DSIFcalc documentation Initial definitions and naming conventions One-point bend test Experimental results and numerical analysis have shown that during initial stage of impact loading the specimen has no contact with the supports.
Single specimen fracture toughness determination procedure using instrumented impact test.
PhD thesis, Technical Research Centre of Finland, Espoo, 1993. In fact, in this method we have one central support and two symmetrical strikers. Therefore, we suppose that for all types of 3PB test we always have one 'striker' and two 'supports'. This convention should be used for results of Hopkinson split bar tests too. The result of the test is valid only if this rate is sufficiently close to a constant value.