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Test chamber capable of simulating mechanical properties of test pieces in high-temperature states and system with test chamber

A high-temperature state, test chamber technology, used in scientific instruments, strength characteristics, and application of stable tension/pressure to test material strength, etc. High performance, wide application range and accurate detection results

Active Publication Date: 2016-07-20
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned prior art in which the test piece bears complex loads under the high temperature state, the actual situation cannot be simulated more accurately, which causes deviations in the research on the damage mechanism of the test piece. Test chamber and system for the mechanical properties of the lower specimen

Method used

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  • Test chamber capable of simulating mechanical properties of test pieces in high-temperature states and system with test chamber
  • Test chamber capable of simulating mechanical properties of test pieces in high-temperature states and system with test chamber
  • Test chamber capable of simulating mechanical properties of test pieces in high-temperature states and system with test chamber

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as Figure 1 to Figure 5 As shown, a test chamber capable of simulating the mechanical properties of a test piece under a high temperature state includes a case body 8 and a heating device 1 arranged in the case body 8. There are more than one heating device 1, and each heating device 1 is The positions in the box body 8 are all adjustable.

[0036] The box body 8 provided above is used to contain the test piece 7 that needs to carry out the mechanical performance simulation experiment under the high temperature state, and the heating device 1 arranged in the box body 8 is used to heat the environment in the box body 8, so as to be tested in the test. A high temperature environment is formed around the piece 7.

[0037] In this test box, there are more than one heating device 1, and the position of the heating device 1 in the box body 8 is adjustable, so as to adjust the mutual positions of the heating devices 1 according to specific simulation needs, so as to A ...

Embodiment 2

[0040] Such as Figure 1 to Figure 4 As shown, this embodiment is further limited on the basis of Embodiment 1: as a preferred implementation of the heating device 1, the heating device 1 is a resistance heating rod, and the wall of the box body 8 An annular hole is provided, and any one end of each heating device 1 is inserted into the annular hole, and the heating device 1 can slide in the annular hole, and each heating device 1 is also provided with a fixing device for realizing its fixed connection with the box body 8. device. In the above scheme, after the constraint of the fixing device on the heating device 1 is released, the heating device 1 can slide around the annular hole to linearly adjust the position of the heating device 1 in the annular hole. Restraining can make each heating device 1 maintain a fixed position in the box body 8 . Since the existing resistive heating rod generally emits visible light when it is working, the heating power of the resistive heati...

Embodiment 3

[0047] A system that can simulate the mechanical properties of specimens under high temperature conditions, such as Figure 1 to Figure 6 As shown, it includes a load loading device 9 , and also includes any test box solution provided by any one of the above embodiments. The test piece fixing end of the load loading device 9 is located inside the box body 8 .

[0048] The load loading device 9 provided above is used to apply the stress that needs to be simulated on the test piece 7, and the above load loading device 9 is used to load tensile stress, compressive stress, alternating stress, etc. on the test piece 7, such as using a pneumatic cylinder, hydraulic pressure, etc. The end of the piston rod of the cylinder acts on the test piece 7, and a load loading device 9 composed of a piezoelectric transducer and a displacement amplifier connected in series, and an ultrasonic signal generator as the piezoelectric transducer power input device is used. The above system can carry o...

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Abstract

The invention discloses a test chamber capable of simulating mechanical properties of test pieces in high-temperature states and a system with the test chamber. The test chamber comprises a chamber body and more than one heating device. The heating devices are arranged in the chamber body and can be repositioned in the chamber body. The system comprises the test chamber and a load loading device. According to the scheme, the test chamber and the system have the advantages that heated environments which are in close proximity to high-temperature environments bearable for the test pieces in service states can be simulated for the test pieces, accordingly, the test chamber and the system are high in detection efficiency and wide in application range, accurate detection results can be obtained, and test states of the test pieces in fire hazard states can be particularly simulated by the aid of the test chamber and the system.

Description

technical field [0001] The invention relates to the technical field of experimental devices for the mechanical properties of test pieces, in particular to a test chamber and a system capable of simulating the mechanical properties of test pieces under high temperature conditions. Background technique [0002] With the acceleration of urbanization, people have higher and higher requirements for the fire resistance of building structures. When building structural components (mechanical components) face fire conditions, they will be damaged due to water loss or changes in internal chemical composition. At this time, the structural components (mechanical components) of the building are subjected to complex loads, which often require attention. The load conditions mainly include static load and dynamic load. The dynamic loads are mainly alternating loads. Its failure type can also analyze static failure or fatigue failure. In the case of fire, the stress conditions of componen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/00G01N3/18
CPCG01N3/00G01N3/18
Inventor 袁书成王清远董江峰梁危
Owner SICHUAN UNIV
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