A sophisticated periodic micro-model for closed-cell foam based on centroidal constraint and capacity constraint

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

  • Yue Ding - , Dalian University of Technology, University of Science and Technology of China (USTC), CAS - Ningbo Institute of Material Technology and Engineering (Autor:in)
  • Xin Zhou - , CAS - Ningbo Institute of Material Technology and Engineering (Autor:in)
  • Jun Wang - , CAS - Ningbo Institute of Material Technology and Engineering, University of Chinese Academy of Sciences (Autor:in)
  • Yajie Feng - , CAS - Ningbo Institute of Material Technology and Engineering (Autor:in)
  • Jianbo Tang - , CAS - Ningbo Institute of Material Technology and Engineering, Shandong University (Autor:in)
  • Nianwei Shang - , Technische Universität Dresden (Autor:in)
  • Shiqing Xin - , Shandong University (Autor:in)
  • Xigao Jian - , Dalian University of Technology (Autor:in)
  • Maik Gude - , Professur für Leichtbaudesign und Strukturbewertung (Autor:in)
  • Jian Xu - , Dalian University of Technology, CAS - Ningbo Institute of Material Technology and Engineering (Autor:in)

Abstract

A deeper understanding of the uniaxial compression damage behavior and its microscopic mechanisms in closed-cell Polyurethane foam (PUF) at higher strains would be the first step to comprehend its energy absorption behavior in application. A physical-based micro-structure of the PUF model, therefore, is a crucial precondition in the prediction of the material property. A highly efficient physical-based model with adapted periodic boundary conditions (PBCs) is developed to simulate the mechanical behavior of the rigid closed-cell foam using 100 cells, much less than that mentioned in the literature (800 cells). The microstructure characteristics of PUF have been obtained by scanning electron microscopy (SEM), including the cell size distribution, the wall thickness, the cell aspect ratio, etc. Using these parameters, a periodic representative volume elements (RVEs) model based on the Laguerre tessellation with centroidal constraint and capacity constraint (LTCCC) has been proposed. The centroidal constraint and capacity constraint on the LTCCC has a sound physical meaning that the volume distribution of the cells in the RVEs model obtained by the iterations of the weights of the seed points can be precisely matched to that measured using the SEM. Meanwhile, the features of the RVEs model, including the number of the faces per cell and the number of the edges per face, also match those of the real foam. The anisotropic compressive behavior of the PUF is predicted and well validated using the experimental results. The quasi-static crushing progress of the cells as well as the struts is detailed discussed using the proposed model to reproduce the layer-wise collapse phenomena and reveal the reasons that cause the different crushing behavior in axial direction and perpendicular to the axis direction.

Details

OriginalspracheEnglisch
Aufsatznummer116175
Seitenumfang12
FachzeitschriftComposite Structures
Jahrgang303
Frühes Online-Datum27 Aug. 2022
PublikationsstatusVeröffentlicht - 1 Jan. 2023
Peer-Review-StatusJa

Externe IDs

Mendeley 57d86d5a-d218-33bc-8885-5bd6e817ae64
unpaywall 10.1016/j.compstruct.2022.116175
WOS 000868424100003
ORCID /0000-0003-1370-064X/work/142243784