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Device and method for measuring extrusion deformation of hole

A technology of measuring device and measuring method, applied in the direction of measuring device, using stable tension/pressure test material strength, instrument, etc., can solve the problem that it is difficult to fully reflect the characteristics of ceramic matrix composite materials, the measurement results are unbelievable, and the measurement error is large. It can improve the measurement accuracy and test effect, solve the relatively large measurement error, and avoid measurement interference.

Pending Publication Date: 2022-05-20
AECC COMML AIRCRAFT ENGINE CO LTD
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Problems solved by technology

[0005] However, the current measurement devices for the pin / pin-hole extrusion performance of ceramic matrix composites have large measurement errors and low precision, and the measurement results are difficult to be trusted; the measurement parameters are single, and it is difficult to fully reflect the characteristics of ceramic matrix composites; And the measurement process is cumbersome, and the success rate of the experiment is low
Under the action of these factors, the further popularization and application of ceramic matrix composites in the field of aero-engine manufacturing has been restricted to a considerable extent.

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  • Device and method for measuring extrusion deformation of hole
  • Device and method for measuring extrusion deformation of hole
  • Device and method for measuring extrusion deformation of hole

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Embodiment Construction

[0056] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is illustrative only, and in no way restricts the disclosure, its application or uses. The present disclosure can be implemented in many different forms and is not limited to the embodiments described here. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that relative arrangements of parts and steps, compositions of materials, numerical expressions and numerical values ​​set forth in these embodiments should be interpreted as illustrative only and not as limiting, unless specifically stated otherwise.

[0057] "First", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distin...

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Abstract

The invention relates to a hole extrusion deformation measuring device and method. The measuring device comprises an experiment board provided with a to-be-measured hole; a step structure is arranged on one surface, facing the experiment plate, of each loading plate, and a first through hole is formed in an area which crosses the step structure and has different thicknesses; a loading screw; the contact clamping ring sleeves the outer side of the experiment plate, is slidably arranged in a gap formed by the step structure and the experiment plate, and is in contact with the peripheral surface of the part, exposed out of the loading plate, of the loading screw; and the extensometer comprises a first pin arranged on the contact clamping ring and a second pin arranged on a set cross section of the experiment board, and is configured to measure a deformation value between the first pin and the second pin when a load is applied to the experiment board. According to the embodiment of the invention, the measurement precision and the test effect of the hole edge extrusion deformation of the ceramic-based composite material can be effectively improved.

Description

technical field [0001] The present disclosure relates to the field of material mechanics measurement, in particular to a measurement device and method for hole extrusion deformation. Background technique [0002] With the development of materials science, more and more composite materials are used in aircraft manufacturing, especially in the manufacture of aero-engines. As a typical example of many composite materials, ceramic matrix composite (CMC) is a composite material composed of ceramics as a matrix and various fibers. It has high temperature resistance, high strength, low modulus, low density, and corrosion resistance. It has the advantages of strong resistance, and has broad application prospects in aerospace hot-end structural components. [0003] For ceramic matrix composites, before they are applied to key components of aero-engines, it is necessary to test their mechanical properties. Hole extrusion performance is an important performance index for the design o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08G01N3/04
CPCG01N3/08G01N3/04G01N2203/0019G01N2203/0423G01N2203/0676G01N2203/0682
Inventor 郭洪宝顾明皓洪智亮李开元
Owner AECC COMML AIRCRAFT ENGINE CO LTD
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