Final answer:
A rectangular strain gage rosette is used to measure strains on the free surface of a titanium alloy part. The strains on two of the rosette's arms, εᴬ and εᴮ, are measured as 2200 με and 1500 με respectively. These strain measurements provide information about the mechanical behavior and stress distribution in the titanium alloy part.
Step-by-step explanation:
When a rectangular strain gage rosette is employed to measure strains on the free surface of a titanium alloy part, the strains are represented by different components, typically labeled as A, B, and C. In this case, εᴬ and εᴮ are the strains measured by two of the rosette's arms.
For example, if εᴬ = 2200 με and εᴮ = 1500 με, it means that the strain measured by arm A is 2200 με (microstrain) and the strain measured by arm B is 1500 με.
These strain measurements can be used to analyze the mechanical behavior and stress distribution in the titanium alloy part.