Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Test box and system capable of simulating mechanical property of test piece under freeze-thaw temperature load

A test box and test piece technology, which is applied in the direction of applying stable tension/pressure to test the strength of materials, can solve the problems of engineering practical application errors and inaccurate test results, and achieve the benefits of accuracy, efficiency and convenience. Effect

Inactive Publication Date: 2016-06-01
SICHUAN UNIV
View PDF25 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned prior art in the experimental process of the mechanical properties of the test piece during the freeze-thaw process, the test results are not accurate enough, which causes a large error in the actual engineering application. The present invention provides a test piece that can simulate the freeze-thaw temperature load. Test chambers and systems for mechanical properties

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Test box and system capable of simulating mechanical property of test piece under freeze-thaw temperature load
  • Test box and system capable of simulating mechanical property of test piece under freeze-thaw temperature load
  • Test box and system capable of simulating mechanical property of test piece under freeze-thaw temperature load

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as Figure 1 to Figure 2 As shown, a test chamber capable of simulating the mechanical properties of specimens under freeze-thaw temperature loads includes a case body 8, a refrigeration device 1 arranged in the case body 8, and a cooling device 1 arranged on the case wall of the case body 8 The atomizing liquid inlet 10 or the atomizing device 13 arranged in the box body 8 .

[0039] Specifically, various components in a freeze-thaw environment are subject to various complex loads: mechanical loads and alternating loads, while the humidity level in the air and whether acid rain has corrosion properties have a great impact on the durability of the components. In the prior art, for the mechanical performance experiment of specimen 7 under freeze-thaw temperature load, stress loading was carried out respectively when specimen 7 was below 0°C and above 0°C, and the final freeze-thaw temperature load was completed through repeated temperature rise and fall. Determinat...

Embodiment 2

[0046] Such as Figure 1 to Figure 2 As shown, this embodiment is further limited on the basis of Embodiment 1: in order to adjust the humidity and temperature in the box body 8 in a timely, efficient and accurate manner, the wall of the box body 8 is also provided with a dry gas Inlet 11 and air convection hole 12. The above dry gas inlet 11 is used to pass dry gas into the box body 8, and the above air convection holes 12 are used for the box body 8 to exhaust from inside to outside. In this solution, the dry gas inlet 11 is connected to a blast drying device 14, and the blast drying device 14 includes an air compressor and a drying tank, the outlet of the air compressor is connected to the inlet of the drying tank, and the drying tank is provided with As the filler of alumina particles, the drying tank is also provided with an alumina heating regeneration device, and the outlet of the drying tank is connected with the drying gas inlet 11 .

[0047] In order to facilitate ...

Embodiment 3

[0052] A system that can simulate the mechanical properties of specimens under freeze-thaw temperature loads, such as Figure 1 to Figure 3 As shown, the system includes a stress loading device 9 and any test chamber provided in any one of the above embodiments. The specimen fixing end of the stress loading device 9 is located inside the box body 8 .

[0053] In the above-mentioned system that can simulate the mechanical properties of the test piece under the freeze-thaw temperature load, the set stress loading device 9 is used to apply the stress that needs to be simulated to the test piece 7, and the above stress loading device 9 is used to apply the stress to the test piece 7. Load tensile stress, compressive stress, alternating stress, etc., such as using the end of the piston rod of a pneumatic cylinder or a hydraulic cylinder to act on the test piece 7, and using a piezoelectric transducer, a displacement amplifier connected in series, and an ultrasonic signal generator a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a test box and a system capable of simulating the mechanical property of a test piece under a freeze-thaw temperature load. The test box comprises a box body, a refrigeration device arranged in the box body, and an atomized liquid inlet formed in the box wall of the box body or an atomization device arranged in the box body. The system comprises the test box and a stress loading device. According to the test box and the system provided by the invention, a stress environment closer to that in a usage state of the test piece can be simulated, so that the detection efficiency is high and a detection result is accurate according to the scheme provided by the invention.

Description

technical field [0001] The invention relates to the technical field of experimental devices for mechanical properties of test pieces, in particular to a test chamber and a system capable of simulating the mechanical properties of test pieces under freeze-thaw temperature loads. Background technique [0002] Freezing and thawing refers to a physical geological action and phenomenon in which the soil layer freezes and thaws when the temperature drops below zero and rises above zero. Most of our country belongs to the type of seasonal frozen soil, which freezes in winter and melts in summer, and the ice exerts huge pressure on the two walls of rock cracks; when the temperature rises, the ice melts, the pressure on the two walls drops sharply, and the two walls move toward the center. push back. In the process of repeated freezing and thawing, the cracks in the rock will expand and increase, so that the stones will be separated. This effect is called freezing and thawing. [0...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01N3/18
CPCG01N3/18
Inventor 袁书成王清远董江峰梁危
Owner SICHUAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com