Based on the unique additive manufacturing process, a dual-notch void model is proposed to explain three tensile strengths of a 3D printed polymer along three major directions. This model incorporates the strength/notch angle relation and provides a relative magnitude of three tensile strengths, i.e., Sx (axial strength) > Sy (transverse strength) ≥ Sz (inter-layer strength).
Dual-Notch Void Model to Explain the Anisotropic Strengths of 3D Printed Polymers
Contributed by the Materials Division of ASME for publication in the Journal of Engineering Materials and Technology. Manuscript received March 20, 2019; final manuscript received July 18, 2019; published online August 1, 2019. Assoc. Editor: Curt Bronkhorst.
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Roy Xu, L., and Leguillon, D. (August 1, 2019). "Dual-Notch Void Model to Explain the Anisotropic Strengths of 3D Printed Polymers." ASME. J. Eng. Mater. Technol. January 2020; 142(1): 014501. https://doi.org/10.1115/1.4044282
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