Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5206520 | Polymer Testing | 2013 | 7 Pages |
Interfacial micromechanical performance of carbon fiber (CF) reinforced polyphenylene sulfide (PPS) composite was studied by the microbond test. A novel homemade apparatus which is operated simply was employed and a different microsample preparation method was introduced. Comparative tests at various loading speeds were made to investigate the influence of testing rate on the interfacial shear strength of CF/PPS micro-composite. It was found that the interfacial shear strength increased with increasing fiber embedded length at speeds below 0.02Â mm/s and above 0.04Â mm/s, but it was constant between 0.02 and 0.04Â mm/s. It is recommended to perform the microbond test in the test rate range of 0.02-0.04Â mm/s, where the interfacial shear strength does not change with the embedded length and no significant deviations are observed, thus could better reflect the true interface strength of the composite.