Table 2.

Determined constitutive material parameters for the hydrogel matrix and for the fibre scaffold used for the numerical analysis. Membrane properties were defined according to the local coordinate system (see Fig. 2B).

Component	Material	Material properties	Constitutive material properties
Continuum FE
Hydrogel matrix	GelMA	Neo Hookean hyperelastic	C10 = 0.00135 MPa; D1 = 30 MPa-1
Fibre scaffold	PCL	Square boxes
		Linear elastic orthotropic membranes	E1 = 182 MPa; E2 = 0.06 MPa; υ12 = 0.43; G12 = 0.88 MPa; G13 = 0.91 MPa; G23 = 1E10–7 MPa
		Interconnections	E int = 3 MPa
		Linear elastic	(Loaded cross section area 1.35E10–4 mm2)
Micro FE
Hydrogel matrix	GelMa	Linear elastic	Egel = 0.0082 MPa; υgel = 0.49
Fibre scaffold	PCL		Efib scaff = 0.057 MPa; υfib scaff = 0.3