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Colorado Mason sand has received increasing attention for use as a model granular material for the investigation of the soil response under a blast. The grain-level mechanical properties of Colorado Mason sand, which are important input for modeling and simulation of such granular material, are measured by nanoindentation. The as-received assorted sand is sorted into six grain sizes: 0.15 mm, 0.21 mm,...
Damage models are widely used to describe the ductile damage and fracture of metals. This paper proposes a new approach to determine the damage parameters of the Gurson-Tveergard-Needleman model, which uses a load–displacement curve coupled with finite element method. The load–displacement curve was obtained from a tensile test of a smooth tensile specimen and contained information about the damage...
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