Debonding characteristics and strengthening mechanics of all-CFRP sandwich beams with interface-reinforced honeycomb cores

2021 ◽  
pp. 109157
Author(s):  
Xingyu Wei ◽  
Pengcheng Xue ◽  
Qianqian Wu ◽  
Yan Wang ◽  
Jian Xiong
Keyword(s):  
Sandwich Beams ◽  
Honeycomb Cores

Bending response of carbon fiber composite sandwich beams with three dimensional honeycomb cores

2014 ◽  
Vol 108 ◽  
pp. 234-242 ◽  
Author(s):  
Jian Xiong ◽  
Li Ma ◽  
Ariel Stocchi ◽  
Jinshui Yang ◽  
Linzhi Wu ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Fiber Composite ◽  
Three Dimensional ◽  
Sandwich Beams ◽  
Carbon Fiber Composite ◽  
Composite Sandwich ◽  
Honeycomb Cores ◽  
Bending Response

Quasi-Static Three-Point Bending of Carbon Fiber Sandwich Beams With Square Honeycomb Cores

2011 ◽  
Vol 78 (3) ◽  
Author(s):  
B. P. Russell ◽  
T. Liu ◽  
N. A. Fleck ◽  
V. S. Deshpande
Keyword(s):  
Carbon Fiber ◽  
Fiber Composite ◽  
Fe Model ◽  
Sandwich Beams ◽  
Carbon Fiber Composite ◽  
Three Point Bending ◽  
Collapse Mechanisms ◽  
Honeycomb Cores ◽  
Analytical Expressions ◽  
Good Agreement

Sandwich beams comprising identical face sheets and a square honeycomb core were manufactured from carbon fiber composite sheets. Analytical expressions were derived for four competing collapse mechanisms of simply supported and clamped sandwich beams in three-point bending: core shear, face microbuckling, face wrinkling, and indentation. Selected geometries of sandwich beams were tested to illustrate these collapse modes, with good agreement between analytic predictions and measurements of the failure load. Finite element (FE) simulations of the three-point bending responses of these beams were also conducted by constructing a FE model by laying up unidirectional plies in appropriate orientations. The initiation and growth of damage in the laminates were included in the FE calculations. With this embellishment, the FE model was able to predict the measured load versus displacement response and the failure sequence in each of the composite beams.

Sign in / Sign up

Export Citation Format

Share Document