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Journal : Bhinneka Multidisiplin Journal

RANCANG BANGUN ALAT IMPACT TEST DENGAN METODE IZOD MENGGUNAKAN STANDAR ASTM E23 Erwin, Erwin; Lubis, Asnawi; Ansyori, Anang
Bhinneka Multidisiplin Journal Vol. 2 No. 5 (2025): Bhinneka Multidisiplin Journal
Publisher : Yayasan Education and Social Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53067/bmj.v2i5.84

Abstract

An increasingly advanced era, the need for buildings is increasing, especially in the field of architecture that uses metal as its main material. However, all of that must be balanced with the feasibility of the design, before implementing the design, the material must be tested first. Impact testing is a test used to measure the resistance of a material to impact loads. Impact testing attempts to simulate the operating conditions of materials commonly found in transportation and construction equipment. Loads always occur suddenly, not slowly. For example, the change in a car bumper due to an accident or a ship hitting a coral reef while sailing at sea. This study aims to create an impact test tool using the izod method to measure impact energy and metal impact strength. The methodology in this study is a literature study, design, workmanship, and tool testing. The iron nako specimen with a length of 75 mm, a width of 10 mm and a height of 10 mm is then notched at a point 28 mm from the end of the specimen with a U notch to be carried out in the izod method impact test using the ASTM E23 standard, namely the pendulum impact tester at ambient temperature and low temperature and high temperature conditions. In the test of specimens at a temperature of 0°C, the impact energy value is 151.332 J, and the test of specimens at a temperature of 20°C, the impact energy is 160.007 J. While for ambient temperature or 30°C, the impact energy is 165.763 J. In the test of specimens at a high temperature of 45°C, the impact energy is 177.163 J, and the specimen at a temperature of 60°C, the impact energy is 188.365 J. In the impact test of the ASTM E23 izod method that has been carried out, the fracture of nako iron can become ductile if the temperature of the specimen is increased. It can be concluded that the higher the temperature, the more the specimen fracture tends to experience ductile fracture.
PERANCANGAN ALAT PENGUJIAN IMPAK METODE CHARPHY SKALA LAB MENGGUNAKAN ASTM E23 Dimas, Dimas Ega Setiawan; Lubis, Asnawi; Ansyori, Anang; Hartawan, Beny
Bhinneka Multidisiplin Journal Vol. 3 No. 1 (2026): Bhinneka Multidisiplin Journal
Publisher : Yayasan Education and Social Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53067/bmj.v3i1.95

Abstract

One of the basic construction requirements is material. The mechanical properties required by a material include ductility, hardness, strength, and toughness. To determine the mechanical properties of a metal, it must be tested, one of which is the impact test. Impact testing is a test that measures resistance to shock loads. This study aims to design and construct an impact testing machine using the Charpy method and conduct direct research to determine the strength and impact energy of a metal. The tools used include a measuring scale, bearings, a shaft, a frame, a pendulum, and brakes. The test specimens used the ASTM E23 standard, which has a square cross-sectional area (10 x 10 mm) and a V-notch of 45°, with a base radius of 0.25 mm and a depth of 2 mm, and a 10 mm rivet. This impact test equipment has a pendulum weight of 18 kg, a pendulum length of 700 mm, an initial knock position of 1450, has dimensions of 1500 mm in length, 350 mm in width, and 1200 mm in height. The first specimen has a cross-sectional area of 550 mm² at 0⁰C producing an impact energy of 212.131 J, and an impact value of 0.385 J/mm². The second specimen at 15 ⁰C produces an impact energy of 213.953 J and an impact value of 0.389 J/mm². The third specimen at 30 ⁰C produces an impact energy of 221.464 J and an impact value of 0.402 J/mm². The fourth specimen at 45 ⁰C produces an impact energy of 222.360 J and an impact value of 0.404 J/mm². The fifth specimen, at 60°C, produced an impact energy of 223.108 J, resulting in an impact value of 0.405 J/mm². Testing ASTM E23-standardized steel with varying temperatures revealed that steel becomes more brittle when exposed to low temperatures, and more ductile when exposed to high temperatures.