Effect of pore architecture of 3D printed open porosity cellular structures on their resistance to mechanical loading. Part I, Experimental studies

• Autorzy: Bernacka Monika , Aladag Mehmet , Dubicki Adrian , Zgłobicka Izabela

Identyfikatory

DOI

10.2478/ama-2024-0046

• Języki publikacji: EN

Abstrakty

EN

The development of additive manufacturing (AM) techniques has sparked interest in porous structures that can be customized in terms of size, shape, and arrangement of pores. Porous lattice structure (LS, called also lattice struct) offer superior specific stiffness and strength, making them ideal components for lightweight products with energy absorption and heat transfer capabilities. They find applications in industries such as aerospace, aeronautics, automotive, and bone ingrowth applications. One of the main advantages of additive manufacturing is the freedom of design, control over geometry and architecture, cost and time savings, waste reduction, and product customization. However, the designation of appropriate struct/pore geometry to achieve the desired properties and structure remains a challenge. In this part of the study, five lattice structs with various pore sizes, with two volume fractions for each, and shapes (ellipsoidal, helical, X-shape, trapezoidal, and triangular) were designed and manufactured using selective laser sintering (SLS) additive manufacturing technology. Mechanical properties were tested through uniaxial compression, and the apparent stress-strain curves were analyzed. The results showed that the compression tests revealed both monotonic and non-monotonic stress-strain curves, indicating different compression behaviors among the structures. The helical structure exhibited the highest resistance to compression, while other structures showed similarities in their mechanical properties. In Part II of this study provides a comprehensive analysis of these findings, emphasizing the potential of purpose-designed porous structures for various engineering applications.

Słowa kluczowe

EN

Additive manufacturing; AM; porous structures; lattice structs; selective laser sintering; mechanical properties

• Wydawca: Oficyna Wydawnicza Politechniki Białostockiej
• Czasopismo: Acta Mechanica et Automatica
• Rocznik: 2024
• Tom: Vol. 18, no. 3
• Strony: 419--426
• Opis fizyczny: Bibliogr. 28 poz., rys., tab., wykr.

Twórcy

autor

Bernacka Monika

• Faculty of Mechanical Engineering, Bialystok University of Technology, Wiejska 45C, 15-351 Bialystok
• Technology Applied Sp. z o.o., Wiejska 42/3, 15-509 Sobolewo, Poland

• https://orcid.org/0000-0003-3481-0768

autor

Aladag Mehmet

• Faculty of Mechanical Engineering, Bialystok University of Technology, Wiejska 45C, 15-351 Bialystok

• https://orcid.org/0000-0002-2484-7519

autor

Dubicki Adrian

• Faculty of Mechanical Engineering, Bialystok University of Technology, Wiejska 45C, 15-351 Bialystok

• https://orcid.org/0000-0002-3994-2957

autor

Zgłobicka Izabela

• Faculty of Mechanical Engineering, Bialystok University of Technology, Wiejska 45C, 15-351 Bialystok

• https://orcid.org/0000-0002-4432-9196

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