zdaniy i sooruzheniy pri seysmicheskikh i avariynykh vozdeystviyakh [Safety of Buildings and Structures Exposed to Seismic and Accidental Loads]. Moscow, MGSU Publ., 2010, 152 ð.
  5. Mkrtychev O.V., Dorozhinskiy V.B.; Vedyakov I.I. and Vardanyan G.S., editors. Bezopasnost’ zdaniy i sooruzheniy pri vzryvnykh vozdeystviyakh [Safety of Buildings and Structures Exposed to Explosive Loads]. Vestnik NITs «Stroitel’stvo». Issledovaniya po teorii sooruzheniy [Proceedings of Research Centre for Construction. Structural Theory Research]. Collected works. Moscow, NITs «Stroitel’stvo» publ., 2011, pp. 21—34.
  6. Larcher M. Simulation of the Effects of an Air Blast Wave. JRC 41337. European Communities, 2007.
  7. Schwer L. A Brief Introduction to Coupling Load Blast Enhanced with Multi-Material ALE: the Best of Both Worlds for Air Blast Simulation. LS-DYNA Forum, Bamberg, 2010.
  8. Khristoforov B.D. Vliyanie svoystv istochnika na deystvie vzryva v vozdukhe i vode [Influence of the Blast Source Properties on Blast Effects in the Air and in the Water]. Fizika goreniya i vzryva [Combustion and Blast Physics]. 2004, vol. 40, no. 6, pp. 115—118.
  9. Gel’fand B.E., Sil’nikov M.V. Fugasnye effekt vzryvov [Fougasse Effect of Blasts]. St.Petersburg, Poligon Publ., 2002, 272 p.
  10. Rayzer V.D. Teoriya nadezhnosti v stroitel’nom proektirovanii [Theory of Reliability in Structural Design]. Moscow, ASV Publ., 1998, 304 p.
  11. Rzhanitsyn A.R. Teoriya rascheta stroitel’nykh konstruktsiy na nadezhnost’ [Theory of Reliability Analysis of Structures]. Moscow, Stroyizdat Publ., 1978, 239 p.

Download

Results 1 - 1 of 1