Bending

Related papers: 20

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Bending refers to the mechanical deformation of a material or structure in which one surface is placed under tension while the opposing surface experiences compression, causing curvature along the object's length. In robotics and AI, bending is fundamental to the design and operation of soft actuators, flexible sensors, and shape-morphing structures. Pneumatic rubber actuators, fiber-reinforced elastomeric fingers, and hydrogel-based manipulators all exploit controlled bending to achieve compliant, biomimetic motion suited for grasping, locomotion, and rehabilitation devices. Flexible and wearable sensors similarly exploit bending-induced changes in electrical resistance, capacitance, or piezoelectric output to detect joint angles, gestures, and tactile stimuli. Stimulus-responsive materials—including ionic polymer-metal composites, temperature-sensitive hydrogels, and magnetically programmed films—generate bending through asymmetric swelling, thermal gradients, or field-driven deformation, enabling untethered actuation at small scales. Understanding and modeling bending behavior is therefore essential for designing safe human-robot interaction systems, surgical tools, prosthetics, and miniature robots that must navigate complex, unstructured environments with flexibility and precision.

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