期刊
JOURNAL OF SANDWICH STRUCTURES & MATERIALS
卷 21, 期 2, 页码 784-805出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/1099636217699587
关键词
Wood-based sandwich panels; plywood; thermoplastic composites; corrugated core; cellular wood core; textile composites
类别
资金
- European commission FP7 program MAPICC 3D (One-shot Manufacturing on large scale of 3D upgraded panels and stiffeners for lightweight thermoplastic textile composite structures) [263159-1]
- Latvia state research program under grant agreement Innovative and multifunctional composite materials for sustainable buildings (IMATEH)
A series of experimental tests have been carried out on three types of novel sandwich panels mainly designed for application in lightweight mobile housing. Two types of the panels are manufactured entirely from wood-based materials while the third one presents a combination of plywood for surfaces and corrugated thermoplastic composite as a core part. All sandwich panels are designed to allow rapid one-shot manufacturing. Mechanical performance has been evaluated in four-point bending comparing the data to the reference plywood board. Additionally, finite element simulations were performed to evaluate global behavior, stress distribution and provide the basis for a reliable design tool. Obtained results show sufficient mechanical characteristics suitable for floor and wall units. Compared to a solid plywood board, sandwich alternative can reach up to 42% higher specific stiffness, at the same time maintaining sufficient strength characteristics.
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