Simple finite element modeling method for composite stiffened skin-foam sandwich structure

A composite material and sandwich structure technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of poor stress transfer effect of model nodes, poor stress transfer effect between nodes, poor strain transfer effect, etc., to achieve Easy to master and use, improve stress transfer effect and strain transfer effect, easy to master effect

Inactive Publication Date: 2017-10-24
BEIJING INST OF SPACE LAUNCH TECH +1
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of poor coupling calculation accuracy, poor stress transfer effect between model nodes, poor strain transfer effect, and large modeling workload in the existing modeling method of composite material reinforced skin-foam sandwich structure, this paper The invention innovatively provides a simple finite element modeling method for composite material reinforced skin-foam sandwich structure, which ensures the one-to-one correspondence of nodes through solid model establishment, cutting, shell area and foam

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
  • Simple finite element modeling method for composite stiffened skin-foam sandwich structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The simple finite element modeling method of the composite material reinforced skin-foam sandwich structure of the present invention will be explained and illustrated in detail below in conjunction with the accompanying drawings.

[0028] Such as figure 1 As shown, the present invention innovatively discloses a simple finite element modeling method for a composite material reinforced skin-foam sandwich structure, which is an improvement and optimization of the traditional finite element modeling method. Specifically, the simple finite element modeling method of the composite material reinforced skin-foam sandwich structure provided by the present invention can be realized by Abaqus, and the composite material reinforced skin-foam sandwich structure is modeled under the Abaqus environment, but, in Based on the inspiration of the technical concept provided by the present invention, those skilled in the art may also consider implementing it on other three-dimensional model...

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 discloses a simple finite element modeling method for a composite stiffened skin-foam sandwich structure. The method comprises the steps that 1, a three-dimensional entity model is established; 2, the three-dimensional entity model is partitioned to obtain a foam entity area and an interface; 3, a layer of shell area is established on the interface, composite properties are given to the shell area, and foam material properties are given to the foam entity area; 4, meshing is performed on the shell area and the foam entity area; 5, boundary conditions are set; and 6, submission is performed for calculation. The improved simple finite element modeling method for the composite stiffened skin-foam sandwich structure is proposed creatively, the modeling workload is greatly reduced, coupling calculation precision is effectively improved, and therefore the stress transmission effect and the strain transmission effect between finite element model nodes are improved.

Description

technical field [0001] The invention relates to the technical field of manufacturing a composite material reinforced skin-foam sandwich structure, and more specifically, the invention is a simple finite element modeling method for a composite material reinforced skin-foam sandwich structure. Background technique [0002] Compared with the traditional metal structure, the composite material reinforced skin-foam sandwich structure has higher specific stiffness and specific strength, the material strength can be fully utilized, and it has the advantages of excellent mechanical properties, so it is more and more widely used In the design of lightweight structure. [0003] In the design process of composite reinforced skin-foam sandwich structure, the conventional modeling method is: firstly, the composite reinforced skin finite element model and the foam finite element model are respectively established, and then the composite reinforced The element model is assembled with 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
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06F17/50
CPCG06F30/23
Inventor 云新尧王华吉赵衡柱邢春鹏吴新跃
Owner BEIJING INST OF SPACE LAUNCH TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap