TY - JOUR

T1 - Crack tunneling and plane-strain delamination in layered solids

AU - Suiker, A.S.J.

AU - Fleck, N.A.

PY - 2004

Y1 - 2004

N2 - Steady-state tunneling and plane-strain delamination of an H-shape crack are examined for elastic, isotropic multi-layers. Both tunneling and delamination are analysed by employing linear elastic fracture mechanics within a 2D finite element framework. Failure maps are produced to reveal the sensitivity of cracking path to the relative toughness of layer and interface, and to the stiffness mismatch of layers. Closed-form expressions are derived for the critical stress level for steady-state plane-strain delamination. By means of a comparison with experimental results taken from the literature, it is demonstrated that these expressions serve as useful design criteria for elastic multilayers. © 2004 Kluwer Academic Publishers.

AB - Steady-state tunneling and plane-strain delamination of an H-shape crack are examined for elastic, isotropic multi-layers. Both tunneling and delamination are analysed by employing linear elastic fracture mechanics within a 2D finite element framework. Failure maps are produced to reveal the sensitivity of cracking path to the relative toughness of layer and interface, and to the stiffness mismatch of layers. Closed-form expressions are derived for the critical stress level for steady-state plane-strain delamination. By means of a comparison with experimental results taken from the literature, it is demonstrated that these expressions serve as useful design criteria for elastic multilayers. © 2004 Kluwer Academic Publishers.

U2 - 10.1023/B:FRAC.0000021064.52949.e2

DO - 10.1023/B:FRAC.0000021064.52949.e2

M3 - Article

VL - 125

SP - 1

EP - 32

JO - International Journal of Fracture

JF - International Journal of Fracture

SN - 0376-9429

IS - 1-2

ER -