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This paper presents an experimental and numerical study of the failure phenomenon of compressed
composite top-hat (CFRP) columns with three different lay-up arrangements of the composite. The
research was conducted both experimentally on physical structures and numerically based on advanced
numerical models (based on the finite element method – ABAQUS® program). The research was
conducted especially in the range of failure of thin-walled structures, with capturing the phenomena
directly accompanying the loss of load-carrying capacity: damage initiation and evolution, as well as
delamination. As part of the experimental study, the course of a time-shortening (universal testing
machine) and acoustic emission signals were recorded (AMSY-5), allowing for an in-depth evaluation
of the failure. Numerical simulations were conducted using independent failure models - progressive
failure analysis (PFA) and cohesive zone model (CZM). This approach allowed for a comprehensive
assessment of the failure phenomena, both in the context of the analysis of phenomena contributing
to the loss of load-carrying capacity of the structure, as well as the delamination phenomenon. The
main objective and novelty of this paper, was to compare the test results for three different composite
lay-ups, in the context of failure studies.
