Non-coaxial bidirectional synchronous compression loading device and method thereof

A two-way synchronization and loading device technology, which is applied in the direction of measuring devices, using stable bending force to test the strength of materials, instruments, etc., can solve the problems that the dynamic I/II type interlaminar fracture experiment cannot be realized, and achieve reliable and reliable experimental methods. Controllable Effects of Experimental Manipulation

Pending Publication Date: 2021-10-08
NORTHWESTERN POLYTECHNICAL UNIV
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  • Abstract
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Problems solved by technology

[0008] The main purpose of this application is to provide a non-coaxial bidirectional synchronous compression loading device and its method to solve the problem that the dynamic I / II type interlaminar fracture experiment cannot be realized in the prior art

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  • Non-coaxial bidirectional synchronous compression loading device and method thereof
  • Non-coaxial bidirectional synchronous compression loading device and method thereof
  • Non-coaxial bidirectional synchronous compression loading device and method thereof

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[0025] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0026] The technical solutions provided by various embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

[0027] This application relates to the testing technology of type I / II dynamic interlaminar fracture toughness of continuous fiber reinforced composite materials, specifically an e...

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Abstract

The invention discloses a non-coaxial bidirectional synchronous compression loading device and method. The device comprises a first height-adjustable loading platform and a second height-adjustable loading platform, wherein the first height-adjustable loading platform is provided with a first compression loading gun and a first waveguide rod, a second compression loading gun and a second waveguide rod are arranged on the second height-adjustable loading platform, a single-arm bending sample is arranged between the first waveguide rod and the second waveguide rod, the first compression loading gun generates a first compression stress wave and transmits the first compression stress wave to the first waveguide rod, the second compression loading gun generates a second compression stress wave and transmits the second compression stress wave to the second waveguide rod, the first compression stress wave and the second compression stress wave simultaneously reach the single-arm bending sample so as to achieve non-coaxial bidirectional synchronous dynamic loading, and the height of the first waveguide rod is different from that of the second waveguide rod. The device can be used for measuring the dynamic interlaminar fracture toughness of the composite material.

Description

technical field [0001] The present application relates to the testing technology of type I / II dynamic interlaminar fracture toughness of continuous fiber reinforced composite materials, in particular to a non-coaxial bidirectional synchronous compression loading device and method thereof. Background technique [0002] Continuous fiber reinforced composites have been widely used in aviation, aerospace, wind power generation and other fields due to their high specific stiffness, specific strength and excellent fatigue properties. However, the interlayer matrix of composite materials is brittle and without any reinforcing phase, so interlayer fracture is very easy to occur, that is, delamination. Delamination damage will affect the integrity of the composite structure and reduce the residual strength of the composite. On the one hand, under dynamic impact loads, composite materials are extremely prone to delamination damage, and during the service process of composite material...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/20G01N3/02
CPCG01N3/20G01N3/02G01N2203/0003G01N2203/0023G01N2203/005G01N2203/0055G01N2203/0067G01N2203/0218G01N2203/04G01N2203/0682G01N2203/0676
Inventor 李玉龙刘会芳汤忠斌朱北晗
Owner NORTHWESTERN POLYTECHNICAL UNIV
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