TY - GEN
T1 - A 3D micromechanics model for strain rate dependent inelastic polymer matrix composites
AU - Zhu, Linfa
AU - Chattopadhyay, Aditi
AU - Goldberg, Robert K.
PY - 2006
Y1 - 2006
N2 - A 3D incremental sectional micromechanics model is developed for strain rate dependent inelastic polymer matrix composite materials. A repeating unit cell is identified within the material system, which is then divided into several subcells. Uniform stress and uniform strain assumptions are applied in each subcell. Appropriate stress and strain continuity assumptions are made between subcells. A two-level approach is developed for solving the system of equations of the micromechanics model in order to improve the computational efficiency. The developed micromechanics model is implemented into a commercial finite element analysis package. The results show that the current 3D micromechanics model can address the rate dependent inelastic behavior of polymer composite materials accurately and efficiently. Numerical results are also presented to demonstrate the applicability of the micromechanics theory in modeling high velocity impact of composite laminates. Good correlation is observed with experimental observation.
AB - A 3D incremental sectional micromechanics model is developed for strain rate dependent inelastic polymer matrix composite materials. A repeating unit cell is identified within the material system, which is then divided into several subcells. Uniform stress and uniform strain assumptions are applied in each subcell. Appropriate stress and strain continuity assumptions are made between subcells. A two-level approach is developed for solving the system of equations of the micromechanics model in order to improve the computational efficiency. The developed micromechanics model is implemented into a commercial finite element analysis package. The results show that the current 3D micromechanics model can address the rate dependent inelastic behavior of polymer composite materials accurately and efficiently. Numerical results are also presented to demonstrate the applicability of the micromechanics theory in modeling high velocity impact of composite laminates. Good correlation is observed with experimental observation.
UR - http://www.scopus.com/inward/record.url?scp=34247246241&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34247246241&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:34247246241
SN - 1563478080
SN - 9781563478086
T3 - Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
SP - 1147
EP - 1164
BT - Collection of Technical Papers - 47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
T2 - 47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Y2 - 1 May 2006 through 4 May 2006
ER -