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However, simple models of continuum damage mechanics based on these parameters failed to predict the composite flow stress in the presence of interface decohesion.
Under compressive loading, a steady-state regime is attained in which the composite flow stress is proportional to the matrix flow stress at the same level of strain.
Comparison with data shows that, whereas calculations capture satisfactorily the evolution of the average composite flow stress as a function of notch radius at small strains, the notched samples damage faster and fail at strains lower than predicted.
Systematic predictions are made of the composite flow stress as determined by inclusion volume fraction, the applied strain rate and the strain hardening exponent and strain rate sensitivity of the matrix.
It was found that the presence of clustering greatly increased (by a factor between 3 and 6) the fraction of broken spheres, leading to a major reduction of the composite flow stress and ductility.
The best approximations to the reference numerical results were provided by the incremental and the second-order secant methods, while the classical or first-order secant approach overestimated the composite flow stress, particularly when the composite was deformed in the longitudinal direction.
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To ensure the data reliability, a comparison of polarization curves was made between the composite flow-field plate and the conventional flow-field plate.
The inert gas or its composite flows sweep the carbon species to deposit them in a collector at the downstream of the tube.
We have identified critical issues for the concept, some of which include the first wall design, the assessment of MHD effects with the SiC-composite flow coolant insert, and the extraction and control of the bred tritium from the Pb 17Li breeder.
The horizontal portion of the pressure derivative curve from 1000 to 40,000 h indicates the ending of transition period and starting of the composite system flow.
As a result, the effect of the condensate blockage on early times is the same as in the case of the composite homogenous flow behavior.
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