PMID- 31877724
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20200928
IS  - 2073-4360 (Electronic)
IS  - 2073-4360 (Linking)
VI  - 12
IP  - 1
DP  - 2019 Dec 21
TI  - Structural Performance of HDPE and WPC Lumber Components Used in Aquacultural 
      Geodesic Spherical Cages.
LID - 10.3390/polym12010026 [doi]
LID - 26
AB  - Based on previous research, a novel wood-plastic composite (WPC) lumber has shown 
      potential to replace high-density polyethylene (HDPE) lumber in the construction 
      of aquacultural geodesic spherical cage structures. Six HDPE and six WPC 
      assemblies, which are representative of typical full-size cage dimensions, were 
      fabricated by bolting pairs of triangular panel components made with connected 
      struts. Half of the panel assemblies had a plastic-coated steel wire mesh to 
      simulate the actual restraint in field applications of the cages. The objective 
      of the research was to characterize the structural performance of the panel 
      assemblies under compressive loading. To determine the critical buckling load for 
      the panel assemblies made from WPC and HDPE struts with and without wire mesh, 
      Southwell's method was implemented. A two-dimensional (2D) linear finite element 
      analysis model was developed to determine axial forces in the struts of the panel 
      assembly for the applied load and boundary conditions. This model was used to 
      determine strut compressive forces corresponding to the Southwell's method 
      buckling load and the experimental failure load. It was found that the wire mesh 
      increased the load capacity of both HDPE and WPC panel assemblies by a factor of 
      two. The typical failure mode of the panels made from HDPE lumber struts, with 
      and without wire mesh, was buckling of the struts, whereas the failure mode of 
      the WPC panels, with and without wire mesh, was fracture at the notched section 
      corresponding to the location of the bolts. The load capacity of the panel 
      assemblies made from WPC lumber struts was three times and 2.5 times higher than 
      the load capacity of the panel assemblies made from HDPE lumber struts with and 
      without wire mesh, respectively.
FAU - Alrubaie, Murtada Abass A
AU  - Alrubaie MAA
AUID- ORCID: 0000-0002-6989-348X
AD  - Department of Civil and Environmental Engineering, Advanced Structures and 
      Composites Center, University of Maine, Orono, ME 04469, USA.
FAU - Gardner, Douglas J
AU  - Gardner DJ
AD  - School of Forest Resources, Advanced Structures and Composites Center, University 
      of Maine, Orono, ME 04469, USA.
FAU - Lopez-Anido, Roberto A
AU  - Lopez-Anido RA
AD  - Department of Civil and Environmental Engineering, Advanced Structures and 
      Composites Center, University of Maine, Orono, ME 04469, USA.
LA  - eng
PT  - Journal Article
DEP - 20191221
PL  - Switzerland
TA  - Polymers (Basel)
JT  - Polymers
JID - 101545357
PMC - PMC7023563
OTO - NOTNLM
OT  - Abaqus
OT  - HDPE
OT  - Southwell's method
OT  - WPC
OT  - aquacultural
OT  - buckling
OT  - composite
OT  - finite element analysis
OT  - plastic
OT  - structural analysis
OT  - wood
COIS- The authors declare no conflict of interest.
EDAT- 2019/12/28 06:00
MHDA- 2019/12/28 06:01
PMCR- 2019/12/21
CRDT- 2019/12/28 06:00
PHST- 2019/11/27 00:00 [received]
PHST- 2019/12/18 00:00 [revised]
PHST- 2019/12/19 00:00 [accepted]
PHST- 2019/12/28 06:00 [entrez]
PHST- 2019/12/28 06:00 [pubmed]
PHST- 2019/12/28 06:01 [medline]
PHST- 2019/12/21 00:00 [pmc-release]
AID - polym12010026 [pii]
AID - polymers-12-00026 [pii]
AID - 10.3390/polym12010026 [doi]
PST - epublish
SO  - Polymers (Basel). 2019 Dec 21;12(1):26. doi: 10.3390/polym12010026.