Scalable Elasticoluminescent Strain Sensor for Precise Dynamic Stress Imaging and Onsite Infrastructure Diagnosis

Precise dynamic stress/strain imaging is critical for a broad range of research and engineering analyses ranging from micrometer to meter-scales, but there is no precise multiscale strain sensor, especially for onsite real-time structural health monitoring. Here, a scalable elasticoluminescent strain sensor is presented for solving worldwide structural diagnosis problems ranging from micrometer to meter-scales. Significant progress has recently been made on both highly sensitive elasticoluminescent sensors and quantitative evaluations in dynamic stress/strain imaging. The precise dynamic imaging of stress/strain and onsite fracture inspection and danger-level (stress concentration) diagnoses on large-scale infrastructures are demonstrated. The innovative scalable strain sensor would prospectively open a new era in multiscale strain imaging research and contribute to multifield research related precise dynamic stress/strain imaging and healthcare of structures.