|
CSME 2023/03
Volume 44 No.1
:
67-76
|
|
De-asymmetry Method for Distribution Function of Fiber Orientation in Injection Molded Composites
Shanjie Zhia, Hejian Liua, Xizhou Yangb and Xintian Liub
aApplied Technology College of Soochow University
bShanghai University of Engineering Science, Shanghai 201620, China
|
Abstract:
Fiber orientation is a key factor in determining the mechanical properties of injection molded composites. Therefore, accurate description of fiber orientation plays an important role in the performance evaluation of injection molded composites. The relationship between the effective thickness in the thickness direction and the probability density of the fiber orientation tensor is built up. Based on it, a smooth segmented linear function of fiber orientation is proposed to obtain the cumulative distribution function of fiber orientation tensor. Considering the asymmetry and non-monotonicity of the fiber orientation distribution, a de-asymmetry method is proposed. Compared with the experimental results in the literature, the cumulative distribution function has a good fit, and the experimental results correlate well with the elastic modulus obtained by the de-asymmetry method. It could provide a reference basis for subsequent studies based on the thickness distribution of the fiber orientation tensor.
|
|
Keywords: fiber orientation distribution, mechanical properties, Weibull distribution, injection molded composites.
|
Download PDF
|
|
*Corresponding author; e-mail:
|
©
2023
CSME , ISSN 0257-9731
|