Failure Processes of Bundles of Plastic Fibers

A tétel rövid nézete
dc.contributor.advisorKun, Ferenc
dc.contributor.authorDo, Huyen Anh
dc.contributor.departmentDE--Természettudományi és Technológiai Kar--Fizikai Intézet
dc.date.accessioned2025-06-13T09:29:46Z
dc.date.available2025-06-13T09:29:46Z
dc.date.created2025-05-02
dc.description.abstractThis study explores the failure processes of bundles of plastic fibers within plastic fiber-reinforced composite materials (PFRCs), based on fiber bundle models (FBMs) that incorporate elastic-plastic behavior and statistical variations in yielding and breaking thresholds. The investigation includes analytical derivation and numerical simulations to model the macroscopic and microscopic failure mechanisms of plastic fiber bundles. Results indicate a transition from gradual to abrupt failure as the plastic coefficient decreases, with catastrophic failure occurring when the weakest fiber initiates collapse. Failure proceeds through avalanches, characterized by power-law size distributions, whose statistical properties depend on the plastic coefficient and stress field heterogeneity. Finite-size scaling analysis reveals critical exponents and identifies the transition as analogous to continuous phase transitions. The study provides significant insights into the fracture dynamics of PFRCs, offering a basis for predicting material behavior under mechanical loads and improving the reliability of composite materials in engineering applications.
dc.description.coursePhysics
dc.description.degreeBSc/BA
dc.format.extent29
dc.identifier.urihttps://hdl.handle.net/2437/391705
dc.language.isoen
dc.rights.infoHozzáférhető a 2022 decemberi felsőoktatási törvénymódosítás értelmében.
dc.subjectplastic fiber reinforced composites (PFRCs)
dc.subjectfiber bundle model (FBM)
dc.subjectelastic-plastic behavior
dc.subjectfailure avalanches
dc.subjectpower law distribution
dc.subjectuniform distribution
dc.subjectWeibull distribution
dc.subjectacoustic emissions
dc.subject.dspacePhysics::Theoretical Physics
dc.titleFailure Processes of Bundles of Plastic Fibers
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