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All Journal Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Journal of Islamic Economic Laws
Hendri, Darwin
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Religion Aerospace Engineering Humanities Automotive Engineering Economics, Econometrics & Finance Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Social Sciences

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Analisa Kegagalan Baut Pengikat Pelat Trunnion Linner pada Unit Cement Mill 1 Di PT. X Hendri, Darwin; Irwansyah, Irwansyah; Susanto, Herdi; Ali, Syurkarni
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 10, No 1 (2024): April
Publisher : universitas teuku umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jmkn.v10i1.8815

Abstract

This research aims to identify the causes of the failure of the fastening bolts for the trunnion plate on cement mill unit 1 at PT. X. The research method used is an empirical study consisting of two main phases. The first phase involves identifying the causes of bolt fractures through macroscopic observations to examine the patterns of bolt fractures. The second phase involves analyzing the forces acting on the bolts by calculating the inertial forces generated due to torque tightening, followed by determining the centrifugal forces produced by the ground material and calculating the bending moments affecting the bolts. The results of this research revealed that the main cause of bolt failure is the presence of crack patterns characterized by significant plastic deformation in the bolt body; this type of fracture is categorized as ductile fracture. Analysis of the forces acting on the bolt also revealed that the stress applied to the bolt exceeds its strength capacity. The stress reached 436 MPa, whereas the bolt's strength was only around 330 MPa (yield strength). The findings of this research are expected to serve as initial data for further research that will investigate the metallurgical aspects as a deeper cause of bolt failure.
Best Practice Halal Integrity Management In The Logistic Chain Scheme: Analysis Of Opportunities And Challenges Rizki, Darlin; Hamzah, Moh.; Fakhiroh, Zakiyatul; Hendri, Darwin
Journal of Islamic Economic Laws Vol 6, No 1: January 2023
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jisel.v6i1.19867

Abstract

Nowadays, consumers are increasingly aware and concerned about halal status, and activities in the supply chain are truly halal guaranteed for them to buy. This article aims to explore the development of halal logistics, analyze the opportunity and challenge factors in its development stage, and create a best practice scheme to realize halal integrity. This research method uses a Systematic Literature Review (SLR) using secondary data from several previous studies discussing halal logistics and halal integrity in the supply chain. From this study, it is known that countries in Southeast Asia have shown a positive response to the existence of a halal logistics scheme as an innovation in the supply chain. Several opportunities known for the development of halal logistics mainly lie in the high demand for halal products, the positive growth of the sharia economy, the use of information technology, and the strengthening of the halal ecosystem. Meanwhile, regarding challenges, there needs to be a special regulation regulating halal logistics, common stakeholder knowledge about halal, a need for more experts and researchers, and the absence of a particular infrastructure that handles halal products. In the end, the author develops a halal integrity scheme in the supply chain with a logistics management approach. This article can better understand halal integrity in the supply chain. Further research can empirically test the relationship between logistics management and halal integrity.
Co-Authors Fakhiroh, Zakiyatul Hamzah, Moh. Herdi Susanto Irwansyah Irwansyah Syurkarni Ali