Composite material long beam strength test device

A technology for strength testing and composite materials, applied in the direction of applying stable bending force to test the strength of materials, measuring devices, and analyzing materials, etc., can solve the problems of no RTM process, no technical publications retrieved, and failure to meet the test requirements, etc., to achieve Avoid premature failure, accurate position and direction, uniform force effect

Active Publication Date: 2021-07-13
CHINA HELICOPTER RES & DEV INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, there is no device for RTM process composite long beam strength test in my country, which cannot meet the above test requirements, and no relevant technical publications at home and abroad have been retrieved

Method used

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  • Composite material long beam strength test device
  • Composite material long beam strength test device
  • Composite material long beam strength test device

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Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0036] see figure 2 , a strength test device for a composite material long beam, characterized in that it includes a fixing device 1, a loading device 2, an actuator fixing device 3, a test piece lateral restraint device 4, and a supporting frame 5. Among them, there are two sets of fixing devices, three sets of loading devices, three sets of actuator fixing devices and two sets of long beam lateral restraint devices.

[0037] see image 3 , ...

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Abstract

The invention belongs to the technical field of composite material tests, and particularly relates to a composite material long beam strength test device. The device includes a long beam fixing device (1), a loading device (2), an actuator fixing device (3), a long beam lateral restraining device (4) and a supporting frame (5). According to the invention, the clamping ends at the two ends of the test piece can uniformly bear the load, and meanwhile, the influence on test loading caused by large bending deformation of the long beam after loading is avoided, the test loading direction is ensured, and the accuracy of the test result is improved; the roller diameter is designed according to the predicted deformation of the test piece, so that the loading direction is vertical to the test piece, and the test piece is uniformly stressed; by means of the actuator fixing device, it is guaranteed that the position and direction of the applied load are accurate.

Description

technical field [0001] The invention belongs to the technical field of composite material testing, and in particular relates to a composite material long beam strength testing device. Background technique [0002] With the continuous development of helicopter models at home and abroad, the medium and small helicopters have gradually developed into large helicopters. From the use of a large number of metal materials to the current use of light-weight and high-strength composite materials in helicopters, the weight of the helicopter is reduced while ensuring the strength. , the frame and beam are the most important components of the body to bear the load. [0003] The fuselage girder of the helicopter adopts the RTM process, and the strength test of the long beam of the fuselage girder test piece is carried out in order to obtain the strength test data of the RTM process part, so as to provide a basis for the subsequent detailed design. The test piece long beam 6 is designed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/20G01N3/04
CPCG01N3/20G01N3/04G01N2203/0023
Inventor 赵丽唐江光郭梓庆
Owner CHINA HELICOPTER RES & DEV INST
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