IMECH-IR  > 流固耦合系统力学重点实验室
A damage identification method based on differential gradient of normalized strain
Lu LL(路玲玲); Huang CG(黄晨光); Wang X(王曦)
Source PublicationApplied mechanics and materials
2013
Pages321-330
Conference Name2nd International Conference on Materials Engineering and Automatic Control, ICMEAC 2013
Conference DateMay 18, 2013 - May 19, 2013
Conference PlaceShandong, China
AbstractA damage identification method based on differential gradient of normalized strain (DGNS) is presented to overcome the disadvantages of traditional static damage identification, such as the complicacy of measurement system and the limited measurement points etc. Two numerical simulations were conducted on a dog-bone specimen to verify the feasibility of the method. In the experiment, differential of strain contour density (DSCD), which has the same physical meaning with DGNS,significantly improves the smoothness and visualization of field information. Both the simulation and experiment results show that, DGNS (DSCD) is capable of describing the structural damage property meanwhile effectively isolates the damaged areas from regions with inhomogeneous deformation due to geometric inhomogeneity. Moreover, DGNS (DSCD) is a structural intrinsic parameter, and independent on external loads.
DepartmentLMFS冲击与耦合效应(LHO)
ISBN9783037857250
Indexed ByEI
Language英语
Citation statistics
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/58437
Collection流固耦合系统力学重点实验室
Recommended Citation
GB/T 7714
Lu LL,Huang CG,Wang X. A damage identification method based on differential gradient of normalized strain[C]Applied mechanics and materials,2013:321-330.
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