TY - GEN
T1 - Deformation analysis of damage region on dynamic spherical cavity expansion problem
AU - Yu, Xuemei
AU - Cheng, Wei
AU - Wu, Shuang
PY - 2012
Y1 - 2012
N2 - The deformation of dynamic damage in a pressure-sensitivity media was investigated by means of spherical cavity expansion model. By constructing a three region model of spherical cavity, dynamic solutions with damage and elastic area was investigated when distortion was so small that no plastic area arisen (cavity expansion rate is generally less than 0.4). Firstly, by elastic and damage mechanics, the continuous conditions in the damage region were given. Secondly, the governing equations and analytical solutions of the damage region were deduced. Finally, numerical solutions were obtained by shooting method. The result shows that some material parameters such as damage index and Poisson ratio have significant effects on the range and field quantities of damage region.
AB - The deformation of dynamic damage in a pressure-sensitivity media was investigated by means of spherical cavity expansion model. By constructing a three region model of spherical cavity, dynamic solutions with damage and elastic area was investigated when distortion was so small that no plastic area arisen (cavity expansion rate is generally less than 0.4). Firstly, by elastic and damage mechanics, the continuous conditions in the damage region were given. Secondly, the governing equations and analytical solutions of the damage region were deduced. Finally, numerical solutions were obtained by shooting method. The result shows that some material parameters such as damage index and Poisson ratio have significant effects on the range and field quantities of damage region.
KW - Damage mechanics
KW - Self-similar hypothesis
KW - Shooting method
KW - Spherical cavity expansion
UR - https://www.scopus.com/pages/publications/83655164061
U2 - 10.4028/www.scientific.net/AMR.382.247
DO - 10.4028/www.scientific.net/AMR.382.247
M3 - 会议稿件
AN - SCOPUS:83655164061
SN - 9783037852996
T3 - Advanced Materials Research
SP - 247
EP - 251
BT - Advanced Research on Advanced Structure, Materials and Engineering, ASME 2011
T2 - 2011 International Conference on Advanced Research on Advanced Structure, Materials and Engineering, ASME 2011
Y2 - 24 December 2011 through 25 December 2011
ER -