Hierarchical chemomechanical encoding of multi-responsive hydrogel actuators via 3D printing

2019 ◽  
Vol 7 (25) ◽  
pp. 15395-15403 ◽  
Author(s):  
Jérémy Odent ◽  
Sophie Vanderstappen ◽  
Antoniya Toncheva ◽  
Enzo Pichon ◽  
Thomas J. Wallin ◽  
...  
Keyword(s):  
3D Printing ◽  
Environmental Change ◽  
Functionally Graded ◽  
Swelling Behavior ◽  
Controllable Motion ◽  
Graded Structures ◽  
Functionally Graded Structures

A family of multi-responsive hydrogel-based actuators capable of rapid and controllable motion in response to any immediate environmental change is herein demonstrated towards the 3D-printing of functionally graded structures that are encoded with anisotropic swelling behavior.

Vibrations of Functionally Graded Shells

2007 ◽  
Author(s):  
Serge Abrate
Keyword(s):  
Composite Material ◽  
Modulus Of Elasticity ◽  
Poisson’S Ratio ◽  
Functionally Graded ◽  
New Method ◽  
Poisson's Ratio ◽  
Tabular Form ◽  
Graded Structures ◽  
Functionally Graded Structures

The behavior of functionally graded structures has received a great deal of attention in recent years. Usually, these structures are made out of a composite material with a modulus of elasticity, a Poisson’s ratio, and a density that vary through the thickness. The non-uniformity through the thickness introduces coupling between the transverse deformations and the deformations of the mid-surface. Previous publications have shown how to account for these added complexities and have presented extensive results in tabular form. In this article, available results are used to show that the behavior of functionally graded shells is similar to that of homogeneous isotropic shells. It is well known that for isotropic shells, results can be presented in non-dimensional form so that, once results are obtained for one material, they can be simply scaled to obtain the corresponding results for shells made out of another material. The same can then be done for functionally graded shells. In addition, if functionally graded shells behave like homogeneous shells, no new method of analysis is required. The second part of the paper examines why this is true.

Additive manufacturing of composite materials and functionally graded structures using selective heat melting technique

2020 ◽  
Vol 47 ◽  
pp. 243-252 ◽  
Author(s):  
Kalaimani Markandan ◽  
Ruijing Lim ◽  
Pawan Kumar Kanaujia ◽  
Ian Seetoh ◽  
Muhammad Raziq bin Mohd Rosdi ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Composite Materials ◽  
Functionally Graded ◽  
Melting Technique ◽  
Graded Structures ◽  
Functionally Graded Structures
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