Electromagnetic experimental device for testing impact mechanical property of composite material

Abstract

The invention discloses an electromagnetic experimental device for testing the impact mechanical property of a composite material. The device comprises a box body, and two elastic bands are fixedly connected to the inner wall of the box body; a pressure sensor is fixedly connected between the two elastic bands; a buffer device is mounted on the side wall of the pressure sensor; the inner wall of the box body is fixedly connected with two symmetrically-arranged U-shaped frames; fixing columns are fixedly connected to the opposite sides of the U-shaped frame, deflection rods are rotatably connected to the joints of the two fixing columns and the U-shaped frame, a connecting rod is rotatably connected to one ends of the two deflection rods, a threaded rod is arranged on the U-shaped frame ina penetrating mode, and a transverse plate is rotatably connected to the end, close to the U-shaped frame, of the threaded rod. Detection of different positions is changed by changing the emission angle of the impact object, experiments of different impact forces can be completed without adjusting the height and the weight, the experiment efficiency is improved, and the experiment is simple and rapid.

Description

technical field [0001] The invention relates to the field of mechanical technology, in particular to an electromagnetic experimental device for testing the impact mechanical properties of composite materials. Background technique [0002] Composite material is a new material formed by optimizing the combination of material components with different properties by using advanced material preparation technology. Generally defined composite materials need to meet the following conditions: Composite materials must be man-made, materials that people design and manufacture according to needs; Composite materials must be composed of two or more materials with different chemical and physical properties. Form, proportion, and distribution are combined, and there are obvious interfaces between the components; it has structural designability, and can be designed for composite structures; composite materials not only maintain the advantages of the material properties of each component, b...

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Problems solved by technology

[0003] The current test devices for the impact mechanical properties of composite materials are tested by the free fall of the hammer head, and the impact force is changed by changing the height of the hammer head and increasing the number of weights. When testing in this way, the free fall process cannot Guaranteed to be vertical, the equipment needs to meet the experimental requirements of various heights, the equipment is relatively large and the structure is complex

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