Numerical simulations of blast loads from near-field ground explosions in ai

• Autorzy: Dobrociński S. , Flis L.

Identyfikatory

DOI

10.1515/sgem-2015-0040

• Języki publikacji: EN

Abstrakty

EN

Numerical simulations of air blast loading in the near-field acting on the ground have been performed. A simplified blast model based on empirical blast loading data representing spherical and hemispherical explosive shapes has been simulated. Conwep is an implementation of the empirical blast models presented by Kingery and Bulmash, which is also implemented in the commercial code LS-DYNA based on work done by Rahnders-Pehrson and Bannister. This makes it possible to simulate blast loads acting on structures representing spherical and hemispherical explosive shapes of TNT with reasonable computational effort as an alternative to the SPH and Eulerian model. The CPU time for the simplified blast model is however considerably shorter and may still be useful in time consuming concept studies. Reasonable numerical results using reasonable model sizes can be achieved not only for modelling near-field explosions in air but most areas of geotechnical. Calculation was compared with blast SPH and Eulerian model.

Słowa kluczowe

EN

near-field; blast load; numerical simulation; high explosive

• Wydawca: De Gruyter
• Czasopismo: Studia Geotechnica et Mechanica
• Rocznik: 2015
• Tom: Vol. 37, nr 4
• Strony: 11--17
• Opis fizyczny: Bibliogr. 16 poz., tab., rys.

Twórcy

autor

Dobrociński S.

• Mechanical Engineering Department, Gdynia Polish Naval Academy, Śmidowicza 19, 81-103 Gdynia, Poland

autor

Flis L.

• Mechanical Engineering Department, Gdynia Polish Naval Academy, Śmidowicza 19, 81-103 Gdynia, Poland

Bibliografia

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