Affiliation of Author(s):能源与动力学院

Journal:INTERNATIONAL JOURNAL OF FATIGUE

Key Words:CFRP composites Fatigue model Size effect Constant fatigue life diagram

Abstract:Fatigue tests for unidirectional (UD) CFRP composite specimens of various sizes are conducted under different stress ratios. The results show that the specimen size has considerable influence on the transverse tension-tension fatigue performance of UD laminates. The underlying fatigue mechanisms are also investigated through SEM observations. Moreover, a fatigue life prediction method considering size effects is presented, and a good correlation is observed between the prediction and the test data. Finally, to allow for an evaluation of the effects of mean stress, constant fatigue life diagrams for 0 degrees, 10 degrees, and 90 degrees UD composites are established based on four-segment anisomorphic model.

ISSN No.:0142-1123

Translation or Not:no

Date of Publication:2019-03-01

Co-author:Liu, Haolong,Ojha, Avinesh,Li, Ziang,Engler-Pinto, Carlos C.,,Engler-Pinto, Carlos C., Jr.,Su, Xuming,Sun, Qingping,Kang, Hongtae,cht

Correspondence Author:Liu, Haolong,wwd