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The Charpy impact test is a well-known material testing method used to determine the amount of the energy absorbed by the material during
fracture and to investigate the material behavior at high strain-rate during impact. Nowadays, it is widely used in many industries
to determine appropriate material and design in engineering applications such as pressure vessels, bolts, and bridges. Although it
consists of straightforward components, in order to obtain accurate results, it is crucial to perform the tests under standardized conditions
and a user-friendly environment. Thus, the aim of this work is to design and manufacture a cost-effective, user-friendly, in-house
Charpy impact tester using Arduino. A Charpy tester with a maximum capacity of 48 J was designed in a CAD environment and its each
component were manufactured and assembled into a solid body. In addition, to prevent plastic deformation during the fracture, the hammer
was heat-treated. For a user-friendly control panel, a LCD screen was mounted to display all experimental data including the impact energy
for each sample. The data acquisition was realised using an Arduino UNO microcontroller board equipped with a SD card module. The
system enables the saving of measurement sets in separate .csv files (comma separated files), an open and widely accessible format. The
system can be used in two different modes: display only mode (when no SD card inserted) or display and save mode (when an SD
card is detected). Another advantage of the system is the possibility to simulate the integration of the different modules thanks to
the Arduino platform. The calibration of the device was realized according to international standards. The obtained Charpy impact
tester, thus can be used confidently for future planned investigations and the described procedure can be implemented for different material
testing equipment to achieve cost-effective and user-friendly designs.
International Iron & Steel Symposium
UDCS
Necati Uçak
Görkem Ünlü
Mustafa Yediparmak
Serife Akkoyun
Anıl Kurt
Mehmet O. Şahin
Ömer T. Dolanbay
Adem Çiçek