基于ANSYS的碳纤维复合材料传动轴失效分析

The Failure Analysis of Carbon Fiber Composite Material Transmission Shaft Based on ANSYS

为了研究铺层角度、厚度以及顺序对碳纤维复合材料失效模式的影响规律,本论文运用有限元软件ANSYS模拟复合材料在不同铺层方案下的失效模式。研究发现铺层角度和铺层顺序均对复合材料的失效具有较大的影响。在铺层角度为60°—70°之间出现应力最小值,其失效可能性比较低;在铺层顺序上,采用45°在复合材料底层比其他方案更减少其失效性。将运用此有限元方法能更有效,更直观的分析碳纤维复合材料的失效模式,并能给某型号风机传动轴铺层方案提供参考价值,从而提高传动轴的使用寿命。

In order to study the influence of the ply angle, thickness and order on the failure modes of CFRP, the failure modes of composite materials under different ply schemes are simulated by the finite element software ANSYS. It is found that the ply angle and the stacking sequence have great influence on the failure of the composite. When the ply angle is between 60 and 70 degrees, the minimum stress occurs, and the failure probability is low. In the stacking sequence, 45 degrees is adopted to reduce the failure of composite material layer better than other schemes. Applying the finite element method is more effective, more intuitive analysis of carbon fiber composite failure mode, and can provide reference value for a certain type of fan drive shaft layer scheme, so as to improve the service life of the transmission shaft.