In June 2017 we have successfully tested a P-MSF impact module. A 2.5 ton drop test was conducted to replicate conditions encountered in an automotive impact. The work has been supported by Transurban with an Innovation Grant.
P-MSF, a novel material invented and developed by our research group was used to manufacture a cylindrical crash element. Its controlled deformation allowed to safely arrest a 2.5 ton concrete block released from an elevation of 5 meters. A short video of the Project can be found below.
Prof. Rossmanek (second from the left) visited our group to discuss a possible collaboration between the University of Newcastle and the University of Applied Sciences Stralsund. Prof. Rossmanek has been driving the development of Formula SAE in Germany and will support this year’s event in Melbourne as a judge.
In the framework of an ongoing collaboration with the University of Maribor (Slovenia) Prof. Matej Vesenjak (on the right) visited our research team in November 2016. Work was focused on the dynamic testing of metallic foam material and the creation of an editorial for a special issue in Materials.
Our successful work on energy absorbing materials has attracted the Newcastle Innovation award. Further details can be found here.
Our paper entitled “On the compressive behaviour of high porosity expanded Perlite-Metal Syntactic Foam (P-MSF)” has been accepted for publication in the Journal of Alloys and Compounds 691 (2017) 690-697:
A high porosity Perlite-Metal Syntactic Foam (P-MSF) is produced by the pre-compaction of a packed bed of expanded perlite particles prior to counter gravity infiltration with molten aluminium. The density of the resulting high porosity (>70 vol%) syntactic foam is in the range of 0.72e0.98 g/cm3, depending on the particle pre-compaction pressure and the number of compaction steps. Compressive testing is carried out following the ISO 13314 standard to characterise the mechanical properties of this novel material. Furthermore, micro-computed tomography scans are performed in order to investigate its mesostructure. The geometrical analysis revealed that the densification procedure generates a porosity gradient in the direction of the compressive force. This gradient is found to affect the deformation mechanism and thus the mechanical properties of high porosity P-MSF.
I had the honor to present a paper at the conference focusing on Materials for the 21st Century: From design to application. A video of the presentation can be found online (1st talk in Session 3)
I am proud to support the the 2nd Australasian Conference on Computational Mechanics (ACCM2015) in Brisbane, Nov 30 to Dec 1 2015 as a local organizer. Please find more information here.
Our Project on advanced roadside barrier systems with Road Toll Provider Transurban was mentioned in the local media.
Transurban’s Innovation Grant Scheme has enabled a new research Project focused on the development of Advanced Roadside Barrier Systems.
Conventional roadside safety barriers are used in large numbers and thus are optimized for cost efficiency. However, they do have significant limitations in situations that require high energy absorption, in particular in confined spaces. Examples are frontal impacts with stationary objects such as solid lane separators, tunnel emergency bays or bridge pillars. To address this shortcoming, the Project develops high-performance roadside safety barriers. A recently invented energy absorbing material, perlite-metal syntactic foam (P-MSF), will be optimized for kinetic energy absorption and integrated in these barrier systems.
More information can be found in the following media release: MR_TCL_announces_innovation_grant_recipients
Our manuscript has been accepted in Materials Science and Engineering C 57 (2015) 288–293.
The paper addresses the mechanical characterization of polycaprolactone (PCL)–bioglass (FastOs®BG) composites
and scaffolds intended for use in tissue engineering. Tissue engineering scaffolds support the self-healing
mechanism of the human body and promote the regrowth of damaged tissue. These implants can dissolve
after successful tissue regeneration minimising the immune reaction and the need for revision surgery. However,
their mechanical properties should match surrounding tissue in order to avoid strain concentration and possible
separation at the interface. Therefore, an extensive experimental testing programme of this advanced material
using uni-axial compressive testing was conducted. Tests were performed at low strain rates corresponding to
quasi-static loading conditions. The initial elastic gradient, plateau stress and densification strain were obtained.
Tested specimens varied according to their average density and material composition. In total, four groups of
solid and robocast porous PCL samples containing 0, 20, 30, and 35% bioglass, respectively were tested. The addition
of bioglass was found to slightly decrease the initial elastic gradient and the plateau stress of the biomaterial