Article Per Year (5 Year)
p-Index From 2021 - 2026
0
P-Index
This Author published in this journals
All Journal TEKNIK Mesin Jurnal Metalurgi dan Material Indonesia
Djoeli Satrijo
Unknown Affiliation
Automotive Engineering Chemistry Engineering Industrial & Manufacturing Engineering Mechanical Engineering

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
Karakterisasi Kekuatan Lelah Siklus Rendah Besi Cor Kelabu: Characterization of Low Cycle Fatigue Strength of Gray Cast Iron Agus Suprihanto; Dwi Basuki Wibowo; Djoeli Satrijo
Jurnal Metalurgi dan Material Indonesia Vol. 2 No. 3 (2019): Desember
Publisher : Badan Kerja Sama Pendidikan Metalurgi dan Material (BKPMM)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Low cycle fatigue testing has been carried out on gray cast iron. 60 specimens made of three FC200 gray cast iron alloys with Cr (0.23%, 0.32% & 0.47% wt) and Cu (0.6% -0.7%) were tested using a servo pulse machine. Specimen dimensions refer to ASTM E739 standard. Low cycle fatigue testing used strain amplitudes between 0.15 to 0.5%. The fatigue behavior is characterized using Downing and Fash method. The analysis shows that the coefficient of fatigue strength (A) is between 2.336 –2.896 and the exponent of fatigue strength is between -0.251 to –0.266.
OPTIMASI PELAPISAN MATERIAL VISKOELASTIK I Wayan Suweca; Bagus Budiwantoro; Gatot Santoso; Djoeli Satrijo
Mesin Vol. 11 No. 1 (1996)
Publisher : Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Dalam tulisan ini dibahas suatu penerapan dari metode optimasi untuk mendapatkan redaman struktur melalui pelapisan material viskoelastik secara optimal. Algoritme optimasi yang digunakan didasarkan pada metode kriteria optimalitas (optimality criteria) dari Kuhn-Tucker, di mana berat total struktur di ambil sebagai fungsi objektif dengan kendala dinamik berupa redaman struktur. Model redaman yang digunakan adalah redaman jenis histeritik. Gradien fungsi kendala terhadap disain variabel dihitung dengan menggunakan perhitungan sensitivitasdengan variabel kompleks. Sebagai contoh numerik diberikan satu kasus optimasi pelapisan material viskoelastik pada suatu beam Euler-Bernoulli.
DISTRIBUSI TEGANGAN PADA PERCABANGAN PIPA 90O AKIBAT TEKANAN INTERNAL MENGGUNAKAN MEH Agus Suprihanto; Djoeli Satrijo; Dwi Basuki Wibowo
TEKNIK Vol 28, No 2 (2007)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (178.992 KB) | DOI: 10.14710/teknik.v28i2.2113

Abstract

Piping system is very important in many industries. Ones of crucial in design of piping system are todetermine the stress distribution around the branch. In this research, the distributed stress over 90o branchpiping system was evaluated with finite element method. Five models piping 90o branch which differentratio of diameter of pipe have been developed. The load applied on the models is internal pressure.The results indicate that around the branch there is stress distribution. The maximum stress is located atcenter of the branch but decrease significantly in the distance 30mm-45mm from it. Beyond the distance75mm from center, for diameter ratio 1, the model gives good agreement with experiment data
Co-Authors Agus Suprihanto Agus Suprihanto Bagus Budiwantoro Dwi Basuki Wibowo Dwi Basuki Wibowo I Wayan Suweca Ir. Gatot Santoso