Investigation of Compressive Stresses of Stainless Steel 316L Diamond Lattice Structures Under the Effect of Spherical Connections Produced by SLM Additive Manufacturing

ADMT Journal

مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 21 دی 1402

نوع مقاله: Original Article

شناسه دیجیتال (DOI): 10.30486/admt.2024.1966579.1377

نویسندگان

Behnam Ahmadi Roozbahani¹؛ AliAkbar Lotfi Neyestanak^{* 2}

¹Department of Mechanical Engineering, Shahr-e-Qods Branch. Islamic Azad University, Tehran, Iran Mapna Group, TUGA, Tehran, Iran E-mail: [e-mail]

²Department of Mechanical Engineering, Yadegar-e-Imam Khomeini (RAH), Shahr-e-Ray Branch. Islamic Azad University, Tehran, Iran E-mail: [e-mail]

چکیده

In this study, the compressive stresses of dodecahedron diamond lattice structures have been investigated. The finite element method has been used for Stress analysis. After the simulation, it was found that more stresses are applied at the junction of the struts of this structure due to the application of compressive force. For this purpose, the connection point of the structure’s struts was strengthened by spherical connections, and a new type of dodecahedron structure was created. The validation and effect of spherical connections in compressive stresses have been evaluated experimentally. Two types of diamond lattice structures are made of stainless steel 316L by the SLM method. The results show that in the same condition, the use of spherical connections with twice the diameter of the structure’s struts helps to strengthen the structure and increase its compressive strength by 18% compared to the simple structure.

کلیدواژه‌ها

Lattice structures؛ Compressive Stresses؛ Spherical Connections؛ Stainless steel 316L؛ Additive Manufacturing