Indexed by:会议论文

First Author:Wang, Z.

Co-author:Yang, Q.

Date of Publication:2010-01-01

Included Journals:CPCI-S

Document Type:A

Page Number:421-426

Abstract:The effects of the stress intensity factor K(I) and K(II) on the all components of strains at the crack tip are analyzed by the non-local theories based on different types of weighted functions. The non-local strain will be considerably reduced. The larger the internal length scale is, the more significant the reduction of non-local strain with respect to the local strain predicted conventionally will be. The size of non-local strain field with the bell-shaped weighted functions is larger than that obtained by either Green's or Gaussian weighted functions. The non-local normal stress-strain components depends on the stress intensity factor K(I) and K(II), the circumferential stress is related to the stress intensity factor K(I) As the distance of the point and crack tip increases, the non-local strain gets to decrease strongly, then it gets to increase and arrives to the biggest value, Finally, The non-local normal stress-strain gets to decrease.

Translation or Not:no