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On the Elastic Stress Transfer and Longitudinal Modulus of Unidirectional Multi-short-fiber Composites by Shao-Yun Fu; Chee-Yoon Yue; Xiao Hu; Yiu-Wing Mai is a Engineering article available to read on EtoBox.

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An analysis is presented on the elastic stress transfer and longitudinal modulus of unidirectional multi-short-®ber composites. The analysis involves a three-cylinder model consisting of ®ber, matrix and composite medium. The ®ber axial stress and the interface shear stress are derived as functions of the ®ber axial position. The eects of ®ber-aspect ratio, ®ber-volume fraction, ®berto-matrix modulus ratio and inter-®ber separation (or ®ber end gap) on stress transfer are studied in detail. The in ̄uence of neighbouring ®bers on stress transfer is considered in a global manner by including the eect of the composite medium. The sig-ni®cance of the in ̄uence is clearly shown by comparing the stress transfer in multi-short-®ber composites with that in single-short-®ber composites. The composite modulus can be expressed by a modi®ed rule of mixtures equation by introducing a ®ber-length factor. Then, the eects of ®ber-aspect ratio, ®ber-volume fraction, ®ber-to-matrix modulus ratio and inter-®ber separation (or ®ber end gap) on the ®ber-length factor are investigated. Some interesting ®ndings are obtained. Finally, the present theory is compared with several existing theories.

Who reads On the Elastic Stress Transfer and Longitudinal Modulus of Unidirectional Multi-short-fiber Composites?

Author

Shao-Yun Fu; Chee-Yoon Yue; Xiao Hu; Yiu-Wing Mai

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0266-3538)

Published

2000

Language

EN

Field

Engineering (Physical Sciences)