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Angle-variable bootstrap type composite material impact strength testing device

A composite material and impact strength technology, which is applied in the field of bootstrapping composite material impact strength testing devices, can solve problems such as magnetic field effects, and achieve the effect of simple structure and convenient use.

Inactive Publication Date: 2021-01-01
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, a bootstrap impact strength testing device and testing method disclosed in the existing patent CN105910924A, in order to avoid the need for the operator to manually lift the hammer to a certain height, the hammer is lifted to a certain height through an electromagnetic chuck to avoid a large number of Personnel operation and safety hazards, but if a hammer with a large mass is used, a high-power electromagnetic chuck must be used, and the magnetic field generated by it may affect the surrounding equipment

Method used

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  • Angle-variable bootstrap type composite material impact strength testing device
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  • Angle-variable bootstrap type composite material impact strength testing device

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Embodiment Construction

[0028] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0029] This invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, components are exaggerated for clarity.

[0030] Such as figure 1 As shown, the present invention discloses a variable-angle bootstrap impact strength testing device for composite materials, which includes a drop frame, a drop weight assembly and a hydraulic support plate;

[0031] The falling frame includes a base, a first pillar, and a second pillar, wherein the first pillar and the second pillar are arranged parallel to each other and vertically, and their lower ends are vertically fixed to the base; the first pillar, The...

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Abstract

The invention discloses an angle-variable bootstrap type composite material impact strength testing device which comprises a falling frame, a drop hammer assembly and a hydraulic supporting plate. Thefalling frame comprises a base, and a first support column and a second support column which are vertically arranged on the base, the drop hammer assembly comprises a motor, a fixed pulley, a steel cable, a detacher, a hanger, a drop hammer, a first fin plate and a second fin plate, and the hanger is arranged at the upper end of the drop hammer. The motor is arranged on the base, and the fixed pulley is arranged at the top end of the second stand column. One end of the steel cable is fixed on an output shaft of the motor, and the other end is connected with the detacher after passing throughthe fixed pulley. The hydraulic supporting plate is arranged on the base exactly below the drop hammer and comprises a bottom plate, a containing plate, a first electric hydraulic rod, a second electric hydraulic rod, a third electric hydraulic rod and a fourth electric hydraulic rod. The device is simple in structure and is convenient to use, and can test the composite material under specified impact strength and specified impact angle.

Description

technical field [0001] The invention relates to the technical field of composite material experiments, in particular to a variable-angle bootstrapped composite material impact strength testing device. Background technique [0002] Composite materials are widely used in automotive engineering, aerospace engineering and other fields due to their high specific stiffness and specific strength. After the preparation of composite materials with different braided structures, reinforcements, and matrixes is completed, tests such as static strength and impact strength are required to detect their mechanical properties. [0003] Commonly used impact strength tests include pendulum impact test, drop weight impact test, etc. For example, a bootstrap impact strength testing device and testing method disclosed in the existing patent CN105910924A, in order to avoid the need for the operator to manually lift the hammer to a certain height, the hammer is lifted to a certain height through a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/303G01N3/02
CPCG01N3/02G01N3/303G01N2203/0039G01N2203/0641G01N2203/0676G01N2203/0682
Inventor 张宏建胡洋崔海涛温卫东
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS