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

A uniaxial tensile, high temperature mechanics technology, applied in the direction of analyzing materials, scientific instruments, strength properties, etc., can solve the problem of inability to accurately obtain the strain field of the specimen, and achieve fast heating speed, rapid and uniform heating, and good temperature uniformity. Effect

Active Publication Date: 2020-01-10
SHANDONG UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

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

Method used

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

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Embodiment 1

[0028] This embodiment provides a uniaxial tensile high-temperature mechanical performance test system for a plate, including a tensile test device and two heating devices symmetrically arranged on the tensile test device.

[0029] Please refer to the attached figure 1 , the tensile test device includes a workbench, two clamps 10 arranged on the workbench and a tensile test piece 1 clamped between the two clamps.

[0030] Two heating devices are symmetrically arranged on the workbench, located on both sides of the tensile test piece. Specifically, the heating device includes a PLC control system, an induction heating power supply, an induction coil 3, an iron plate 2 and an iron plate support frame.

[0031] The iron support frame is arranged on the workbench of the tensile test device. Please refer to the attached figure 1 , the iron plate support frame includes a base 4 and a support column 5 arranged on the base, the iron plate 2 is fixed on the support column 5 by two s...

Embodiment 2

[0039] This embodiment provides a test method for uniaxial tensile high-temperature mechanical properties of plates, which is implemented based on the test system for uniaxial tensile high-temperature mechanical properties of plates described in Embodiment 1. The method includes the following steps:

[0040] S101, the induction heating power supply outputs current to the induction coil, the iron plate is heated by the induction coil, and the heat is transferred to the tensile test piece to realize rapid and uniform heating of the tensile test piece.

[0041] S102, the thermocouple wire collects the temperature of the tensile test piece, and transmits it to the thermocouple module.

[0042] S103, the thermocouple module acquires the specimen temperature collected by the thermocouple wire, and transmits it to the CPU processor module, and the CPU processor module processes the specimen temperature data collected by the thermocouple wire, and transmits it to the PLC controller;

...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/18
CPCG01N3/18G01N2203/0017G01N2203/0075G01N2203/0202G01N2203/0226G01N2203/0282G01N2203/0694H05B6/40H05B6/105G01N3/08G01N2203/0252Y02P10/25
Inventor 褚兴荣王志豪孔祥瑞郭斯琪陈良高军
Owner SHANDONG UNIV
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