There are several VDI guidelines about bionic related topics on the VDI-webpage.
The Papers are:
VDI 6221 Blatt 1
Biomimetics – Biomimetic surfaces
VDI 6222 Blatt 1
Biomimetics – Biomimetic robots
VDI 6223 Blatt 1
Biomimetics – Biomimetic materials, structures and components
VDI 6224 Blatt 1
Biomimetic optimization – Application of evolutionary algorithms
VDI 6224 Blatt 3
Biomimetics – Integrated product development process for biomimetic optimization
VDI 6225 Blatt 1
Biomimetics – Biomimetic information processing
VDI 6226 Blatt 1
Biomimetics – Architecture, civil engineering, industrial design, basic principles
Sources:
https://www.vdi.de