Experimental prediction of CPVC polymer damage using energy approaches

This work examines the mechanical behavior of chlorinated PVC (CPVC) and predicts its damage evolution. Tensile tests were conducted on CPVC samples at various temperatures (− 10 to 90 °C) to understand their behavior. Two models were established: one based on a modified version of the unified theory and the second one based on a static damage approach with trapezoidal numerical integration to analyze the area under the tensile curve for each test. The obtained results provide valuable insights into the mechanical behavior of CPVC and the prediction of damage evolution. This information facilitates the identification of three distinct damage stages, which can then be used to establish appropriate maintenance intervals and ensure the material’s safe operation.