TY - GEN
T1 - Prediction of effective thermo-mechanical properties of particulate composites
AU - Annapragada, S. Ravi
AU - Sun, Dawei
AU - Garimella, Suresh V.
PY - 2006
Y1 - 2006
N2 - A micromechanics model is developed to predict the effective thermo-mechanical properties of energetic materials, which are composite materials made from agglomeration of particles of a range of sizes. A random packing algorithm is implemented to construct a representative volume element for the heterogeneous material based on the experimentally determined particle diameter distribution. The effective mechanical properties of the material are then evaluated through finite element modeling, while its thermal properties are determined through a finite volume approach. The model is first carefully validated against results from the literature and is then used to estimate the thermo-mechanical properties of particular energetic materials. Good agreement is found between experimental results and predictions. The stress-bridging phenomenon in the particulate materials is captured by the model. Thermodynamic averaging is shown to be a poor representation for the estimation of thermal properties of these heterogeneous materials. Also, the general elastic-plastic assumption is found not to be applicable for describing the mechanical behavior of energetic composites.
AB - A micromechanics model is developed to predict the effective thermo-mechanical properties of energetic materials, which are composite materials made from agglomeration of particles of a range of sizes. A random packing algorithm is implemented to construct a representative volume element for the heterogeneous material based on the experimentally determined particle diameter distribution. The effective mechanical properties of the material are then evaluated through finite element modeling, while its thermal properties are determined through a finite volume approach. The model is first carefully validated against results from the literature and is then used to estimate the thermo-mechanical properties of particular energetic materials. Good agreement is found between experimental results and predictions. The stress-bridging phenomenon in the particulate materials is captured by the model. Thermodynamic averaging is shown to be a poor representation for the estimation of thermal properties of these heterogeneous materials. Also, the general elastic-plastic assumption is found not to be applicable for describing the mechanical behavior of energetic composites.
UR - https://www.scopus.com/pages/publications/85196500999
UR - https://www.scopus.com/pages/publications/85196500999#tab=citedBy
U2 - 10.1115/IMECE2006-14720
DO - 10.1115/IMECE2006-14720
M3 - Conference contribution
AN - SCOPUS:85196500999
SN - 0791837904
SN - 9780791837900
T3 - American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
BT - Proceedings of 2006 ASME International Mechanical Engineering Congress and Exposition, IMECE2006 - Heat Transfer
PB - American Society of Mechanical Engineers (ASME)
T2 - 2006 ASME International Mechanical Engineering Congress and Exposition, IMECE2006
Y2 - 5 November 2006 through 10 November 2006
ER -