A device and method for measuring out-of-plane tensile mechanical properties of composite materials

A composite material and external stretching technology, which is applied in the direction of measuring devices, using stable tension/pressure to test the strength of materials, and analyzing materials, can solve problems such as low stiffness, thermal stress matching, and poor alignment, and achieve Less equipment investment, lower thermal expansion coefficient, and lower manufacturing cost

Active Publication Date: 2022-05-03
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a device and method for measuring the out-of-plane tensile mechanical properties of composite materials, so as to solve the problem of low rigidity, poor alignment, thermal stress matching between the pressure roller and the sample, etc. problems, greatly improving the accuracy and reliability of high-temperature experiments, and providing the necessary support for the application of high-temperature resin-based structural composite materials

Method used

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  • A device and method for measuring out-of-plane tensile mechanical properties of composite materials
  • A device and method for measuring out-of-plane tensile mechanical properties of composite materials
  • A device and method for measuring out-of-plane tensile mechanical properties of composite materials

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Embodiment 1

[0041] see Figure 1-7 , a device for measuring out-of-plane tensile mechanical properties of composite materials, including an upper beam 1 and a lower beam 2, the lower beam 2 is arranged at the bottom of the device body, and a guide column is connected to the upper beam 1 and the lower beam 2 3. The bottom end of the guide column 3 is fixedly connected with the lower beam 2, and the upper beam 1 is connected to the guide column 3 by sliding fit; the lower end of the upper beam 1 is connected with the gantry upper pressure roller assembly 4, and the upper end of the lower beam 2 is connected with the gantry frame The lower pressure roller assembly 5, the upper pressure roller assembly 4 of the gantry frame and the lower pressure roller assembly 5 of the gantry frame are connected with an accessory spacer assembly 6.

[0042] The upper pressure roller assembly 4 of the gantry frame includes an upper gantry frame 401, which is fixedly installed on the lower end of the upper be...

Embodiment 2

[0066] see Figure 1-7 , based on Embodiment 1, the difference is that;

[0067] A biaxially oriented mechanical loading device (such as figure 1 shown), the device is mainly composed of lower beam 2, upper beam 1, guide column 3, gantry upper pressure roller assembly 4, gantry lower pressure roller assembly 5, and accessory spacer assembly 6. The upper pressure roller assembly 4 of the gantry frame and the lower pressure roller assembly 5 of the gantry frame can be freely adjusted within 50-160mm (test span) along the upper and lower grooves of the upper beam 1 and lower beam 2 as required.

[0068] figure 2 Diagram of the assembly procedure for the device body. First there is a longitudinal groove in the middle part of the upper beam 1, and this side of the transverse boss is facing down, and the rectangular hole in the middle is aligned with the rectangular boss at the upper end of the accessory spacer assembly 6, and is installed on the annex spacer assembly 6. Align ...

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Abstract

The invention discloses a device and a method for measuring out-of-plane tensile mechanical properties of composite materials, belonging to the technical field of material property detection. A device and method for measuring out-of-plane tensile mechanical properties of composite materials, comprising an upper beam and a lower beam, the lower beam is arranged at the bottom end of the device body, and a guide column is connected to the upper beam and the lower beam , the bottom end of the guide column is fixedly connected with the lower beam, the upper beam is slidably connected to the guide column; the lower end of the upper beam is connected with a gantry frame upper pressing roller assembly, and the upper end of the lower beam is connected with a gantry frame The lower pressing roller assembly, the attachment spacer frame assembly is connected between the gantry upper pressing roller assembly and the gantry lower pressing roller assembly; the invention solves the problem of low rigidity and poor neutrality of the metal fixture under high temperature , the thermal stress matching between the pressure roller and the sample, etc.

Description

[0001] A device and method for measuring out-of-plane tensile mechanical properties of composite materials technical field [0002] The invention relates to the technical field of material performance detection, in particular to a device and method for measuring out-of-plane tensile mechanical properties of composite materials. Background technique [0003] Thick-section composites are expensive, and full-scale measurement is time-consuming and labor-intensive. It is necessary to propose a reliable test method to characterize the mechanical behavior of thick-interface composites. At present, ASTM and MIL-HDBK-17A have proposed sufficient specifications and testing guidelines for the in-plane properties of composite materials, but there is no reliable experimental method for the characterization of the mechanical properties of composite materials along the out-of-plane direction. As the use of thick-section composite laminates increases year by year, for example, composite bl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/08G01N3/18G01N3/02
CPCG01N3/08G01N3/18G01N3/02G01N2203/0003G01N2203/0017G01N2203/0222G01N2203/0226
Inventor 刘刘郝自清韩秀霞邓琳琳王晓宇刘献冲
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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