Fraunhofer Institute for Applied Polymer Research

Design of a Multistable Finger Prosthesis with Programmable Metamaterials

Shape change, as well as the ability to hold specific deformation, is a main requirement for finger prostheses. Currently, these functionalities are realized by screwed hinges with latching elements. To avoid the assembly process and increase the sustainability a non-assembly, 3D...

Simulation of Locally Varying Residual Strains in 4D Printing

ABSTRACT Shape memory polymers (SMPs) are a class of materials capable of storing deformation in a programmed shape, which can be recovered when an external trigger, such as temperature, a magnetic field, or similar is applied. In the classical shape memory cycle, programming con...