复合材料非线性渐进损伤分析模型的建立及工程应用  

Establishment and Engineering Application of Nonlinear Progressive Damage Analysis Model of Composite Materials

作　　者：张承承[1] ZHANG Chengcheng(School of Energy and Power Engineering,Beihang University,Beijing 100191,China)

机构地区：[1]北京航空航天大学能源与动力工程学院,北京100191

出　　处：《材料导报》2020年第18期18030-18034,共5页Materials Reports

摘　　要：复合材料结构损伤是导致结构失效的重要原因之一。本研究基于复合材料渐进损伤分析方法建立了非线性分析模型,重点分析了强度失效准则和损伤演化规律,并结合有限元分析方法研究了含损伤复合材料结构的本构关系,基于ANSYS软件编制分析程序对结构的损伤过程进行了数值模拟。以此为基础研究了复合材料开孔壁板、肋板结构以及舵轴结构在不同类型载荷作用下的失效模式和极限承载力,并通过试验验证了数值模拟的正确性。结果表明,该模型对复合材料构件的损伤形式和强度预测精确度比较高,具有工程实际应用价值。The development and aggregation of composite damage,is one of the important reason to cause composite structure failure.In this paper,the nonlinear analysis model was established based on the composite progressive damage analysis method.The research effort focused on composite strength failure criterions and numerical simulation of damage evolution laws.Combined with the finite element analysis method,the constitutive relations containing damage was derived.The composite structure failure modes and ultimate bearing capacity of the plate with hole,I-plate and rudder shaft structures were studied under different types of load by ANSYS.Finally,the validity of the numerical simulation was approved by experiments.Results show that the nonlinear progressive damage model can precisely predict the damage development of composite structure,additionally,engineering practical application value of this analytical method has been proved.

关 键 词：复合材料 渐进损伤 非线性 工程构件 静力载荷 强度特性 

分 类 号：TB33[一般工业技术—材料科学与工程]