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Table 4 Summary comparison table of performance metrics

From: Failure Mechanisms and Rehabilitation Scenarios for Concrete Hydroelectric Facilities Affected by Alkali–Aggregate Reaction

Performance metric

Advantages

Disadvantages

Displacement field

- Can be used even with linear fe analyses

- Simple to use and interpret

- Quantitative

- Does not provide a pertinent information on the crack extent and potential failure mechanisms

Damage pattern

- Can be used to detect potential failure mechanisms

- Suitable for nonlinear fe analyses

- Nonlinear FE expertise required

- Expert engineering judgement is required to detect potential failure mechanisms

- A well refined mesh and a validated constitutive model are required

New suggested TCW metric

- Suitable for nonlinear fe analyses

- Quantitative

- Can be used at local or global scale of facility

- Nonlinear FE expertise required

- Can give information on potential failure mechanisms but expert judgement is still required