Unidirectional tensile high-temperature mechanical property test system and method for sheet material

Abstract

The present invention discloses a unidirectional tensile high-temperature mechanical property test system and method for a sheet material, which realizes the determination of the basic mechanical properties of a unidirectional tensile test on the sheet material at a high temperature. The system comprises a tensile test device and two heating devices symmetrically arranged on the tensile test device; the tensile test device comprises a workbench, two clamps arranged on the workbench, and a tensile test piece clamped between the two clamps; the heating device comprises a PLC control system, an induction heating power supply, an induction coil, an iron plate and an iron plate support frame; the iron plate support frame is arranged on the workbench; the iron plate is fixedly arranged on the iron plate support frame; one side of the iron plate is parallel to the test piece, and the other side is parallel to the induction coil; the induction heating power supply is connected with the induction coil; and the PLC control system is connected with the induction heating power supply, and is configured to control the output power of the induction heating power supply to realize the automatic adjustment control of the temperature of the tensile test piece.

Description

technical field [0001] The present disclosure relates to the field of characterization of mechanical properties of metal plates, in particular to a test system and method for uniaxial tensile mechanical properties of metal plates under high temperature conditions. Background technique [0002] Accurate high-temperature mechanical properties of metal sheets have important guiding significance for high-temperature forming of sheets. At present, the heating method in the furnace is mainly used to test the thermal tensile mechanical properties of metal sheets at home and abroad, and the detailed data of sheet single-tension experiments can be obtained with the help of high-temperature extensometers. In recent years, the non-contact strain measurement method (DIC technology) has been widely used in the mechanical performance test of metal plates. DIC technology can not only obtain the accurate strain of metal plates, but also record the strain development history of the plate def...

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Problems solved by technology

[0004] In order to overcome the deficiency that the existing thermal environment uniaxial tensile test system cannot accurately obtain the strain field of the specimen, the present disclosure provides a plate uniaxial tensile test The high-temperature mechanical performance test system and method realize the determination of the basic mechanical properties of the plate in the uniaxial tensile test at high temperature, and obtain accurate stress-strain curves, as well as the elastic modulus, yield strength, tensile strength, and various Item anisotropic r value and other basic mechanical properties data

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