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| THE INERTIA EFFECT OF THE COMPRESSIBLE CONCRETE MATERIAL TESTS IN SHPB SYSTEM |
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Abstract The inertia effect is one of the main sources to cause the stress nonuniformity and triaxial stress state in a concrete test utilizing the large-sized SHPB system. An improved Gorham’s inertia correction formula which could reflect the compressibility was derived in the light of a theoretical analysis on the regulation of the inertia effect. The improved formula was analyzed and validated by calculating the inertia stress based on the actual dynamic loading process of several concrete material tests. The results show that the improved formula is more comprehensive and reasonable for the consideration of the inertia effect.
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Received: 05 July 2012
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2013, Vol. 34 
