A Higher-order Three-scale Reduced Homogenization Approach for Nonlinear Mechanical Properties of 3D Braided Composites

2021 ◽  
pp. 106684
Author(s):  
Zhiqiang Yang ◽  
Yi Sun ◽  
Shanqiao Huang ◽  
Zihao Yang
Keyword(s):  
Mechanical Properties ◽  
Higher Order ◽  
Braided Composites ◽  
3D Braided Composites ◽  
Nonlinear Mechanical ◽  
Homogenization Approach

scholarly journals An Efficient Method for Geometric Modeling of 3D Braided Composites

2016 ◽  
Vol 11 (4) ◽  
pp. 155892501601100 ◽  
Author(s):  
Qi Wang ◽  
Ronghua Zhang ◽  
Jianming Wang ◽  
Yanan Jiao ◽  
Xiaohui Yang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Efficient Method ◽  
Geometric Modeling ◽  
Three Dimensional ◽  
Structure Design ◽  
New Method ◽  
Braided Composites ◽  
3D Braided Composites ◽  
Cad Simulation ◽  
Geometric Study

To estimate the precise mechanical properties of a three-dimensional (3D) braided composite, a geometric study is needed. Because of the complexity of the yarn paths inside the preform, the geometric modeling for 3D braided composites is always time consuming. In this paper, an efficient method, namely preform boundary reflection (PBR), is proposed for motion model construction in geometric studies. Furthermore, a CAD simulation system using novel combinations of parameters was developed for integral geometric descriptions of 3D braided preforms. Compared with the traditional method, the new method significantly simplifies the simulation process without affecting the precision of geometric structure. As a result, the structure design for composite preforms is effectively accelerated. The new method establishes a foundation for microstructure and mechanical properties analysis of preforms with complex geometric structures.

Finite Element Analysis of Thermo-Mechanical Properties of 3D Braided Composites

2013 ◽  
Vol 21 (2) ◽  
pp. 325-340 ◽  
Author(s):  
Li-li Jiang ◽  
Guo-dong Xu ◽  
Su Cheng ◽  
Xia-mei Lu ◽  
Tao Zeng
Keyword(s):  
Mechanical Properties ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Braided Composites ◽  
Element Analysis ◽  
3D Braided Composites

Tensile and Bending Strengths of TR-30s Carbon Fiber Three Dimensional Braided Composites at Different Temperature

2010 ◽  
Vol 97-101 ◽  
pp. 1616-1619 ◽  
Author(s):  
Yun Fei Guo ◽  
Jian Yang ◽  
Ye Hong He ◽  
Jia Lu Li
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Carbon Fiber ◽  
Bending Strength ◽  
Three Dimensional ◽  
Effect Of Temperature ◽  
Braided Composites ◽  
3D Braided Composites ◽  
Pass Through ◽  
Carbon Fiber Epoxy

With the development of technology, composites are used more broadly, especially at different temperature. So it is very important to research the mechanical properties of composites at different temperature. Three dimensional braided composites are new composites with high performances, in which fiber-tows are interlacing in space with multi-direction and pass through the thickness to form a no-laminated and integrated structure. However researches on the mechanical properties of three dimensional braided composites are almost at room temperature. In this paper, the tensile and bending strengths of three dimensional braided composites (TR-30s carbon fiber/epoxy) at 23 oC and 150 oC are researched respectively. The results indicate that the effect of temperature on the tensile strength and bending strength of 3D braided composites is obviously different. The average tensile strength of 3D braided composites at 150 oC is almost the same as that at 23 oC. However the average bending strength of 3D braided composites at 150 oC is mush lower than that at 23 oC. This means that the effect of temperature on different mechanical properties is different and application temperature should be taken care of when 3D braided composites bear different kind of loads.

Predicting Mechanical Properties of 3D Braided Composites Using a Helix Geometry Model

2011 ◽  
Vol 19 (4-5) ◽  
pp. 397-400 ◽  
Author(s):  
Lili Jiang ◽  
Tao Zeng ◽  
Shi Yan ◽  
Dai-ning Fang ◽  
Yu Gu
Keyword(s):  
Mechanical Properties ◽  
Braided Composites ◽  
Geometry Model ◽  
3D Braided Composites ◽  
Helix Geometry

Finite Element Modeling Method of 3D Braided Composites Based on ICT Technique

2012 ◽  
Vol 236-237 ◽  
pp. 16-20
Author(s):  
Shu Yong Wang ◽  
Jian Fu ◽  
Qian Li Wang
Keyword(s):  
Mechanical Properties ◽  
Finite Element ◽  
Composite Materials ◽  
Finite Element Model ◽  
Finite Element Modeling ◽  
Element Model ◽  
Braided Composites ◽  
Element Modeling ◽  
3D Braided Composites ◽  
The Finite Element Model

A finite element modeling method based on industrial computed tomography (ICT) technique is proposed to address the insufficient accuracy of traditional grinding method for the meso-structure analysis of composite materials. In this method, the slice images of 3D composites are first acquired by ICT technique. And then, the internal meso-structure images of composite materials are obtained through the digital image processing to the slice images. Finally the meso-structure images are converted to vector format and inputted ANSYS to build the finite element model for the analysis of the mechanical properties. The experimental results show that this method can establish the finite element model and reveal the internal structure and the inherent mechanical properties of composite materials. These researches provide a reference for the manufacture processing of 3D braided composites, and the theoretical basis for the optimal design and performance evaluation. It would be of significance for the improvement of the composites mechanical properties.

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