PSI - Issue 40

Nina A. Bogdanova et al. / Procedia Structural Integrity 40 (2022) 70–74

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Nina A. Bogdanova at al. / StructuralIntegrity Procedia 00 (2022) 000 – 000

Fig. 1. Cases of the Initial Packing of the Compact Elements and Third Order Polynomial of Stress-Strain Relations: (a) Loose Packing; (b) Cubic Packing; (c) Hexagonal Packing; (d) Cubic Packing with 20% of Elastic Elements; (e) Cubic Packing with 50% of Elastic Elements.

Changes in the stress values during the compaction process with the strain increment of 10% are shown in Table 2.

Table 2. Stress-Strain Relation for Different Cases of the Initial Packing of the System Deformed. Stress ( Ϭ 0,5 / Ϭ 3 ) [MPa] Strain [%] 10 20 30 40

a b c d e

0.03/0.04 0.27/0.31 0.25/0.32 0.21/0.29 0.26/0.22

0.12/0.27 0.39/0.47 0.36/0.43 0.36/0.37 0.38/0.39

0.35/0.45 0.43/0.52 0.53/0.63 0.51/0.52 0.42/0.51

0.42/0.58 0.58/0.69 0.72/0.81 0.64/0.67

Layout of Elements in the Mold

0.66/0.73 Note: Ϭ 0,5 / Ϭ 3 are the stresses obtained at the ram velocities of 0.5 mm/s and 3 mm/s respectively.