Karanpal Singh, Sachdeva (2017) Making novel honeycombs & testing their properties. Coursework Masters thesis, University of Southern Queensland. (Unpublished)
Abstract
The phenomenon of adding porosity at a micro level in different varieties of materials (including metal, ceramics and polymers) has evidently enhanced mechanical properties, heat capacity, specific energy absorption and other desirable properties exceptionally. There are many important factors on which the mechanical behaviour of the hierarchical honeycombs depends such as the architectural organization of different topologies, hierarchical order and dimensional parameters, mechanical properties of the material and distribution of the material. An overview and assessment of the available and conventional cellular structure manufacturing processes lead to selection of Additive manufacturing to produce hierarchical honeycomb lattices with high dimensional accuracy. Essentially the present paper investigates and validates through experiments, the alteration of specific stiffness and specific compressive strength by introducing the phenomenon of hierarchy in the honeycomb structures. Selected the triangular-hexagonal topology due to its high structural stiffness under in-plane loading, out of plane bending and compressive and in-plane compressive loading tests have been performed. Through test results the effective specific stiffness and compressive strength was calculated and compared with the results from theoretical expressions of the same and keeping the experimental average relative density the constant. In comparison it was observed that the out of plane stiffness of experimental was found to be 0.87% of theoretical, which is approximately validating the hierarchical expression. Whereas the in-plane specific stiffness and compression strength of experimental is ~ 1.5 times of theoretical. Unexpectedly, the out of plane experimental specific compressive strength, which is 0.33 times of theoretical. Interestingly, wide spectrum of hierarchical lattices can be developed and expressions can be validated.
|
Statistics for this ePrint Item |
| Item Type: | Thesis (Non-Research) (Coursework Masters) |
|---|---|
| Item Status: | Live Archive |
| Additional Information: | Current UniSQ staff and students can request access to this thesis. Please email research.repository@unisq.edu.au with a subject line of SEAR thesis request and provide: Name of the thesis requested and Your name and UniSQ email address. |
| Faculty/School / Institute/Centre: | Current - Faculty of Health, Engineering and Sciences - No Department (1 Jul 2013 -) |
| Supervisors: | Banerjee, Sourish |
| Qualification: | Master of Engineering Sciences |
| Date Deposited: | 08 Jul 2026 22:50 |
| Last Modified: | 08 Jul 2026 22:50 |
| Uncontrolled Keywords: | Hierarchy, Honeycomb, Triangular-hexagonal, Comparison, Experiment |
| URI: | https://sear.unisq.edu.au/id/eprint/53218 |
Actions (login required)
 |
Archive Repository Staff Only |
