Exploration of the influence of different biomimetic designs of 3D printed multi-material artificial spinal disc on the natural mechanics restoration

•Four 3D printed artificial spinal disc designs show nature-mimicking viscoelastic load response.•The four designs also show comparable instant helical axis and center of rotation to a natural disc.•Designs that mimic the structure found in a natural disc have big potential for natural mechanics restoration.•Design with a chainmail-like structure exhibits nature-mimicking nonlinear rotational load response.