Finite Volume Method for the Combustion Reaction of Energetic Materials

• Autorzy: Yu Yanchun , Fu Qiang , Ma Jingxin , Chen Weidong , Yan Han

Identyfikatory

DOI

10.22211/cejem/168511

• Języki publikacji: EN

Abstrakty

EN

In order to analyse the effects of launch on the internal structure due to launch and given the relative paucity of experimental tests in this regime numerical simulations are an important method of prediction. Viscoelastic statistical crack mechanics offer a solution to the dynamic damage problems of explosives involved in explosion, impact and collision. Most finite element software does not include a viscoelastic statistical crack constitutive model; the model can only be embedded in the finite element software. Therefore, a computer program based on the finite volume method combined with viscoelastic statistical crack mechanics is presented, aiming to analyze the explosion problems more precisely and conveniently. A combustion equation of state is proposed to study the combustion reaction of explosives; the trends of temperature and stress of explosive during the combustion process are studied; Hot spot zones formed inside explosives are analyzed. The results are in accordance with the reaction law of combustion. The results indicate that when the bottom of the explosive charge is heated to a certain temperature, the explosive charge have a combustion reaction occurs. This conclusion has important value for studying the effect of the base gap on the launch safety of explosive munitions.

Słowa kluczowe

EN

finite volume method; viscoelastic statistical crack mechanics; combustion reaction; energetic materials; combustion equation of state

• Wydawca: Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
• Czasopismo: Central European Journal of Energetic Materials
• Rocznik: 2023
• Tom: Vol. 20, no. 2
• Strony: 159--199
• Opis fizyczny: Bibliogr. 40 poz., rys., tab., wykr.

Twórcy

autor

Yu Yanchun

• School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin, 150030, China

autor

Fu Qiang

• School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin, 150030, China

autor

Ma Jingxin

• School of Astronautics and Architectural Engineering, Harbin Engineering University, Harbin, 150001, China

autor

Chen Weidong

• School of Astronautics and Architectural Engineering, Harbin Engineering University, Harbin, 150001, China

autor

Yan Han

• School of Astronautics and Architectural Engineering, Harbin Engineering University, Harbin, 150001, China

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