Paper number 815
|THEORETICAL STUDIES ON STEADY-STATE FIBRE PULL-OUT|
X. Zhang, H.-Y. Liu and Y.-W. Mai
Centre for Advanced Materials Technology, Department of Mechanical and Mechatronic Engineering, University of Sydney, NSW 2006, Australia
|Summary||An improved theoretical model has been developed to study the mechanics of a steady-state fibre pull-out test. With only a few assumptions, the solutions of the stress field satisfy all equilibrium equations, boundary conditions and continuity at the fibre/matrix. As distinct from previous work, the effect of pull-out rate is taken into account in the interfacial friction and debonding. Numerical results of the stress distribution in both bonded and debonded regions are given for a typical carbon/epoxy composite. Applied stress (load)-displacement curves of a fibre pull-out process are obtained by computer simulation.
||Keywords|| steady-state fibre pull-out, rate-dependent friction, stress field, interface debonding, frictional sliding, local-strain criterion.
Theme : Interface and Interphase ; Mechanical Properties
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