The influence of the edge effect under plane specimens tension on polymer composite strength characteristics

Keywords

edge effect, digital image correlation, polymer composite materials, ultimate strength, reinforcing fibers, symmetrical reinforcement.

Cite as

Hvozdiuk М. М., Maksymenko О. P., Kharchenko Ye. V., and Palukh V. М. The influence of the edge effect under plane specimens tension on polymer composite strength characteristics. Physicochemical Mechanics of Materials. 2025. 61(4), 067-072.

https://doi.org/10.15407/pcmm2025.04.067

Abstract

The influence of the width of the edge effect zone in a plane sample of a polymer composite on the results of determining the tensile strength of the material is analyzed. A method for engineering assessment and determining the size of this zone by a non-contact optical-digital method, based on digital image correlation, is proposed. Experimental studies of the ELUR–008P/BN layered composite, symmetrically reinforced with high-modulus carbon fibers with a reinforcement arrangement scheme [(±45°)₁₂], were conducted. The experimental results obtained using modified correlation algorithms for processing digital images were compared with the data determined by the standard experimental and computational method.

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