A material dynamically enhancing both load-bearing and energy dissipation capability under cyclic loading

• DOI: 10.1126/sciadv.adt3979
• Publication Date: 2025-02-07T18:58:26Z
• Authors: Bohan Sun; Grant Kitchen; Dongjing He; Deep K. Malu; Jitao Ding; Yiji Huang; Adebayo Eisape; Mostafa M. Omar; Yuhang Hu; Sung Hoon Kang
• Keywords: Embodied Energy; Cyclic stress; Load bearing

Material properties gradually degrade under cyclic loading, leading to catastrophic failure. It results in large costs for inspection, maintenance, and downtime. Besides, materials require combinations of performance such as load bearing energy dissipation. However, improving one a material often sacrifices another performance, making it difficult create with optimal profiles. Here we report liquid-infused porous piezoelectric scaffold (LIPPS) that simultaneously enhances its load-bearing dissipation capability loading. For example, after 12 million loading cycles, LIPPS increases modulus by 3600% hysteresis 3000%. From CT study, this behavior is attributed the self-recoverable mineralization mechanical Moreover, shows reprogrammable stiffness distribution based on distribution, which enables generate multiple shapes self-folding. Our findings can contribute toward unprecedented opportunities soft robotics, vehicles, infrastructure, tissue engineering new paradigm selection improved resilience sustainability.