PENGARUH KANDUNGAN KADAR AIR (MOISTURE CONTENT) TERHADAP PENGUJIAN MATERIAL (IMPAC, STATIC LOAD, TORQUE, DYNAMIC STRUCTURAL) DAN PERHITUNGAN DEFLEKSI BATANG UNTUK MENGETAHUI NILAI MOE (MODULUS OF ELASTICITY)

RIFAL.HS, AKHMAD (2020) PENGARUH KANDUNGAN KADAR AIR (MOISTURE CONTENT) TERHADAP PENGUJIAN MATERIAL (IMPAC, STATIC LOAD, TORQUE, DYNAMIC STRUCTURAL) DAN PERHITUNGAN DEFLEKSI BATANG UNTUK MENGETAHUI NILAI MOE (MODULUS OF ELASTICITY). S1 thesis, Universitas Mercu Buana.

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Abstract

Wood is one type of material that is widely used for various purposes. Factors that influence the strength of wood include biological factors, moisture content, wood density. The difference in water content found in wood affects the strength of wood. For this reason, a strength test is needed using a wood material strength test system to get the most optimal moisture content. Then do the grouping of water content in each type of wood with the aim to determine the nature of mechanical strength, making it easier for the manufacturing process. Test methods that can be applied are Impac, Static Load, Toque, Dynamic Structural Test and Bar Deflection Calculation to determine the value of MOE (Modulus of Elasticity). The value of moisture content in each type of wood is the most optimal after a mechanical test for Teak wood = 7.4%; Pine wood = 8.9%; Rubber wood = 6.9%; Mahogany wood = 8.3% and modulus of elasticity (MOE) value for Teak wood = 3395 N / mm²; Pine wood = 3141 N / mm²; Rubber wood = 2991 N / mm²; Mahogany wood = 2792N / mm². Grouping the amount of moisture content based on the maximum value of the mechanical strength of wood is high quality (class A) Teak wood = 7.4% - 7.8%; pine wood = 8.9% - 9.2%; Rubber wood = 6.9% - 7.8%; Mahogany wood = 8.3% - 8.8%. Medium quality wood (class B) Teak wood = 7.9% - 8.6%; Pine wood = 9.3% - 9.6%; Rubber wood = 7.9% - 8.1%; Mahogany wood = 8.9% - 9.2%. Low quality wood (class C) Teak wood = 8.7% - 9.5%; Pine wood = 9.7% - 10.8%; Rubber wood = 8.2% - 10.2%; Mahogany wood = 9.3% - 10.5%. Keywords: Wood, Strength, Moisture content. Kayu merupakan salah satu jenis material yang banyak digunakan untuk berbagai keperluan. Faktor-faktor yang mempengaruhi kekuatan kayu diantaranya adalah faktor biologis kadar air, berat jenis kayu. Perbedaan kadar air yang terdapat pada kayu berpengaruh terhadap kekuatan kayu. Untuk itu, diperlukan pengujian kekuatan menggunakan sistem uji kekuatan material kayu untuk mendapatkan nilai kadar air (moisture content) yang paling optimal. Kemudian melakukan pengelompokan kadar air pada setiap jenis kayu dengan tujuan untuk mengetahui sifat kekuatan mekanisnya, sehingga memudahkan proses manufaktur. Metode pengujian yang dapat diaplikasikan adalah Impac, Static Load, Toque, Dynamic Structural Test dan Perhitungan Defleksi Batang Untuk mengetahui nilai MOE (Modulus Of Elasticity). Nilai kadar air (moisture content) disetiap jenis kayu yang paling optimal setelah dilakukan uji mekanis untuk kayu Jati = 7,4 %; kayu Pinus = 8,9 %; kayu Karet = 6,9%; kayu Mahoni = 8,3% dan nilai modulus elastisitas (MOE) untuk kayu Jati = 3395 N/mm²; kayu Pinus = 3141 N/mm² ; kayu Karet = 2991 N/mm²; kayu Mahoni = 2792N/mm². Pengelompokan jumlah kadar air (moisture content) berdasarkan nilai maksimum kekuatan mekanis kayu adalah kualitas tinggi (kelas A) kayu Jati = 7,4% - 7,8% ; kayu pinus = 8,9% - 9,2% ; kayu Karet = 6,9% - 7,8% ; kayu Mahoni = 8,3% - 8,8%. Kayu kualitas sedang (kelas B) kayu Jati = 7,9% - 8,6% ; kayu Pinus = 9,3% - 9,6% ; kayu Karet = 7,9% - 8,1% ; kayu Mahoni = 8,9% - 9,2%. Kayu kualitas rendah (kelas C) kayu Jati = 8,7% - 9,5% ; kayu Pinus = 9,7% - 10,8% ; kayu Karet = 8,2% - 10,2% ; kayu Mahoni = 9,3% - 10,5%. Kata Kunci : Kayu, Kekuatan, Kadar air.

Item Type:	Thesis (S1)
Call Number CD:	FT/MSN. 20 106
NIM/NIDN Creators:	41318110012
Uncontrolled Keywords:	Kayu, Kekuatan, Kadar air.
Subjects:	000 Computer Science, Information and General Works/Ilmu Komputer, Informasi, dan Karya Umum > 000. Computer Science, Information and General Works/Ilmu Komputer, Informasi, dan Karya Umum > 005 Computer Programmming, Programs, Data/Pemprograman Komputer, Program, Data > 005.1 Programming/Pemrograman > 005.14 Verification, Testing, Measurement, Debugging/Verifikasi, Pengujian, Pengukuran, Debug 500 Natural Science and Mathematics/Ilmu-ilmu Alam dan Matematika > 540 Chemistry/Kimia > 541 Physical Chemistry/Kimia Fisik > 541.2 Theoretical Chemistry/Teori Kimia, Kimia Teoritis 500 Natural Science and Mathematics/Ilmu-ilmu Alam dan Matematika > 540 Chemistry/Kimia > 543 Analytical Chemistry/Kimia Analitikal, Kimia Analisis
Divisions:	Fakultas Teknik > Teknik Mesin
Depositing User:	Dede Muksin Lubis
Date Deposited:	24 Feb 2022 23:47
Last Modified:	10 Dec 2022 02:42
URI:	http://repository.mercubuana.ac.id/id/eprint/56802

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