Apparatus and method for testing mechanical properties of fiber-reinforced composite materials during degradation

A composite material and fiber-reinforced technology, which is applied in the direction of measuring devices, applying stable tension/pressure to test the strength of materials, and analyzing materials, can solve the problem of insufficient design of environmental factors for fiber-reinforced composite materials and research work on the degradation of fiber-reinforced composite materials Limited, material mechanical properties decline and other issues
CN109115594BActive Publication Date: 2020-10-23NORTHEASTERN UNIV LIAONING
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
NORTHEASTERN UNIV LIAONING
Publication Date
2020-10-23

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Abstract

The invention relates to the technical field of testing equipment, and specifically to a device and method for testing the mechanical properties of fiber-reinforced composite materials during degradation, including a mobile variable-speed exciter, a continuously variable transmission, a clamp, a fixed frame, a support, a base plate, and a ball screw. , transmission system, multi-functional environmental box, ventilation device, vibration damping fixed plug, screw drive plate, main motor, auxiliary motor, vibrating needle device, composite beam. This tester can stretch and vibrate fiber-reinforced composite beams and introduce environmental factors. There are five factors: vibration, temperature, humidity, air oxygen content and ultraviolet intensity. It can not only achieve a single load or environmental factor loading, but also The above factors can be combined arbitrarily. Then the environmental factors adjusted according to the requirements can maintain the mechanism, which can be combined with stretching and vibration as above. In addition, the thermal environment provided by this test chamber has a temperature gradient.
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Description

technical field

[0001] The invention relates to the technical field of testing equipment, in particular to a device and method for testing the mechanical properties of fiber-reinforced composite materials when degraded, and a device capable of measuring the mechanical properties of fiber-reinforced composite materials when degraded. Background technique

[0002] Fiber-reinforced composite materials have high specific strength, high specific modulus, good thermal stability, and certain damping and vibration reduction capabilities, so they are widely used in important fields such as aviation, aerospace, ships, and weapon industries. At present, there are a large number of various composite structural parts made of this type of material in engineering practice, such as composite wings used in helicopters and jet aircraft, high-temperature turbine blades made of fiber / ceramic matrix composites in aero-engines, etc. . Because composite materials and structures are often in a the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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