Perbandingan Hasil Pengujian Mekanik Geometry Interlock Pada Produk 3d Printing Melalui Simulasi Fem Dan Validasi Eksperimen

Rizqullah, Muhammad Rifqi (2025) Perbandingan Hasil Pengujian Mekanik Geometry Interlock Pada Produk 3d Printing Melalui Simulasi Fem Dan Validasi Eksperimen. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Additive Manufacturing (AM) menawarkan kemampuan untuk mencetak bentuk geometri yang kompleks secara efisien, termasuk desain sambungan interlock yang bertujuan meningkatkan kekuatan mekanis serta menghemat material. Dalam penelitian ini, tiga jenis sambungan interlock berbahan PLA yakni T-shape, Dovetail, dan Jigsaw dikaji melalui uji tarik eksperimental dan simulasi berbasis Finite Element Method (FEM) menggunakan software ANSYS 2025 R1. Spesimen dicetak dengan metode Fused Deposition Modeling (FDM) dan diuji tarik sesuai standar, lalu hasil gaya maksimum digunakan sebagai input pembebanan pada simulasi FEM. Hasil uji tarik menunjukkan bahwa sambungan Dovetail memiliki kekuatan tarik tertinggi, dengan nilai rata-rata 28,9 MPa. Sementara Jigsaw menunjukkan performa sedang, dan T-shape menghasilkan nilai terendah dengan rata-rata 13,26 MPa. Simulasi FEM memperkuat temuan tersebut, dengan distribusi tegangan yang paling merata pada geometri Dovetail, sedangkan Jigsaw mengalami konsentrasi tegangan pada lekukan dan T-shape menunjukkan distribusi yang tidak optimal. Perbandingan antara hasil simulasi dan eksperimen menunjukkan pola performa antar geometri yang serupa, meskipun nilai absolutnya berbeda akibat asumsi material homogen dan kondisi ideal dalam simulasi. Analisis statistik ANOVA juga mengonfirmasi bahwa bentuk geometri memiliki pengaruh signifikan terhadap kekuatan tarik (p < 0,05). Kesimpulan dari penelitian ini menegaskan bahwa kombinasi pendekatan eksperimental dan simulasi numerik dapat memberikan pemahaman yang lebih mendalam tentang kinerja sambungan interlock, sekaligus menjadi acuan dalam mengembangkan desain yang lebih kuat dan efisien untuk aplikasi cetak 3D ke depannya
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Additive Manufacturing (AM) offers the ability to produce complex geometries efficiently, including interlocking joint designs aimed at improving mechanical strength and reducing material usage. This study evaluates three types of PLA based interlock geometries T-shape, Dovetail, and Jigsaw through experimental tensile testing and Finite Element Method (FEM) simulation using ANSYS 2025 R1. The specimens were fabricated using Fused Deposition Modeling (FDM) and tested under tensile loads according to standard procedures. The maximum forces obtained from the tests were then applied as input loads in the FEM simulations. The experimental results showed that the Dovetail joint delivered the highest tensile strength, with an average of 28.9 MPa. Jigsaw showed moderate performance, while T-shape had the lowest strength with an average of 13.26 MPa. FEM simulations supported these findings, showing the most uniform stress distribution in the Dovetail geometry, while Jigsaw exhibited stress concentration around its curved sections, and T-shape displayed less effective stress spread. Although numerical values differed due to idealized conditions in the simulation, the overall performance trends across geometries remained consistent with experimental outcomes. Statistical analysis using ANOVA confirmed that joint geometry significantly influences tensile strength (p < 0.05). This research concludes that combining FEM simulations with physical testing provides a comprehensive understanding of interlock performance and serves as a foundation for optimizing interlock designs in future 3D-printed applications. performance and can guide the optimization of 3D printed component design.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Additive Manufacturing, Sambungan Interlocking, Finite Element Method, Ansys, Uji Tarik, Tensile Test
Subjects:	T Technology > T Technology (General) > T57.62 Simulation T Technology > TA Engineering (General). Civil engineering (General) > TA347 Finite Element Method T Technology > TA Engineering (General). Civil engineering (General) > TA418.16 Materials--Testing.
Divisions:	Faculty of Vocational
Depositing User:	Muhammad Rifqi Rizqullah
Date Deposited:	06 Aug 2025 02:19
Last Modified:	06 Aug 2025 02:19
URI:	http://repository.its.ac.id/id/eprint/127648

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