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Dynamic Behavior of Laminated and Sandwich Composite Materials

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced Composites".

Deadline for manuscript submissions: 20 October 2025 | Viewed by 463

Special Issue Editor


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Guest Editor
Department of Strength of Materials, National University for Science and Technology POLITEHNICA Bucharest, Splaiul Independeţei 313, 060042 Bucharest, Romania
Interests: fracture mechanics; fatigue; impact; nanocomposites and composites; foams; delamination and failure; metamaterials

Special Issue Information

Dear Colleagues,

Evaluating the behavior of composites under dynamic loading conditions (impact, blast, and vibration) has reached a high level of maturity, facilitating the design of nanocomposites and composites with multifunctional properties by using experimental and numerical simulation methodologies. Laminated and sandwich composite fabrication requires further research on topics such as advanced and automated manufacturing processes and the novel design of metamaterials. Our objective is to bring together various techniques developed for the fabrication of composites via additive manufacturing, with the aim of presenting new perspectives on improved technologies for controlling the microstructure of composites. Thus, composites can be designed with enhanced overall material toughness and without compromised strength and stiffness.

In this Special Issue, we aim to acquire a better understanding of the rate- and temperature-dependent dynamic mechanical properties of composites and their anisotropic properties by assessing the relationships between microscopic and macroscopic parameters specific to damage mechanisms. We also encourage contributions focusing on multi-objective optimization for the dynamic loading response of periodic composite materials and evaluating the performance of direct search algorithms such as greedy algorithms, simulated annealing, genetic algorithms, and particle swarm optimization. Thus, this Special Issue will offer practical guidelines for selecting suitable optimization methods based on problem size and the composites’ characteristics at multiple scales.

Prof. Dr. Dan Mihai Constantinescu
Guest Editor

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Keywords

  • composites’ dynamic mechanical behavior
  • experimental techniques and numerical modeling and simulation
  • nanocomposites
  • fiber-reinforced, polymer, and metallic composites
  • smart, sustainable, multifunctional, and bioinspired composites
  • advanced metamaterials and structures
  • laminated and sandwich composite failure mechanisms
  • optimization and direct search algorithms

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Published Papers (1 paper)

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Research

23 pages, 16208 KiB  
Article
Low-Velocity Impact Response of Novel TPMS and Stochastic Lattice Cores of Sandwich Structures
by Alexandru Vasile, Dan Mihai Constantinescu, Iulian Constantin Coropețchi, Ștefan Sorohan and Andrei Ioan Indreș
Materials 2025, 18(12), 2889; https://doi.org/10.3390/ma18122889 - 18 Jun 2025
Viewed by 245
Abstract
This study explores the mechanical performance of triply periodic minimal surface (TPMS) and stochastic lattice structures subjected to low-velocity impact. Two structurally promising geometries—one TPMS-based and one stochastic—were tested and compared with the well-established gyroid. Specimens were fabricated using stereolithography (SLA) and subjected [...] Read more.
This study explores the mechanical performance of triply periodic minimal surface (TPMS) and stochastic lattice structures subjected to low-velocity impact. Two structurally promising geometries—one TPMS-based and one stochastic—were tested and compared with the well-established gyroid. Specimens were fabricated using stereolithography (SLA) and subjected to impact energies of 30 J and 40 J to assess the structural response and energy absorption capabilities. Experimental results show that the proposed TPMS structure exhibits higher impact forces compared with the gyroid, which are associated with significant impactor displacement and deep indentation. These samples demonstrated extensive damage, with cracking propagating through the entire core at higher energies, highlighting their susceptibility to structural failure despite their high initial strength. On the contrary, the stochastic structures allowed localized deformation in the impacted region, thus successfully avoiding catastrophic failure. The impact force efficiency was higher for both gyroid and stochastic geometries, with values ranging between 0.6 and 0.7, indicating effective energy absorption with reduced internal stress gradients. Furthermore, the evaluation of damping performance showed that most structures displayed high damping, as minimal energy was transferred back to the impactor. This work highlights the feasibility and functional versatility of TPMS and stochastic geometries for use in impact mitigation, vibration control, and related engineering applications. Full article
(This article belongs to the Special Issue Dynamic Behavior of Laminated and Sandwich Composite Materials)
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