On the combined use of averaged strain energy density criteria (ASED) and equivalent material concept (ECC) for the fracture load prediction of additively manufactured PLA v-notched specimens

The growing introduction into the industrial world of additive fused deposition technologies, for producing functional components made of thermoplastic materials (such as PLA), pushes designers to know which methods for predicting breakage under load can be used to design correctly these elements. In particular, this paper analyses the “brittle fracture” phenomenon in these materials that too often occurs in various engineering sectors. This research article investigates a methodology for predicting fracture loads in additively manufactured PLA material specimens with different topologies of V-notches.