Dynamic crushing behavior of functionally graded honeycomb structures with random defects

2016 ◽  
Vol 107 (9) ◽  
pp. 783-789 ◽  
Author(s):  
Tao Fan
Keyword(s):  
Functionally Graded ◽  
Honeycomb Structures ◽  
Crushing Behavior ◽  
Random Defects ◽  
Dynamic Crushing

Dynamic crushing behavior of random and functionally graded metal hollow sphere foams

2013 ◽  
Vol 561 ◽  
pp. 352-361 ◽  
Author(s):  
Jianhui Fan ◽  
Jianjun Zhang ◽  
Zhihua Wang ◽  
Zhiqiang Li ◽  
Longmao Zhao
Keyword(s):  
Hollow Sphere ◽  
Functionally Graded ◽  
Crushing Behavior ◽  
Dynamic Crushing

Out-of-plane dynamic crushing behavior of joint-based hierarchical honeycombs

2020 ◽  
pp. 109963622090978
Author(s):  
Yong Tao ◽  
Weiguo Li ◽  
Tianbao Cheng ◽  
Zhonggang Wang ◽  
Liming Chen ◽  
...  
Keyword(s):  
Out Of Plane ◽  
Crushing Behavior ◽  
Dynamic Crushing

Parameter Effects on Dynamic Crushing Behavior of Aluminum Staggered Kelvin Cellular Metal

2014 ◽  
Vol 703 ◽  
pp. 385-389 ◽  
Author(s):  
Xiao Bing Dang ◽  
Kai He ◽  
Jiu Hua Li ◽  
Qi Yang Zuo ◽  
Ru Xu Du
Keyword(s):  
Finite Element ◽  
Base Material ◽  
Element Model ◽  
Edge Length ◽  
Shell Elements ◽  
Structure Characteristics ◽  
Cellular Metal ◽  
Crushing Behavior ◽  
Full Factorial ◽  
Dynamic Crushing

This paper is aimed at investigating the parameter effects on dynamic crushing behavior of staggered Kelvin cellular metal using finite element method. The geometrical characteristics of the staggered cellular structure were analyzed and the finite element model was constructed using shell elements. A full factorial Design of Experiment simulation was carried out and four individual factors including two structure characteristics of the cellular metals and two mechanical parameters of the base material were selected, namely cell edge length, cell wall thickness, yield stress and tangent modulus. Their single and interaction effects on plateau stress, densification strain and densification strain energy were mainly researched. From the results it could be seen that the structure characteristics were a little more important than the base material properties for aluminum staggered Kelvin cellular metal.

Dynamic Crushing Behavior of the High-Density Closed-Cell Foams

2011 ◽  
Vol 306-307 ◽  
pp. 485-488
Author(s):  
Wei Chen ◽  
Zi Xing Lu
Keyword(s):  
Aspect Ratio ◽  
Loading Rate ◽  
High Density ◽  
Stress Strain ◽  
Constant Loading ◽  
Closed Cell ◽  
Crushing Behavior ◽  
Strain Model ◽  
Constant Loading Rate ◽  
Dynamic Crushing

The face-centered cubic model is used to investigate the dynamic crushing behavior of high density closed-cell foams. The influences of the constant loading rate and the specimen aspect ratio on the crushing stress were discussed. It is demonstrated that the crushing stress is more sensitive to the constant loading rate than the specimen aspect ratio. To describe the dynamic crushing behavior of the foam theoretically, the idealized rigid-perfectly plastic-locking (RPPL) stress-strain model is extended to a more general case, in which both the density and the cross-section area are discontinuous. The good agreement between the finite element results and theoretical results confirms that the dynamic crushing behavior of foam can be described by the modified RPPL stress-strain model.

Dynamic crushing behavior and energy absorption of graded lattice cylindrical structure under axial impact load

2018 ◽  
Vol 127 ◽  
pp. 333-343 ◽  
Author(s):  
Liming Chen ◽  
Jian Zhang ◽  
Bing Du ◽  
Hao Zhou ◽  
Houchang Liu ◽  
...  
Keyword(s):  
Energy Absorption ◽  
Impact Load ◽  
Axial Impact ◽  
Cylindrical Structure ◽  
Crushing Behavior ◽  
Graded Lattice ◽  
Dynamic Crushing
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