Fabrication and Testing of Carbon Fiber Reinforced Truss Core Sandwich Panels

材料科学技术（英文）, 2009, 25(4): 547-550.

^1, , ^2, , ^3, , ^4, , ^5,

1.Center for Composite Materials, Harbin Institute of Technology, Harbin 150001, China

2.Center for Composite Materials, Harbin Institute of Technology, Harbin 150001, China

3.Center for Composite Materials, Harbin Institute of Technology, Harbin 150001, China

4.Center for Composite Materials, Harbin Institute of Technology, Harbin 150001, China

5.Center for Composite Materials, Harbin Institute of Technology, Harbin 150001, China

基金项目: 国家自然科学基金(90816024 10872059) LM acknowledges the Progran for New Century Excellent Talents in University(NCET-08-0152) the Program of Excellent Team in Harbin Institute of Technology 国家重点基础研究发展规划(973计划)(2006CB601206)

Fabrication and Testing of Carbon Fiber Reinforced Truss Core Sandwich Panels

Bing Wang ^1, , Linzhi Wu ^2, , Li Ma ^3, , Qiang Wang ^4, , Shanyi Du ^5,

1.Center for Composite Materials, Harbin Institute of Technology, Harbin 150001, China

2.Center for Composite Materials, Harbin Institute of Technology, Harbin 150001, China

3.Center for Composite Materials, Harbin Institute of Technology, Harbin 150001, China

4.Center for Composite Materials, Harbin Institute of Technology, Harbin 150001, China

5.Center for Composite Materials, Harbin Institute of Technology, Harbin 150001, China

Keywords： Sandwich panel

Truss core sandwich panels reinforced by carbon fibers were assembled with bonded laminate facesheets and carbon fiber reinforced truss cores. The top and bottom facesheets were interconnected with truss cores. Both ends of the truss cores were embedded into four layers of top and bottom facesheets. The mechanical properties of truss core sandwich panels were then investigated under out-of-plane and in-plane compression loadings to reveal the failure mechanisms of sandwich panels. Experimental results indicated that the mechanical behavior of sandwich structure under in-plane loading is dominated by the buckling and debonding of facesheets.

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