Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Experimental device and method for measuring depression depth of composite material after impact

A composite material and post-impact technology, which is applied in the field of experimental devices for measuring the depth of pits after impact of composite materials, can solve the problems of difficulty in ensuring the accuracy of maximum depth information, cumbersome procedures, and heavy workload, and achieve convenient pit depth measurement Simple and precise, eliminating the effect of cumbersome procedures

Inactive Publication Date: 2016-04-13
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This point contact measurement method not only has cumbersome procedures and heavy workload, but also it is difficult to ensure the accuracy of the maximum depth information obtained.

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Experimental device and method for measuring depression depth of composite material after impact
  • Experimental device and method for measuring depression depth of composite material after impact
  • Experimental device and method for measuring depression depth of composite material after impact

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The specific structure, working principle and working process of the present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention should not be limited by this.

[0023] figure 1 It is a schematic diagram of the structure principle of the test to measure the depth of the pit after the impact of the composite material. The device comprises a CCD camera 1, a support 2, an electric translation platform 3, a computer 4 and a projector 6; the CCD camera 1 and the projector 6 are arranged above the electric translation platform 3 and are fixed on the support 2; Translate left and right on the translation platform 3; CCD camera 1, electric translation platform 3 and projector 6 are connected with computer 4 through control lines.

[0024] Method provided by the invention comprises the steps:

[0025] 1) The CCD camera 1 and the projector 6 are arranged above the electric translation platfor...

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
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an experimental device and method for the measuring depression depth of a composite material after impact, and belongs to the technical fields of experimental mechanics and non-contact optical test of composite materials. According to the method, a grid line projection measuring technology is combined with an optical triangulation technology, a CCD camera is used to shoot photos of digital grid lines projected onto a plate of the composite material before and after impact, deformation and phase change of the digital grid lines at the surface of the composite-material plate before and after impact are measured by utilizing the phase measurement technology, the depth of an impact depression of the composite-material plate after impact is measured in the full field, and the impact resistance of the composite-field plate the full-field depth information of the depression after impact are obtained. The grid line projection measuring technology used in the invention includes non-contact full-field measurement, and compared with point contact measurement methods including a vernier caliper, a height gauge and the like, tedious procedures of measuring the depths of different positions for multiple times are avoided, influence of uncertainty of the maximal depression depth is reduced, and depth measurement for the depression after impact is more convenient, simpler and more accurate.

Description

technical field [0001] The invention relates to an experimental device and method for measuring the depth of a composite material pit after impact, belonging to the technical fields of experimental mechanics and non-contact optical testing of composite materials, and in particular to an experimental device and method for measuring the depth of a composite material pit after impact. Background technique [0002] The post-impact compression test is an important means to characterize the impact resistance and interlayer performance of composite materials. It is mainly divided into two stages, one is the low-speed impact test of the falling weight under a certain energy, and the other is the compression test after impact. The maximum pit depth and pit depth distribution of composite specimens after falling weight impact are important parameters for their impact resistance and interlayer performance. At present, the main method of measuring the depth of the pit after impact of th...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01B11/22
CPCG01B11/22
Inventor 郝文峰郭广平陈新文马丽婷邓立伟
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com