Permeability of natural fiber reinforcement for liquid composite molding processes

Modeling of resin flow in natural fiber reinforcement for liquid composite molding processes

“…Subsequently, the size of the flow path decreases and the flow characteristics may also be altered. It is well known that this fiber swell phenomenon leads to a change of reinforcement permeability during the mold filling process [5][6][7][8]. This mechanism is illustrated in Fig.…”

“…The fiber swell behavior and the permeability of this fabric had been analyzed in the previous work of which data and model were used again for the current work [8]. All the other information on this fabric can also be found at the same reference [8].…”

“…The fiber swell behavior and the permeability of this fabric had been analyzed in the previous work of which data and model were used again for the current work [8]. All the other information on this fabric can also be found at the same reference [8]. The change of fiber diameter can be represented in terms of fiber swell ratio that is the ratio of wet fiber diameter to dry fiber diameter [8].…”

“…All the other information on this fabric can also be found at the same reference [8]. The change of fiber diameter can be represented in terms of fiber swell ratio that is the ratio of wet fiber diameter to dry fiber diameter [8].…”

“…We adopt a new experimental method using a centrifuge to measure the liquid mass absorbed into the natural fiber. Concerning the fiber swell and the corresponding permeability change, we use the model and data obtained in our previous work [8]. Then, we obtain the data for flow front advancement with time in mold filling experiments.…”