Biegbare

Biegbare is a term used in materials science to describe materials that are designed to be bendable while maintaining structural integrity under repeated bending. The word is a neologism formed from the common root related to bending in Germanic languages and the suffix -bare, indicating capability. It is not tied to a single standard, but is used in theoretical and applied contexts to denote materials with favorable bend fatigue performance.

In practice, biegbare materials exhibit high resistance to crack initiation under bending, low permanent deformation after cycles, and tunable stiffness to balance flexibility and load-bearing capacity. Their microstructure can combine flexible polymer matrices with reinforcing elements such as fibers or porous architectures, enabling energy absorption and repeated bending without failure. Mechanical properties are often characterized by flexural fatigue life, bending radius, and the onset of irreversible deformation.

Applications of biegbare materials span flexible electronics, soft robotics, wearable devices, and foldable structures where components must be bent repeatedly. Researchers emphasize the trade-offs between bendability, strength, weight, and environmental stability.

Limitations include variability with temperature, humidity, and long-term aging, as well as challenges in scalable manufacturing and standardization of testing protocols. As a concept, biegbare remains broader than a single material class, serving as an orientation for designing systems that require repeated bendability.

See also: ductility, elasticity, flexural fatigue, bend radius, flexible electronics.