TY - GEN
T1 - Permeability measurement of orthotropic fibers under an acoustic force field
AU - Sharma, Sanjay
AU - Siginer, Dennis
PY - 2009
Y1 - 2009
N2 - Using the validated acoustic method of determining physical properties of porous materials, acoustical properties of the orthotropic medium is used to predict longitudinal and transverse permeability. Measurement of samples in the impedance tube is conducted using ASTM E 1050 for a frequency range of 50 Hz to 6.4 KHz. The acoustical method is shown to compute longitudinal and transverse permeability for various porosity levels. The method describes permeability prediction for carbon, glass and hybrid lay ups. Longitudinal permeability calculated from the absorption coefficient of sized and unsized fibers is found to be the same in contrast to the flow methods.
AB - Using the validated acoustic method of determining physical properties of porous materials, acoustical properties of the orthotropic medium is used to predict longitudinal and transverse permeability. Measurement of samples in the impedance tube is conducted using ASTM E 1050 for a frequency range of 50 Hz to 6.4 KHz. The acoustical method is shown to compute longitudinal and transverse permeability for various porosity levels. The method describes permeability prediction for carbon, glass and hybrid lay ups. Longitudinal permeability calculated from the absorption coefficient of sized and unsized fibers is found to be the same in contrast to the flow methods.
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U2 - 10.1115/FEDSM2009-78567
DO - 10.1115/FEDSM2009-78567
M3 - Conference contribution
AN - SCOPUS:77952946652
SN - 9780791843727
T3 - Proceedings of the ASME Fluids Engineering Division Summer Conference 2009, FEDSM2009
SP - 1231
EP - 1233
BT - Proceedings of the ASME Fluids Engineering Division Summer Conference 2009, FEDSM2009
T2 - 2009 ASME Fluids Engineering Division Summer Conference, FEDSM2009
Y2 - 2 August 2009 through 6 August 2009
ER -