NEW MODEL TO PREDICT STATIC STRENGTH OF TAPERED LAMINATES

Tapered laminates have wide applications in engineering structures. However, the problem of predicting static strength accurately has still not been satisfactorily resolved. Many models are available but all have limitations. In this paper, a new model called the variable fracture energy model is proposed. This model is established based on a comprehensive experimental and analytical study on constant thickness specimens with the central plies cut across the complete width. Many experimental results on tapered specimens indicate that this model can be used to predict the static strength of tapered laminates satisfactorily.