材料开发与应用2024，Vol.39Issue(3) ：99-109.

CFRP对称层合板等效弹性模量参数敏感性研究

Study on Parameter Sensitivity of Equivalent Elastic Modulus of CFRP Symmetric Laminates

张二庆 王绪超 赵鑫 胡艳志 王旭 马志魁
材料开发与应用2024，Vol.39Issue(3) ：99-109.
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CFRP对称层合板等效弹性模量参数敏感性研究

Study on Parameter Sensitivity of Equivalent Elastic Modulus of CFRP Symmetric Laminates

张二庆 1王绪超 2赵鑫 2胡艳志 3王旭 3马志魁4
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作者信息

  • 1. 上海尚辰宇通精密装备有限公司,上海 201611
  • 2. 上海大学绍兴研究院,浙江绍兴 312071
  • 3. 上海大学材料科学与工程学院,上海 200444
  • 4. 武汉理工大学材料科学与工程学院,湖北武汉 430070
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摘要

实际工程结构设计中往往将复合材料层合板看成均匀的各向异性板,并用等效弹性模量来表征层合板的刚度.为便于表征复合材料层合板的弹性性能,本研究从理论计算和ANSYS ACP仿真模拟两方面研究单层工程弹性常数与刚度系数的关系、[0/90]S正交对称层合板的等效弹性模量、准各向同性层合板的等效弹性模量和铺层顺序对对称层合板等效弹性模量的影响.结果表明,单层工程弹性常数与刚度系数有较为简单的对应关系;[0/90]S正交对称层合板的等效弹性模量约为单层正轴弹性模量EL与ET之和的一半;准各向同性层合板的等效弹性模量约为EL与ET之和的三分之一;改变铺层顺序后,层合板的等效弹性模量没有发生变化,但对层合板的弯曲刚度有较大影响;并用理论验证有限元解法的合理性,为复合材料层合板的应用设计提供了理论和仿真模拟指导.

Abstract

Composite laminates are often regarded as homogeneous anisotropic plates in practical engineering structure design,and the stiffness of laminates is characterized by equivalent elastic modulus.In order to characterize the elastic properties of composite laminates,the relationship between engineering constant and stiffness coefficient of the single-layer material,the e-quivalent elastic modulus of[0/90]S orthogonal symmetrical laminates,the equivalent elastic modulus of quasi-isotropic lami-nates and the effect of stacking sequence on the equivalent elastic modulus of symmetrical laminates are studied by theoretical calculation and ANSYS ACP simulation.It is fount out that there is a simple correspondence between the single-layer engineer-ing elastic constant and stiffness coefficient.The equivalent elastic modulus of[0/90]s orthogonal symmetric laminates is about half of the sum of single-layer on-axis engineering constants EL and ET on the main directions.The equivalent elastic modulus of the quasi-isotropic laminate is about one-third of the sum EL and ET on the main directions.The equivalent elastic modulus of laminated plate does not change after changing the ply drop order,but the ply drop order has a great influence on the bending stiffness of laminated plate.The rationality of the finite element method is verified by the theoretical calculation.This study can provide theoretical and simulation guidance for the application design of composite laminates.

关键词

ANSYS/ACP/仿真模拟/对称层合板/等效弹性模量

Key words

ANSYS ACP/simulation/symmetric laminate/equivalent modulus of elasticity

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出版年

2024
材料开发与应用
洛阳船舶材料研究所 中国造船工程学会船舶材料学术委员会

材料开发与应用

CSTPCD
影响因子：0.342
ISSN：1003-1545
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