Deformation and failure of hybrid composite sandwich beams with a metal foam core under quasi-static load and low-velocity impact

2020 ◽  
Vol 242 ◽  
pp. 112175 ◽  
Author(s):  
Wei Zhang ◽  
Qinghua Qin ◽  
Jianfeng Li ◽  
Kaikai Li ◽  
L.H. Poh ◽  
...  
Keyword(s):  
Hybrid Composite ◽  
Static Load ◽  
Metal Foam ◽  
Low Velocity Impact ◽  
Foam Core ◽  
Sandwich Beams ◽  
Low Velocity ◽  
Deformation And Failure ◽  
Velocity Impact ◽  
Composite Sandwich

Study on the Residual Compressive Strength of a Composite Sandwich Panel with Foam Core after Low Velocity Impact

2012 ◽  
Vol 430-432 ◽  
pp. 484-487 ◽  
Author(s):  
Zong Hong Xie ◽  
Jiang Tian ◽  
Jian Zhao ◽  
Wei Li
Keyword(s):  
Compressive Strength ◽  
Failure Criterion ◽  
Sandwich Panel ◽  
Low Velocity Impact ◽  
Foam Core ◽  
Low Velocity ◽  
Velocity Impact ◽  
Residual Compressive Strength ◽  
Composite Sandwich ◽  
The Impact

The residual compressive strength of a foam core sandwich panel after low-velocity impact was studied by using experimental and analytical methods. The test specimens were compressed uniaxially after they were subjected to a low-velocity-impact. From the observation in the test, one can conclude that the subsequent core crushing around the impact region is the major failure mode in the sandwich structure. A failure criterion named Damage Propagation Criterion was proposed to predict the residual compressive load bearing capability of the low-velocity impacted composite sandwich panel. The characteristic value used in this failure criterion can be calculated by an analytical model developed or by conducting the Sandwich Compression after Impact test.

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