Rukmono, Andy Pujo and Setyoko, Bambang (2011) RANCANG BANGUN ALAT UJI BENDING SISTEM HIDROLIK DAN HASIL PENGUJIAN UNTUK BAHAN UJI KACA ( DESIGN OF BENDING HYDRAULIC SYSTEM TEST EQUIPMENT AND MATERIALS TESTING RESULTS FOR GLASS TEST ). Undergraduate thesis, D3 Teknik Mesin.
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Abstract
Uji lengkung (bending test) merupakan salah satu jenis pengujian bahan yang dilakukan untuk mengetahui sifat mekanik suatu bahan teknik. Dalam prakteknya masih sedikit para praktisi pengujian bahan yang memperhatikan aspek dan pengaruh variasi dimensi benda uji terhadap data hasil uji lengkung. Untuk itu alat uji bending ini dibuat untuk mempelajari pengaruh variasi dimensi benda uji pada pengujian lengkung. Pengujian dilakukan dengan menggunakan alat uji bending sistem hidrolik dengan dimensi alat 600x75x750 mm. Dan pengujian terhadap bahan uji kaca dengan tiga variasi dimensi yaitu 50x40x12 mm, 50x40x8mm dan 50x40x6 mm, dan metode yang digunakan dalam pengujian ini adalah three point bending dan four point bending. Data tekanan dongkrak, simpangan dan waktu diambil hingga spesimen/benda uji mendapatkan tekanan maksimal dari gaya tekan hidrolik. Hasil pengujian menunjukkan bahwa dimensi benda uji mempengaruhi gaya tekan yang terjadi pada saat pengujian. Semakin kecil dimensi yang di uji maka semakin kecil pula gaya tekan yang di timbulkan. Pada saat melakukan bending test, nilai rata-rata flexural strength yang didapatkan dengan menggunakan metode three point bending untuk kaca Mulia dengan ketebalan 12 mm sebesar 7,514 kg/mm2 dan pada saat melakukan pengujian dengan four point bending belum berhasil dikarenakan manometer yang digunakan tidak mencukupi kapasitasnya, untuk kaca Mulia dengan ketebalan 8 mm nilai rata- rata Flexural Strength dengan menggunakan metode three point bending sebesar 7,386 kg/mm2 dan untuk pengujian four point bending nilai rata-rata flexural strength sebesar 8,962 kg/mm2.Sedangkan untuk kaca Mulia dengan ketebalan 6 mm nilai rata- rata Flexural Strength dengan menggunakan metode three point bending sebesar 8,256 kg/mm2 dan untuk pengujian four point bending nilai rata-rata flexural strength sebesar 9,944 kg/mm2 Kata Kunci: Bending test, three point bending, four point bending, flexural strength, dimensi Bend test (bending test) is one type of material testing conducted to determine the mechanical properties of a material engineering. In practice there are still few practitioners who pay attention to aspects of materials testing and the influence of variations in the dimensions of the specimen to bend test result data. For the bending test equipment is designed to study the effect of variations in the dimensions of the specimen on the test arch. Tests carried out using test equipment with a hydraulic system bending tool dimensions 600x75x750 mm. And testing of test materials with three-dimensional variations of glass that is 50x40x12 mm, 50x40x8mm and 50x40x6 mm, and the methods used in this test is the three-point bending and four point bending. Jack pressure data, the deviation and the time taken until the specimen / test object to get the maximum pressure of the hydraulic press style. Test results show that the dimensions of the specimen affects the compressive force that occurs during testing. The smaller dimensions in the smaller trials also compressive force that caused. At the time of bending test, the average value of flexural strength obtained by using three-point bending to the glass with a thickness of 12 mm Honor of 7.514 kg/mm2 and during the four-point bending test has not been successful due to the manometer used is not sufficient capacity , for glass thickness 8 mm Majesty with the average value of Flexural Strength by using three-point bending method of 7.386 kg/mm2 and a four-point bending test for the average value of 8.962 kg/mm2. flexural strength for glass with thickness 6 Noble mm average value Flexural Strength by using three-point bending method of 8.256 kg/mm2 and a four-point bending test for the average value of flexural strength of 9.944 kg/mm2 Keywords: Bending test, three-point bending, four point bending, flexural strength, dimensional
Item Type: | Thesis (Undergraduate) |
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Subjects: | T Technology > TJ Mechanical engineering and machinery |
Divisions: | Faculty of Engineering > Diploma in Mechanical Engineering Faculty of Engineering > Diploma in Mechanical Engineering |
ID Code: | 29584 |
Deposited By: | INVALID USER |
Deposited On: | 05 Oct 2011 15:24 |
Last Modified: | 05 Oct 2011 15:24 |
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