Work

Ply-ply friction for UD C/PAEK tapes in melt under varying sliding rates

Year: 2026

Type: article

Abstract: High fidelity composite forming simulations require accurate characterization and modeling of ply-ply friction. Most of the efforts so far considered constant sliding rates, yet these rates will certainly vary during actual forming processes. In this paper, we follow up on our previous research on ply-ply friction with novel varying-rate experiments using a newly developed friction tester. These experiments demonstrated that the peak friction depends on the sliding history for medium to high sliding rates, while this peak friction remains unaffected in the case of initial sliding with low rates. Further, a low-rate ramp mitigates a peak friction. These observations substantiate the concept of wall slip in the fiber–matrix interphase as the key underlying mechanism for the transient friction response, in line with our earlier work. Moreover, we discussed an extension to our earlier transient shear flow model that correctly describes the observed varying-rate friction, contributing to implementation in forming simulations.

Source: Composites Part A Applied Science and Manufacturing

DOI: 10.1016/j.compositesa.2026.109866

Authors: E.R. Pierik, S. Benou, W.J.B. Grouve, S. Wijskamp, R. Akkerman

Institutions: Thermoplastic Composites Research Center, University of Twente

Language: English

Topic: Mechanical Behavior of Composites

Subfield: Mechanics of Materials

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,480

Funder: Nederlandse Organisatie voor Wetenschappelijk Onderzoek