PSI - Issue 77

6

Author name / Structural Integrity Procedia 00 (2026) 000–000

Pawel Madejski et al. / Procedia Structural Integrity 77 (2026) 323–330

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Figure 6. Temperature distribution during the tensile test (before damage) with the place of damage initiation (marked), and temperature distribution during the tensile test (after damage) with the place of damage (marked) after cooling down.

Figure 7. Maximum temperature close to the damaged region registered by FLIR software and stress as a function of time during tensile tests. The correlation between mechanical and thermal behavior in the cubic infill group is clearly demonstrated through both the property measurements and thermal imaging analyses. The cubic structure is characterized by a moderate ultimate tensile strength of 27.33 MPa and an elastic modulus of 2.09 GPa, which allows the material to sustain loading and distribute stress fairly uniformly up to the point of localized damage. This mechanical profile is complemented by its intermediate thermal conductivity of 0.495 W/m·K, as shown in Table 1, enabling the sample to dissipate heat efficiently during deformation, thereby avoiding excessive overall heating while still permitting localized temperature increases at critical stress points.