mat
iene
= ∏∫² ( ⋅ ∇ ) iw ie
= 1iw
ie
Σ =∇The Eshelby stress (Σ) is introduced in small-strain elasticity as:
j j j j j j= − ∇∇== j=
=In finite strain elasticity, the Eshelby stress yields:
= −=0=
0 =In the following figure, the directions of e 1 and e 2 correspond to the local coordinate system at the
crack tip:
Figure 11.12: Domain Enhancement via Nodal Vectors
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