Direct measurement and verification of cohesive zone model parameters for basalt/PP rods using the transverse tensile test and virtual double cantilever beam test

To further our understanding of failure in thermoplastic‐based composite rods, the mode I‐governed cohesive zone model parameter of a basalt fiber reinforced polypropylene composite rod is evaluated. The relations between stress and strain, the maximum normal traction and final separation displaceme...

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Bibliographic Details
Published in:Polymer composites 2023-02, Vol.44 (2), p.954-962
Main Authors: Tobata, Yuta, Naito, Kimiyoshi, Tanks, Jonathon
Format: Article
Language:English
Subjects:
Basalt
Cantilever beams
cohesion
Dimensional analysis
Fiber composites
Fiber reinforced polymers
finite element analysis
Finite element method
Parameters
Rods
Tensile tests
tension
toughness
Traction
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Summary:To further our understanding of failure in thermoplastic‐based composite rods, the mode I‐governed cohesive zone model parameter of a basalt fiber reinforced polypropylene composite rod is evaluated. The relations between stress and strain, the maximum normal traction and final separation displacement are examined using a transverse tensile test method. The measured traction is verified by three‐dimensional finite element analysis of rod‐shaped double cantilever beam specimens. The numerical results show the close relation between the crack length and cube root of compliance, and yields a representative value of the mode I‐governed critical fracture energy.
ISSN:0272-8397
1548-0569
DOI:10.1002/pc.27145