Numerical and experimental study for FDM printed specimens from PLA under IZOD impact tests. (2023)

• Record Type: Journal Article
• Authors: Popa, Cosmin Florin; Krausz, Tamas; Galatanu, Sergiu-Valentin; Linul, Emanoil; Marsavina, Liviu
• Is Part Of: Materials today. Volume 78(2023)Part 2
• Page Start: 326
• Page End: 330
• Publication Date: 2023
• Subjects: Fused deposition modeling -- Polylactic acid -- Finite element analysis -- IZOD tests; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2022.11.501
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: Additive manufacturing (AM) is a process that can achieve many parts with complex features in the production. The most important aspect of AM is that there is no material wastage, which reduces costs. The benefits of AM have been noticed and the process is now being used in many fields like in medicine, in automotive, in aircraft, etc. Additive manufacturing materials can be tested by stretching, Charpy or Izod impact, bending, shearing, etc. For plastics, the most widely used process for impact testing is Izod. Prusa MK3 printer was used for the manufacturing of the specimens from polylactic acid (PLA). The specimens were tested with the CEAST 9050 pendulum impact system, according to the ISO 180:2000 standard. The numerical modeling of the experimental measurements has been done with the ANSYS finite element software's explicit module, called LS-DYNA. A good correlation between the numerical model and experimental tests was observed.