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14th November 2019
Updated RheoPower 5.1 package is now available.

24th September 2018
64-bit RheoPower 5.0 analyses still more accurate thanks to developments. Easy to deploy databases. Read more >>

16th April 2017
Tommi Borg visits for your meetings at Chinaplas May 16-19, 2017 - Guangzhou, PR China.

24th November 2015
New published paper "Linear viscoelastic model for different flows based on control theory", Appl. Rheol. Read more >>

7th November 2014
RheoPower 4.3 is also available as true 64-bit for heavy computations. Read more >>

20th August 2014
Tommi Borg gives an oral presentation at The International Conference on Polyolefin Characterization (ICPC) September 21-24, 2014 - Valencia, Spain. >>


SHPB (Split Hopkinson Pressure Bar)

SHPB is data analyzing software for outputs of the special SHPB instrument. The software has been developed originally for Prof. Pääkkönen's exciting research work. In this Hopkinson project it was discovered the that modulus of polymer is about three times higher during the first 0-50 micro seconds at high >1000/s shear rate. With this software and new principle it has been possible to compute for the first time moduls results for these very short time sonar deformations (t<0.0001s).

Traditional and well-known Split-Hopkinson-Pressure-Bar (SHPB) method, which is widely used for dynamic materials testing at very high strain rates up to the order of 103/s. This intelligent principle is used for rocks, aluminum etc., but now it gives us a new understanding of polymers.

SHPB-Software looks as RheoDeveloper program. If you are interested, please contact us. You find here our Contact Information. New information of structure with a small start-up time at a high rate.

Development State

For delievery is needed some coding and tuning for data exchange between your device and software.

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