Flexural Properties of Grooved Perforation Sandwich Composites

武汉理工大学学报-材料科学版(英文版), 2010, 25(4): 583-587. doi: 10.1007/s11595-010-0048-5

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

1.College of Civil Engineering, Nanjing University of Technology, Nanjing 210009, China

2.College of Civil Engineering, Nanjing University of Technology, Nanjing 210009, China

3.College of Civil Engineering, Nanjing University of Technology, Nanjing 210009, China

4.College of Civil Engineering, Nanjing University of Technology, Nanjing 210009, China

基金项目: the National Natural Science Foundation of China(50978134) the Special Prophase Project on Basic Research of The National Department of Scientific and Technology(2008CB617613) the Research Award Fund for Young Teachers of Nanjing University of Technology

Flexural Properties of Grooved Perforation Sandwich Composites

FANG Hai ^1, , LIU Weiqing ^2, , LU Weidong ^3, , WAN Li ^4,

1.College of Civil Engineering, Nanjing University of Technology, Nanjing 210009, China

2.College of Civil Engineering, Nanjing University of Technology, Nanjing 210009, China

3.College of Civil Engineering, Nanjing University of Technology, Nanjing 210009, China

4.College of Civil Engineering, Nanjing University of Technology, Nanjing 210009, China

Keywords： vacuum infusion molding process (VIMP)

Selecting H-60 PVC foam, four-axis E-glass non-woven fabric and vinyl resin, a type of innovative reinforced sandwich composite as grooved perforation sandwich (GPS) were fabricated by VIMP.The interracial structure between the face and core of the sandwich is innovative because of the acuminate grooves in both sides of foam core and the holes perforated along core's height. The fabrication results show that VIMP is a high-speed and cost-effective manufacturing method. The mechanical properties of the reinforeed foam core were tested. The typical flexural failure modes of sandwich specimens were observed.The flexural stiffness and ultimate bearing capacity of sandwich were studied by ordinary sandwich beam theory and finite element method.

参考文献

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Flexural Properties of Grooved Perforation Sandwich Composites

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