Evaluasi metode inspeksi non-destruktif ultrasonik untuk penilaian integritas struktural gandar kereta barang

Penulis

DOI:

https://doi.org/10.37367/jpi.v8i2.344

Kata Kunci:

Penilaian integritas struktur, Inspeksi ultrasonic tak-merusak, Analisis toleransi kerusakan

Abstrak

Penilaian integritas struktural bertujuan untuk memastikan kepatuhan terhadap standar keselamatan, kekuatan, dan kinerja yang ditentukan. Penilaian ini beroperasi berdasarkan prinsip toleransi kerusakan, memastikan bahwa kegagalan dapat dihindari selama struktur tetap berada dalam kapasitas penahan bebannya, meskipun terdapat cacat atau retakan, sesuai dengan kriteria mekanika retakan. Dengan menggabungkan probabilitas deteksi dari prosedur non-destructive inspections (NDI), konsep toleransi kerusakan memastikan keamanan gandar selama operasi. Studi ini menguji sensitivitas metode NDI dalam mendeteksi kerusakan dan membandingkan hasilnya dengan kriteria penilaian integritas struktural yang diuraikan dalam BS 7910.

Untuk mendapatkan hasil analisis yang akurat, penelitian ini menggunakan simulasi numerik dengan metode elemen hingga menggunakan perangkat lunak ANSYS. Hasilnya menunjukkan bahwa ukuran cacat kritis adalah 80 mm sesuai dengan kriteria yang ditentukan dalam BS7910. Selain itu, analisis sensitivitas NDI menunjukkan bahwa NDI dapat mendeteksi ukuran cacat terkecil sebesar 4 mm, meskipun dengan pulsa indikasi yang sangat rendah, dan dapat mendeteksi cacat dengan pulsa deteksi yang cukup baik pada ukuran cacat 10 mm.

Unduhan

Data unduhan tidak tersedia.

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Diterbitkan

2024-10-31

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Artikel

Cara Mengutip

Maulana, I., Kariem, M. A., & Ramdan, R. D. (2024). Evaluasi metode inspeksi non-destruktif ultrasonik untuk penilaian integritas struktural gandar kereta barang. Jurnal Perkeretaapian Indonesia (Indonesian Railway Journal), 8(2), 41-49. https://doi.org/10.37367/jpi.v8i2.344

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