Development and implementation of an opensource DIC acquisition system, focusing on temporal synchronization with the Gleeble 3800

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dc.contributor.advisorGeorge, Sarah
dc.contributor.authorVos, Maxwell
dc.date.accessioned2026-01-29T13:21:47Z
dc.date.available2026-01-29T13:21:47Z
dc.date.issued2025
dc.date.updated2026-01-29T12:14:09Z
dc.description.abstractThe Gleeble 3800 is a thermomechanical processing simulator with the ability to perform high temperature, high strain rate deformation experiments. The standard Gleeble 3800 uses electrical resistance heating for temperature control and a closed loop hydraulic actuator for displacement control. In order to extract greater accuracy and control of simulated processing parameters, the incorporation of a synchronised Digital Image Correlation (DIC) capability with equipment such as the Gleeble 3800 has become essential. Current commercial DIC systems offer limited versatility, particularly with regards to integrating DIC and thermal imaging on the Gleeble 3800 in addition to being financially prohibitive for many researchers. Current open-source acquisition solutions lack the specifications required for most DIC applications and custom solutions are overly complex for many DIC users. This research therefore aimed to develop an open-source DIC acquisition system for materials research applications that fulfil these shortcomings. The DIC Capture system addresses these limitations by using high quality hardware that interfaces with user orientated software, thus facilitating complex material testing protocols at a reduced cost. The DIC Capture system comprises of a hardware data acquisition (DAQ) board, full field camera system and control computer. The DAQ is controlled by an Arduino Nano ESP32 that sends camera trigger times, voltage values from the ±10V ADS8584S analogue to digital converter (ADC) and sync times with the Gleeble 3800. The camera trigger frequency follows a predetermined sequence and is iterated through a command in the Gleeble Script Language (GSL) program, which controls the Gleeble 3800, thus allowing for event-based frame-rate changes. The Python based software displays and saves images from the DIC cameras, synchronizing all data received from the DAQ board and any other image recording sources. The DIC Capture system can produce high quality DIC data sets and integrates with the Gleeble 3800 for high temperature DIC applications. The DIC capture system has been successfully tested in three different case studies across a range of testing conditions.
dc.identifier.apacitationVos, M. (2025). <i>Development and implementation of an opensource DIC acquisition system, focusing on temporal synchronization with the Gleeble 3800</i>. (). University of Cape Town ,Faculty of Engineering and the Built Environment ,Department of Mechanical Engineering. Retrieved from http://hdl.handle.net/11427/42759en_ZA
dc.identifier.chicagocitationVos, Maxwell. <i>"Development and implementation of an opensource DIC acquisition system, focusing on temporal synchronization with the Gleeble 3800."</i> ., University of Cape Town ,Faculty of Engineering and the Built Environment ,Department of Mechanical Engineering, 2025. http://hdl.handle.net/11427/42759en_ZA
dc.identifier.citationVos, M. 2025. Development and implementation of an opensource DIC acquisition system, focusing on temporal synchronization with the Gleeble 3800. . University of Cape Town ,Faculty of Engineering and the Built Environment ,Department of Mechanical Engineering. http://hdl.handle.net/11427/42759en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Vos, Maxwell AB - The Gleeble 3800 is a thermomechanical processing simulator with the ability to perform high temperature, high strain rate deformation experiments. The standard Gleeble 3800 uses electrical resistance heating for temperature control and a closed loop hydraulic actuator for displacement control. In order to extract greater accuracy and control of simulated processing parameters, the incorporation of a synchronised Digital Image Correlation (DIC) capability with equipment such as the Gleeble 3800 has become essential. Current commercial DIC systems offer limited versatility, particularly with regards to integrating DIC and thermal imaging on the Gleeble 3800 in addition to being financially prohibitive for many researchers. Current open-source acquisition solutions lack the specifications required for most DIC applications and custom solutions are overly complex for many DIC users. This research therefore aimed to develop an open-source DIC acquisition system for materials research applications that fulfil these shortcomings. The DIC Capture system addresses these limitations by using high quality hardware that interfaces with user orientated software, thus facilitating complex material testing protocols at a reduced cost. The DIC Capture system comprises of a hardware data acquisition (DAQ) board, full field camera system and control computer. The DAQ is controlled by an Arduino Nano ESP32 that sends camera trigger times, voltage values from the ±10V ADS8584S analogue to digital converter (ADC) and sync times with the Gleeble 3800. The camera trigger frequency follows a predetermined sequence and is iterated through a command in the Gleeble Script Language (GSL) program, which controls the Gleeble 3800, thus allowing for event-based frame-rate changes. The Python based software displays and saves images from the DIC cameras, synchronizing all data received from the DAQ board and any other image recording sources. The DIC Capture system can produce high quality DIC data sets and integrates with the Gleeble 3800 for high temperature DIC applications. The DIC capture system has been successfully tested in three different case studies across a range of testing conditions. DA - 2025 DB - OpenUCT DP - University of Cape Town KW - Engineering LK - https://open.uct.ac.za PB - University of Cape Town PY - 2025 T1 - Development and implementation of an opensource DIC acquisition system, focusing on temporal synchronization with the Gleeble 3800 TI - Development and implementation of an opensource DIC acquisition system, focusing on temporal synchronization with the Gleeble 3800 UR - http://hdl.handle.net/11427/42759 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/42759
dc.identifier.vancouvercitationVos M. Development and implementation of an opensource DIC acquisition system, focusing on temporal synchronization with the Gleeble 3800. []. University of Cape Town ,Faculty of Engineering and the Built Environment ,Department of Mechanical Engineering, 2025 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/42759en_ZA
dc.language.isoen
dc.language.rfc3066eng
dc.publisher.departmentDepartment of Mechanical Engineering
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subjectEngineering
dc.titleDevelopment and implementation of an opensource DIC acquisition system, focusing on temporal synchronization with the Gleeble 3800
dc.typeThesis / Dissertation
dc.type.qualificationlevelMasters
dc.type.qualificationlevelMSc
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