TY - GEN
T1 - A micromechanical model for wave propagation in plain-weave textile composites
AU - Abdelrahman, Wael G.
PY - 2007
Y1 - 2007
N2 - In this paper we adapt and extend the results of a recently developed continuum mixture model to study wave propagation interaction with plain weave textile composites. The original model, which was first used to study wave propagation in bilaminated composites, is based on approximate distributions for some of the transverse stress and displacement components. This results in two coupled partial differential equations describing the micromechanical behavior of the layered composite. Next, we idealize the complex weave unit cell into segments of bi-laminated composite, which geometrically model the undulation. Formal solutions for the two coupled equations are then obtained in each of the segments. Finally, the transfer matrix method is used to relate the solutions at one end of the idealized unit cell to the other, to obtain the unit cell global transfer matrix and to derive the dispersion equation of the system. The procedure is applied to a graphite-epoxy plain-weave composite and several characteristics are observed. Very good convergence is achieved using only a small number of segments.
AB - In this paper we adapt and extend the results of a recently developed continuum mixture model to study wave propagation interaction with plain weave textile composites. The original model, which was first used to study wave propagation in bilaminated composites, is based on approximate distributions for some of the transverse stress and displacement components. This results in two coupled partial differential equations describing the micromechanical behavior of the layered composite. Next, we idealize the complex weave unit cell into segments of bi-laminated composite, which geometrically model the undulation. Formal solutions for the two coupled equations are then obtained in each of the segments. Finally, the transfer matrix method is used to relate the solutions at one end of the idealized unit cell to the other, to obtain the unit cell global transfer matrix and to derive the dispersion equation of the system. The procedure is applied to a graphite-epoxy plain-weave composite and several characteristics are observed. Very good convergence is achieved using only a small number of segments.
UR - http://www.scopus.com/inward/record.url?scp=35648931980&partnerID=8YFLogxK
U2 - 10.2514/6.2007-2946
DO - 10.2514/6.2007-2946
M3 - Conference contribution
AN - SCOPUS:35648931980
SN - 1563478935
SN - 9781563478932
T3 - Collection of Technical Papers - 2007 AIAA InfoTech at Aerospace Conference
SP - 2356
EP - 2363
BT - Collection of Technical Papers - 2007 AIAA InfoTech at Aerospace Conference
PB - American Institute of Aeronautics and Astronautics Inc.
ER -