Soft Robotic Arms: Smart Composites, Biomimetic Design, Tunable Stiffness, and Intelligent Actuation

Some of the factors that limit the movements of conventional robotic arms include flexibility, adaptability, and dexterity as their parts are constructed using rigid mechanical components. Rigid robotic arms are heavier and consume high power, limiting their applications as mobile and collaborative robots. Natural human arm and hand movements comprise multi-joint coordination, dynamic stiffness control, proprioception and tactile feedback, making them challenging to replicate using rigid robotic systems. On the other hand, human hands accomplish exceptional efficiency via passive compliance and muscle antagonism permitting effortless energy saving motions that feel challenging for rigid robots to deliver. Intelligent materials and material driven actuation open the feasibilities of new possibilities of innovative design patterns to accomplish softness, adaptability, embedded sensing and variable stiffness. These materials facilitate lightweighted designs leading to faster and more precise motions without the involvement of heavy motors. Some of the emerging smart materials include shape memory alloys, electroactive polymers, and self-healing materials (including dielectric elastomers).The primary goal is to motivate research that bridges biomechanics, material science, soft robotics, and sensor integration to design and develop soft robotic arms with anthropoid motion competency soft robotic arms with bio-inspired motion capabilities. The Research Topic’s main aim is to overcome the present constraints, such as fine-motor control, dexterity, range of motion, and task adaptability, in rigid robotic systems. The primary focus is on hybrid soft-rigid structures, tunable stiffness actuation, energy-efficient, embedded neuromorphic sensing, and intelligent actuators promoting advances in design, modelling, fabrication, control strategies, and real-world testing of smart and responsive material-based humanoid robotic arms soft robotic arms. The Topic attempts to explore self-sustaining and self-healing materials that enhance reliability and long-term durability for industrial and clinical applications. We look forward to novelty in actuation principles, interdisciplinary system integration, biomimetic anatomical structures, and AI-based control learning. The aim is to design and develop next-gen soft robotic arms that can perform surgery with accuracy, handle fragile objects, and operate autonomously in dangerous environments.This Research Topic investigates the synthesis of smart composites and materials to facilitate natural, bio-inspired movements in soft robotic arms accentuating material innovations strengthening adaptability, flexibility and sensory capabilities. The key themes are:• Synthesizing neuromorphic systems and embedded sensors for proprioception, tactile feedback and energy-efficient actuation.• Development and characterization of tunable stiffness mechanisms via dielectric elastomers and electroactive polymers for dynamic motion control.• Biomechanical modeling and simulation of bio-inspired arm motions facilitated by smart composites.• Applications of self-healing materials in hybrid robotic structures for enhanced range of motion and durability.• Case reports on real-world implementations including, assistive devices, prosthetics, industrial robotics emphasizing challenges in safety and scalability.We invite review articles, original research articles, methods descriptions, and case studies that advance these areas ahead advance these areas. Contributions are expected to center on theoretical frameworks, experimental validations, or interdisciplinary approaches integrating material science and robotics. Topic editors: Jun Shintake, Egidio Falotico Source: https://www.frontiersin.org/research-topics/76662/soft-robotic-arms-smart-composites-biomimetic-design-tunable-stiffness-and-intelligent-actuation