Anti-tetrachiral auxetic structures fabricated by material extrusion: numerical and experimental investigation on influence of design parameters on mechanical properties under compressive loading
by Soham Teraiya; Swapnil Vyavahare; Shailendra Kumar
International Journal of Materials Engineering Innovation (IJMATEI), Vol. 15, No. 1, 2024

Abstract: The present article describes a numerical and experimental investigation on mechanical properties of anti-tetrachiral auxetic structures under compressive loading. The structures of acrylonitrile butadiene styrene material are fabricated by material extrusion technique of additive manufacturing. The influence of design parameters namely node radius and ligament thickness is studied on responses including strength, modulus and specific energy absorption (SEA) of in-plane and out-of-plane oriented structures. Experiments are planned using face-centred central composite design. From the experimental study, it is found that both design parameters significantly influence strength, modulus and SEA of structures. Also, it is observed that the stresses in plateau region of stress-strain curve remain almost constant till the densification phase during compressive loading of in-plane oriented structure, while the strength and modulus are high in out-of-plane oriented structure. Further, regression models for strength, modulus and SEA are developed, and optimisation of design parameters is performed to maximise the responses.

Online publication date: Mon, 25-Mar-2024

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Materials Engineering Innovation (IJMATEI):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com