Modelling of the Viscoplastic Behaviour of Homogeneous Solid Propellants

• Autorzy: Pyrz M. , Zalewski R.
• Języki publikacji: EN

Abstrakty

EN

This study is concerned with the mechanical properties of homogenous solid propellants. The experimental results demonstrate the high strain rate sensitivity of these materials. A modified viscoplastic model of the Bodner- Partom type was applied to simulate the nonlinear behaviour of solid propellants when subjected to uni-axial loading conditions. The material parameters of the constitutive law were identified numerically using the evolutionary algorithm. The capability of the proposed approach was investigated for a representative solid fuel sample. The efficiency of the method is discussed.

Słowa kluczowe

EN

solid propellants; experiments; modelling; parameter identification; evolutionary algorithms

• Czasopismo: Central European Journal of Energetic Materials
• Rocznik: 2015
• Tom: Vol. 12, no. 1
• Strony: 159--174
• Opis fizyczny: Bibliogr. 23 poz., rys., tab.

Twórcy

autor

Pyrz M.

• Warsaw University of Technology, Institute of Vehicles, Warsaw, Narbutta 84, Poland

autor

Zalewski R.

• Warsaw University of Technology, Institute of Machine Design Fundamentals, Warsaw, Narbutta 84, Poland

Bibliografia

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