Anti-plane eigenstrain problem of an inclusion of arbitrary shape in an anisotropic bimaterial with a semi-infinite interface crack

作者：Wang, Xu; Schiavone, Peter^*

来源：Continuum Mechanics and Thermodynamics, 2019, 31(1): 71-77.

DOI：10.1007/s00161-018-0630-1

• Eshelby inclusion
• Interface crack
• Anisotropic bimaterial
• Conformal mapping
• Analytic continuation

We consider an Eshelby inclusion of arbitrary shape with uniform anti-plane eigenstrains embedded in one of two bonded dissimilar anisotropic half planes containing a semi-infinite interface crack situated along the negative real axis. Using two consecutive conformal mappings, the upper and lower halves of the physical plane are first mapped onto two separate quarters of the image plane. The corresponding boundary value problem is then analyzed in this image plane rather than in the original physical plane. Corresponding analytic functions in all three phases of the composite are derived via the construction of an auxiliary function and repeated application of analytic continuation across the real and imaginary axes in the image plane. As a result, the local stress intensity factor is then obtained explicitly. Perhaps most interestingly, we find that the satisfaction of a particular condition makes the inclusion (stress) invisible to the crack.

• 出版日期2019-1
• 单位华东理工大学