Dynamic mechanical response of ceramic plate lattice and its interpenetrating phase composites: A comparative study based on polyurea and aluminum alloy soft phases

TY - JOUR

T1 - Dynamic mechanical response of ceramic plate lattice and its interpenetrating phase composites

T2 - A comparative study based on polyurea and aluminum alloy soft phases

AU - Gao, Xiong

AU - Zhang, Bin

AU - Wang, Wenqing

AU - He, Rujie

N1 - Publisher Copyright: © 2026 Elsevier B.V.

PY - 2026/1/25

Y1 - 2026/1/25

N2 - Inspired by the interpenetrating phase composites (IPCs) found in natural biomaterials, this study utilizes vat photopolymerization technology to fabricate Al2O3 ceramic plate lattice structures (CPLSs) and constructs two bio-inspired IPCs by incorporating polyurea (a hyperelastic material) and aluminum alloy (a plastic material) as the soft phases, resulting in polyurea/Al2O3 plate lattice structures (P/CPLSs) and aluminum alloy/Al2O3 plate lattice structures (A/CPLSs). The mechanical responses of CPLSs, P/CPLSs, and A/CPLSs under dynamic impact loads were compared using a Split Hopkinson Pressure Bar experimental system. The results demonstrate that increasing the relative density effectively enhances the load-bearing capacity of CPLSs, although it does not prevent catastrophic failure. In contrast, both IPCs show significant improvements in load-bearing and energy absorption capacities. Specifically, due to the hyper elasticity provided by polyurea, P/CPLSs exhibit better structural integrity. On the other hand, A/CPLSs, benefiting from the superior plasticity and strain hardening characteristics of aluminum alloy, demonstrate unparalleled load-bearing and energy absorption abilities. This work makes a valuable contribution to the existing body of research on ceramic-based IPCs.

AB - Inspired by the interpenetrating phase composites (IPCs) found in natural biomaterials, this study utilizes vat photopolymerization technology to fabricate Al2O3 ceramic plate lattice structures (CPLSs) and constructs two bio-inspired IPCs by incorporating polyurea (a hyperelastic material) and aluminum alloy (a plastic material) as the soft phases, resulting in polyurea/Al2O3 plate lattice structures (P/CPLSs) and aluminum alloy/Al2O3 plate lattice structures (A/CPLSs). The mechanical responses of CPLSs, P/CPLSs, and A/CPLSs under dynamic impact loads were compared using a Split Hopkinson Pressure Bar experimental system. The results demonstrate that increasing the relative density effectively enhances the load-bearing capacity of CPLSs, although it does not prevent catastrophic failure. In contrast, both IPCs show significant improvements in load-bearing and energy absorption capacities. Specifically, due to the hyper elasticity provided by polyurea, P/CPLSs exhibit better structural integrity. On the other hand, A/CPLSs, benefiting from the superior plasticity and strain hardening characteristics of aluminum alloy, demonstrate unparalleled load-bearing and energy absorption abilities. This work makes a valuable contribution to the existing body of research on ceramic-based IPCs.

KW - Ceramic plate lattice

KW - Interpenetrating phase composites

KW - Mechanical property

KW - Vat photopolymerization

UR - https://www.scopus.com/pages/publications/105026666563

U2 - 10.1016/j.jallcom.2026.186033

DO - 10.1016/j.jallcom.2026.186033

M3 - Article

AN - SCOPUS:105026666563

SN - 0925-8388

VL - 1051

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

M1 - 186033

ER -