年間 4 号発行
ISSN 印刷: 2572-4258
ISSN オンライン: 2572-4266
Indexed in
TRANSVERSE ELASTIC MODULUS IN UNIDIRECTIONAL FIBER REINFORCED COMPOSITES: MODELING WITH VARYING INTERPHASE USING NUMERICAL INTEGRATION
要約
The loading of composite in the perpendicular direction to that of the principal axis of fiber is a case of transverse loading where the adhesion between fiber-matrix plays a crucial role. A most influential parameter for composite behavior in this case is the contemplation of interphase of the two main phases. The present work contains mathematical modeling for the interphase elastic modulus using various numerical integration techniques, e.g., trapezoidal, Simpson's 1/3, Simpson's 3/8, and Romberg's integration. The transverse elastic modulus model for unidirectional fiber reinforced composites is proposed with due consideration of adhesion phenomenon and interphase. Based on these techniques a simulation program is developed. The developed model for the transverse elastic modulus is also validated with available experimental data and the power-law variation model is found to be in good agreement with experimental results. Thus, the developed model is very helpful in considering the interphase effect as it is always advisable to take care of interphase in the design steps because the characterization of interphase is very difficult, time-consuming, and costlier procedure.