Analisa Kekuatan Impak Dengan Variasi Sudut Bandul Pada Material Logam Baja St37

Abstract

Now, science and technology more realize how important is safety factor applicable on a contruction notably by rapid loading. Impact test is an analysis of the material to determine the toughness of the material received dynamic loads due to the materials that will be used to build a structure or other functions must be able to withstand the loads that will be received. The purpose of this thesis is that students are able to design charpy impact machine, knowing how does it mechanism, and performance analysis within calibration based on impact energy of specimens. The methodology applied has four main points those are construction engineering, process manufacturing, data retrieval, performance analysis and calibration. From the performance test methods Charpy impact test equipment capacity of 240 Joules, brass impact energy has on average 22,16 Joules with a standard deviation ± 1,620 Joules, stainless steel 82,08 Joules with a standard deviation ± 6,536 Joules, and then steel 173,47 Joules ± with standard deviation of 12,941 Joules. Calibration is based on more standard charpy machine in Lembaga Inspeksi Migas-Cepu. By comparing both data can be expressed standard error reaches 4,597%