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The dynamic mechanical properties of most materials can be relatively easily determined up to ~104 s-1 at room temperature with the Hopkinson Split Bar techniques.For many reasons it is, however, increasingly important to know also how the material responds to dynamic loadings at elevated and/or subzero temperatures.In the literature, many variations of low/high temperature Hopkinson Split Bar setups have been presented both for compression, tension, and shear.In compression, for example, two basic approaches for high temperature testing are possible: heating the bars or short sections of them together with the specimen, or heating only the specimen and manipulating the bars and the specimen mechanically to accomplish the testing.In the latter technique, timing of the manipulator operations is critical, especially as regards the time that the specimen is in contact with the pressure bars before the deformation commences.In tension and torsion, the manipulator technique is usually not possible because the specimen has to be permanently fixed to the bars.