Abstract
This paper presents the design and implementation of Mechanical system testing for tensile and three-point flexural test for both metallic and polymeric materials. A control and monitoring system was adapted to the data, using specialized equipment for industrial automation, i.e. PLC system. Main Parameters to perform the tensile and three point flexural tests, and the functional and technical specifications according to the ASTM (American Society of Testing Materials) standards were defined. Conceptual design, mathematical calculations and CAD designs were developed using Solidworks. Graphical user interfaces (GUI) were designed to interact with the user. Human machine interface (HMI) was implemented in proprietary software and includes rules for the supervision and manipulation of core variables for the user according to the ASTM standard. The HMI was interconnected with a programmable logic controller (PLC) where the process selection rules was implemented in GRAFCET diagram, following the ASTM protocols. The system has a test capacity of 500 Kgf both for the tensile test and for the three-point flexural test, with an accuracy of ± 2%, under the ASTM E177 standard, and the HMI interface as an innovative monitoring and control system.
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