In situ ice-cream structure mechanical investigation

Fan, Yew Fang (2018) In situ ice-cream structure mechanical investigation. [Project Paper] (Submitted)

Text lp FK 2018 11.pdf Download (6MB)

Abstract

This report shows how to use and upgrade toy bricks, based on the LEGO Mindstonns system, for the construction of a compression tester that is cost effective, comprehensive, portable and flexible. The setup is capable of performing uniaxial presses up to 10mm with velocities up to 14mm/s, for the investigation of in-situ (low temperature) ice cream compression behavior. The use of MATLAB in conjunction with the compression tester has provided greater functionalities in performing desirable action as well as analyzing data collected. Image processing function is adapted in MATLAB to estimate the speed of compression plate that is particularly useful in obtaining the stress-strain curves of tested materials. The recommended motor power level in conducting uniaxial press range from 30% to 70% for a trustworthy result. The results obtained from compression tester shows characteristics property of ice cream is primarily respond as a viscoelastic material. Uniaxial compression and stress relaxation tests that have been carried out show that ice cream exhibited a viscoelastic behavior tended to a liquid one at lower strain rate and viscoelastic solid behavior at higher strain rate. For cyclic compression, texture parameters such as hardness and springiness can be determined. The designed compression tester is proved to deliver a trustworthy trend in the characterization of mechanical behavior of ice cream. However, further improvements on hardware and software are recommended for more accurate and consistent results.

Item Type:	Project Paper
Faculty:	Faculty of Engineering
Depositing User:	Ms Siti Mariam Giman
Date Deposited:	27 Oct 2023 08:14
Last Modified:	27 Oct 2023 08:14
URI:	http://psaspb.upm.edu.my/id/eprint/1609

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