With reference to their spatial disposition, strain sensors are classified as discrete (point) sensors or as distributed (continuous) sensors. With respect to the gauge length, the discrete sensors are conventionally classified in two groups: short-gauge and long-gauge sensors. Depending on the chosen sensor type the monitoring is performed at local material, global structural, or global integrity level.
The research at SHM lab deals with the following topics: interpretation of measurements depending on type of sensor, strain distribution, and construction material; design of monitoring strategies, design of sensor networks, and evaluation of their performance, depending on sensor type, monitoring requirements, existence of structural models (model-driven approach with sensor network based on structural analysis or model-free approach based on "random" distribution of sensors), and schedule of monitoring (static, dynamic, combined); evaluation of reliability in achieving the aims of monitoring.
The following projects are related to above listed topics: Streicker Bridge Monitoring, Pipelines Health Assessment, and Wayne Bridge (US202/NJ23) Monitoring.