A novel strengthening method for carbon fiber composite lattice truss structures

2016 ◽  
Vol 153 ◽  
pp. 585-592 ◽  
Author(s):  
Qianqian Wu ◽  
Li Ma ◽  
Linzhi Wu ◽  
Jian Xiong
Keyword(s):  
Carbon Fiber ◽  
Fiber Composite ◽  
Truss Structures ◽  
Carbon Fiber Composite ◽  
Composite Lattice ◽  
Strengthening Method

The Study of Low-Velocity Impact Characteristics and Residual Tensile Strength of Carbon Fiber Composite Lattice Core Sandwich Structures

2011 ◽  
Vol 194-196 ◽  
pp. 117-120 ◽  
Author(s):  
Xai Mei Lu ◽  
Yun Fei Ma ◽  
Shi Xun Wang
Keyword(s):  
Tensile Strength ◽  
Carbon Fiber ◽  
Sandwich Structures ◽  
Fiber Composite ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Carbon Fiber Composite ◽  
Velocity Impact ◽  
Composite Lattice ◽  
Lattice Core

In this paper, low-velocity impact characteristics and residual tensile strength of carbon fiber composite lattice core sandwich structures are investigated experimentally and numerically. Low-velocity impact tests and residual tensile strength tests are simulated by the FE (finite element) software, ABAQUS/Explicit and its subroutine (VUMAT). In order to give more detailed description about the impact damage of the structure and improve modeling accuracy, multi-steps analysis method is employed to simulate impact process and residual tensile strength test in one analysis model. The calculation results computed by the FE model have been compared to the value of experiments, the difference of impact process simulation is about 3.3% and that of tensile strength test simulation is about 12.9%. The calculation error of computation model is acceptable, since unavoidable damage could be introduced in the courses of manufacture, processing and transportation of composite materials, and these damages are determinated difficultly in the computation programs. Next, the degradation tendency chart of residual tensile strength and impact energy threshold Uo of carbon fiber composite lattice core sandwich structures are obtained by the computation value of residual tensile strength after impacted with different impact energy. Previously, this threshold can only be obtained by experiment tests. After the contact force which is bigger than the threshold Uo impact on the sandwich structures, the residual tensile strength of structures are degraded greatly. This conclusion is significant for the design and application of carbon fiber composite lattice core sandwich structures.

High temperature indentation behaviors of carbon fiber composite pyramidal truss structures

2015 ◽  
Vol 131 ◽  
pp. 266-272 ◽  
Author(s):  
Jiayi Liu ◽  
Wufeng Qiao ◽  
Jingxi Liu ◽  
De Xie ◽  
Zhengong Zhou ◽  
...  
Keyword(s):  
High Temperature ◽  
Carbon Fiber ◽  
Fiber Composite ◽  
Truss Structures ◽  
Carbon Fiber Composite ◽  
Pyramidal Truss

Mechanical behavior of carbon fiber composite lattice core sandwich panels fabricated by laser cutting

2012 ◽  
Vol 60 (13-14) ◽  
pp. 5322-5334 ◽  
Author(s):  
J. Xiong ◽  
L. Ma ◽  
A. Vaziri ◽  
J. Yang ◽  
L. Wu
Keyword(s):  
Carbon Fiber ◽  
Mechanical Behavior ◽  
Laser Cutting ◽  
Fiber Composite ◽  
Sandwich Panels ◽  
Carbon Fiber Composite ◽  
Composite Lattice ◽  
Lattice Core

Fabrication and crushing behavior of low density carbon fiber composite pyramidal truss structures

2010 ◽  
Vol 92 (11) ◽  
pp. 2695-2702 ◽  
Author(s):  
Jian Xiong ◽  
Li Ma ◽  
Linzhi Wu ◽  
Bing Wang ◽  
Ashkan Vaziri
Keyword(s):  
Carbon Fiber ◽  
Fiber Composite ◽  
Truss Structures ◽  
Low Density ◽  
Carbon Fiber Composite ◽  
Pyramidal Truss ◽  
Crushing Behavior
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