PMID- 35890660
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20220731
IS  - 2073-4360 (Electronic)
IS  - 2073-4360 (Linking)
VI  - 14
IP  - 14
DP  - 2022 Jul 16
TI  - Mechanical Strength of Triply Periodic Minimal Surface Lattices Subjected to 
      Three-Point Bending.
LID - 10.3390/polym14142885 [doi]
LID - 2885
AB  - Sandwich panel structures (SPSs) with lattice cores can considerably lower 
      material consumption while simultaneously maintaining adequate mechanical 
      properties. Compared with extruded lattice types, triply periodic minimal surface 
      (TPMS) lattices have light weight but better controllable mechanical properties. 
      In this study, the different types of TPMS lattices inside an SPS were analysed 
      comprehensively. Each SPS comprised two face sheets and a core filled with 20x5x1 
      TPMS lattices. The types of TPMS lattices considered included the Schwarz 
      primitive (SP), Scherk's surface type 2 (S2), Schoen I-graph-wrapped package 
      (I-WP), and Schoen face-centred cubic rhombic dodecahedron (F-RD). The finite 
      element method was applied to determine the mechanical performance of different 
      TPMS lattices at different relative densities inside the SPS under a three-point 
      bending test, and the results were compared with the values calculated from 
      analytical equations. The results showed a difference of less than 21% between 
      the analytical and numerical results for the deformation. SP had the smallest 
      deformation among the TPMS lattices, and F-RD can withstand the highest allowable 
      load. Different failure modes were proposed to predict potential failure 
      mechanisms. The results indicated that the mechanical performances of the TPMS 
      lattices were mainly influenced by the lattice geometry and relative density.
FAU - Lin, Zo-Han
AU  - Lin ZH
AD  - Department of Mold and Die Engineering, National Kaohsiung University of Science 
      and Technology, No. 415 Jiangong Rd., Kaohsiung 807618, Taiwan.
FAU - Pan, Jyun-Hong
AU  - Pan JH
AUID- ORCID: 0000-0003-1117-0542
AD  - Department of Mold and Die Engineering, National Kaohsiung University of Science 
      and Technology, No. 415 Jiangong Rd., Kaohsiung 807618, Taiwan.
FAU - Li, Hung-Yuan
AU  - Li HY
AUID- ORCID: 0000-0002-6850-8439
AD  - Department of Mold and Die Engineering, National Kaohsiung University of Science 
      and Technology, No. 415 Jiangong Rd., Kaohsiung 807618, Taiwan.
LA  - eng
PT  - Journal Article
DEP - 20220716
PL  - Switzerland
TA  - Polymers (Basel)
JT  - Polymers
JID - 101545357
PMC - PMC9318031
OTO - NOTNLM
OT  - failure mode
OT  - finite element analysis
OT  - relative density
OT  - sandwich panel structure
OT  - three-point bending test
OT  - triply periodic minimal surface
COIS- The authors declare no conflict of interest.
EDAT- 2022/07/28 06:00
MHDA- 2022/07/28 06:01
PMCR- 2022/07/16
CRDT- 2022/07/27 01:40
PHST- 2022/06/15 00:00 [received]
PHST- 2022/07/06 00:00 [revised]
PHST- 2022/07/14 00:00 [accepted]
PHST- 2022/07/27 01:40 [entrez]
PHST- 2022/07/28 06:00 [pubmed]
PHST- 2022/07/28 06:01 [medline]
PHST- 2022/07/16 00:00 [pmc-release]
AID - polym14142885 [pii]
AID - polymers-14-02885 [pii]
AID - 10.3390/polym14142885 [doi]
PST - epublish
SO  - Polymers (Basel). 2022 Jul 16;14(14):2885. doi: 10.3390/polym14142885.