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Effect of build orientation on FDM parts: a case study for validation of deformation behaviour by FEA

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Some parts produced using additive layer technologies (ALT) show non-regular material properties when a force is applied to the part. This difference in properties can be attributed to the orientation in which the part is built. The research in this paper presents a comparison of material property data taken from physical tests performed on fused deposition modelling (FDM) parts built in different orientations, against simulated testing using finite element analysis (FEA). The research uses the design of a simple specimen as a test model for the study for which both a digital and physical model are produced and tested. The test is conducted to investigate deformation behaviour of sample FDM parts
manufactured in different orientations and verify that FEA analysis can be utilised for design verification of FDM parts. This work contributes to further research
into development of rapid manufacturing (RM) computer aided design (CAD) tools, specifically design analysis and verification tools for RM materials.