汽车复合材料板弹簧单向层压板的性能研究

Analysis of Laminate Used for the Composite Leaf Spring in the Automobile

本文研究了复合材料板弹簧用层压板的基本力学性能、耐高低温性能和耐油性能。结果表明:复合材料层压板的性能满足板弹簧实际工况的要求。复合材料层压板的拉伸强度和弯曲强度分别为1120MPa和1329MPa,复合材料层压板的拉伸强度在-40℃环境下保留率为94.15%,70℃环境下保留率为98%。复合材料层压板的弯曲强度在机油、93#汽油和0#柴油中浸泡90天后的变化率分别为-3.25%、-2.99%和-2.05%。

This work focus on the mechanical properties,the resistance to high-low temperature and oil performance of the composite laminate for manufacturing leaf spring.It indicates that the performance of the composite laminate meet the working condition requirements of the leaf spring.The tensile strength and flexural strength of the composite laminate were 1120 MPa and 1329 MPa,respectively.The retention rate of tensile strength of the composite laminate was 94.15% at-40 ℃ and 98% at 70℃,respectively.After socked 90 days,the rate of change of flexural strength was-3.25% in engine oil,-2.99%in 93 # gasoline and -2.05% in 0 # diesel oil,respectively.