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Table 9 Degree of multiaxiality h, critical value of total strain ε ertr and factor \( \left(\sqrt{E{\varepsilon}_{e rtr}/{R}_e}\right) \)

From: Mechanical strength assessment of a drilled hole in the contralateral cortex at the end of the open wedge for high tibial osteotomy

Cases

Specimens

2D FEA

3D FEA

h

ε ertr [%]

\( \sqrt{E{\varepsilon}_{e rtr}/{R}_e} \)

h

ε ertr [%]

\( \sqrt{E{\varepsilon}_{e rtr}/{R}_e} \)

H

SNH

0.33

1.2

1.36

0.47

0.8

1.1

SWHE

0.33

1.2

1.36

0.46

0.8

1.1

SWHA

0.33

1.2

1.36

0.46

0.8

1.1

M

SNH

0.33

1.5

1.61

0.47

0.8

1.17

SWHE

0.33

1.5

1.61

0.46

0.8

1.2

SWHA

0.33

1.5

1.61

0.46

0.8

1.19

L

SNH

0.33

0.6

1.07

0.47

0.5

1

SWHE

0.33

0.6

1.07

0.46

0.5

1.01

SWHA

0.33

0.6

1.07

0.46

0.5

1.01

  1. These values were obtained for the cortical bone considered as semi-ductile material for 2D and 3D FEA