Low-Velocity Impact Response of Cross-Ply Laminated Sandwich Composites with Hollow and Foam-Filled Z-Pin Reinforced Core

1999 ◽  
Vol 21 (2) ◽  
pp. 84 ◽  
Author(s):  
WS Johnson ◽  
JE Masters ◽  
DW Wilson ◽  
UK Vaidya ◽  
MV Kamath ◽  
...  
Keyword(s):  
Impact Response ◽  
Low Velocity Impact ◽  
Sandwich Composites ◽  
Low Velocity ◽  
Velocity Impact ◽  
Foam Filled

Low Velocity Impact and Compression-After-Impact Response of Z-Pin Reinforced Core Sandwich Composites

2000 ◽  
Vol 122 (4) ◽  
pp. 434-442 ◽  
Author(s):  
U. K. Vaidya ◽  
A. N. Palazotto ◽  
L. N. B. Gummadi
Keyword(s):  
Sandwich Plate ◽  
Experimental Studies ◽  
Impact Response ◽  
Low Velocity Impact ◽  
Sandwich Composites ◽  
Core Journal ◽  
Low Velocity ◽  
Velocity Impact ◽  
Compression After Impact ◽  
Foam Filled

In the current work, sandwich composite structures with innovative constructions referred to as Z-pins, or truss core pins, are investigated. The Z-pin core sandwich construction offers enhanced transverse stiffness, high damage resistance, and multi-functional benefits. The present study deals with analysis of low-velocity impact (LVI) of Z-pin sandwich plate, and experimental studies of compression-after-impact characterization. Experimental studies on LVI of Z-pin sandwich plate considered in the analysis have been reported in Vaidya, et al., 1999, “Low Velocity Impact Response of Laminated Sandwich Composites with Hollow and Foam-Filled Z-Pin Reinforced Core,” Journal of Composites Technology and Research, JCTRER, 21, No. 2, Apr., pp. 84–97, where the samples were subjected to 11, 20, 28, 33, and 40 J of impact energy. The LVI analysis is developed with regards to Z-pin buckling as a primary failure mode (and based on experimental observations). A finite element model accounting for buckling of the pins has been developed and analyzed using ABAQUS. This paper also presents experimental results on compression-after-impact (CAI) studies which were performed on the sandwich composites with Z-pin reinforced core “with” and “without” foam. The experimental LVI tests were performed in Vaidya, et al., 1999, “Low Velocity Impact Response of Laminated Sandwich Composites with Hollow and Foam-Filled Z-Pin Reinforced Core,” Journal of Composites Technology and Research, JCTRER, 21, No. 2, Apr., pp. 84–97. The results indicate that selective use of Z-pin core is a viable idea in utilizing space within the core for sandwich composites in structural applications. [S0094-4289(00)02904-2]

Study on the low-velocity impact response and CAI behavior of foam-filled sandwich panels with hybrid facesheet

2015 ◽  
Vol 132 ◽  
pp. 1129-1140 ◽  
Author(s):  
Bin Yang ◽  
Zhenqing Wang ◽  
Limin Zhou ◽  
Jifeng Zhang ◽  
Lili Tong ◽  
...  
Keyword(s):  
Sandwich Panels ◽  
Impact Response ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Velocity Impact ◽  
Foam Filled
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