Mechanochromic Suction Cups for Local Stress Detection in Soft Robotics

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Advancements in smart soft materials are enhancing the capabilities of robotic manipulators in object interactions and complex tasks. Mechanochromic materials, acting as lightweight sensors, offer easily interpretable visual feedback for localized stress detection, structural health monitoring, and energy‐efficient robotic skins. Herein, an innovative mechanochromic soft end‐effector capable of discerning local contact stresses during mechanical interactions with objects is presented and their relative position is ascertained. This system utilizes a reversible force‐induced color switch in a thin layer of spiropyran‐functionalized polydimethylsiloxane, which coats a silicone‐made suction cup. The mechanochromic suction cup is integrated with a 3D‐printed compact load‐transferring system and electronic color‐changing detection elements. The assembly may serve as a synthetic receptor for robotic actuators, discerning localized interaction forces down to 3 N. The system's resilience to varying environmental factors, including illumination, tilting, and interaction with objects of various shapes is verified. The results indicate potential for exteroceptive solutions in reconfigurable manipulation tasks without compromising the overall softness of the manipulator.

Location: Deutsche Nationalbibliothek Frankfurt am Main

Extent: Online-Ressource

Language: Englisch

Bibliographic citation: Mechanochromic Suction Cups for Local Stress Detection in Soft Robotics ; day:19 ; month:09 ; year:2024 ; extent:18
Advanced intelligent systems ; (19.09.2024) (gesamt 18)

Creator: Giordano, Goffredo
Scharff, Rob Bernardus Nicolaas
Carlotti, Marco
Gagliardi, Mariacristina
Filippeschi, Carlo
Mondini, Alessio
Papangelo, Antonio
Mazzolai, Barbara

DOI: 10.1002/aisy.202400254

URN: urn:nbn:de:101:1-2409201411354.745181197895

Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.

Last update: 15.08.2025, 7:26 AM CEST

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Associated

Giordano, Goffredo
Scharff, Rob Bernardus Nicolaas
Carlotti, Marco
Gagliardi, Mariacristina
Filippeschi, Carlo
Mondini, Alessio
Papangelo, Antonio
Mazzolai, Barbara

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