Strain measurement techniques

Strain measurement techniques assess how materials deform under stress, indicating their strength and durability. Common methods include strain gauges, which are tiny sensors attached to the material that change resistance when stretched or compressed, allowing for precise measurement. Other techniques involve optical methods like Digital Image Correlation (DIC), where high-resolution cameras track surface deformation patterns, or fiber optic sensors that use light signals to detect strain. These methods help engineers monitor structural integrity in applications like bridges, aircraft, and machinery, ensuring safety and performance by accurately quantifying how materials respond to loads.