On the (ir)reproducibility of measurements of elongational viscosity using an SER universal testing platform

2013 ◽  
Author(s):  
Petr Filip ◽  
Radek Pivokonsky
Keyword(s):  
Elongational Viscosity ◽  
Testing Platform ◽  
Universal Testing

Measuring the transient extensional rheology of polyethylene melts using the SER universal testing platform

2005 ◽  
Vol 49 (3) ◽  
pp. 585-606 ◽  
Author(s):  
Martin Sentmanat ◽  
Benjamin N. Wang ◽  
Gareth H. McKinley
Keyword(s):  
Extensional Rheology ◽  
Testing Platform ◽  
Universal Testing ◽  
Polyethylene Melts

Study on Universal Testing Platform of Engineering Machinery

2010 ◽  
Vol 33 ◽  
pp. 544-548
Author(s):  
Xiao Qiang Yang ◽  
Ya Ming Gao ◽  
Ying Liu ◽  
Jun Han
Keyword(s):  
Fault Diagnosis ◽  
Hydraulic Testing ◽  
General Purpose ◽  
General Function ◽  
Database Access ◽  
Testing Platform ◽  
Military Equipment ◽  
Hardware System ◽  
Universal Testing ◽  
Control Computer

Due to the multiple types and complexity of fault diagnosis, the general-purpose testing platform of engineering machinery’s hydraulic system is developed for the maintenance of military equipment. The general function and structure of the testing platform is presented. The hardware system consists of modular circuit, integrates control computer of embedded controller with PXI-interfaced modular instrument, program-controlled device, connector and adapter hardware. And the software program comprises data management module, fault diagnosis module coupled to the data acquisition module, signal processing module, experiment condition control module, database access module, system configuration and self-test as well as help module. Further, the hardware characteristics are showed and the principle of hydraulic testing platform is presented. The universal testing platform offers enormous benefits for fault diagnosis and condition monitoring of military equipment and machinery.

Crush Response of Polyurethane Foam-Filled Aluminium Tube Subjected to Axial Loading

2014 ◽  
Vol 875-877 ◽  
pp. 534-541 ◽  
Author(s):  
Chawalit Thinvongpituk ◽  
Nirut Onsalung
Keyword(s):  
Energy Absorption ◽  
Polyurethane Foam ◽  
Testing Machine ◽  
Axial Loading ◽  
Asymmetric Mode ◽  
Pu Foam ◽  
Universal Testing ◽  
Collapse Mode ◽  
Empty Tube ◽  
Foam Filled

In this paper, the experimental investigation of polyurethane (PU) foam-filled into circular aluminum tubes subjected to axial crushing was presented. The purpose of this study is to improve the energy absorption of aluminium tube under axial quasi-static load. The aluminium tube was made from the AA6063-T5 aluminium alloy tubes. Each tube was filled with polyurethane foam. The density of foam was varied from 100, 150 and 200 kg/mP3P including with empty tube. The range of diameter/thickness (D/t) ratio of tube was varied from 15-55. The specimen were tested by quasi-static axial load with crush speed of 50 mm/min using the 2,000 kN universal testing machine. The load-displacement curves while testing were recorded for calculation. The mode of collapse of each specimen was analyzed concerning on foam density and the influence of D/t ratio. The results revealed that the tube with foam-filled provided significantly increment of the energy absorption than that of the empty tube. While the density of foam and D/t ratios increase, the tendency of collapse mode is transformed from asymmetric mode to concertina mode.

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