层合板一个新的高队理论解析解

本以复合材料的Ｒｅｄｄｙ高阶理论为基础，引进一个位移函数Φ，将原来求解的微分方程组转化为一个高阶微分方程，得到了四边简支情况下的Ｎａｖｉｅｒ型解，和一对边简支另一对边任意情况下的Ｌｅｖｙ型解，中列举了算例进行比较，其数值结果和献上已有结果相吻合，表明本采用的解法是可靠的，Ｒｅｄｄｙ高阶理论未知数不多，但精度比一阶剪切变形理论要好，计算时地需剪切修正系数，计算较为简单。     

稀加筋层合板弯曲问题的半解析法

本文研讨的是复合材料稀加筋层合板的弯曲问题。取一挠度级数表达式满足内部控制方程，并由此导出相应的变形及内力显表达式。挠度试函数中的未知知量将通过边界条件和筋条与板面接触处的挠度协调，ｙ向转角协调求得。文中用此法计算了几个例题通过分析与比较，说明了这方法的合理性，并得到了一些新的结果。     

A new higher-order theory to laminated plates and shells

In this paper a new higher-order theory to laminated plates and shells is presented and then Symmetric and antisymmetric cross-ply laminated plates, cylindrie bending and bending of spherical shells are also studied. In order to examine the accuracy of the theory, several particular examples have been calculated. The numerical results are in good agreement with the exact solution, which shows the theory is possessed of higher accuracy and is easy to solve a problem with few unknowns.     

A NEW HIGHER-ORDER THEORY TO LAMINATED PLATES AND SHELLS

In this paper a new ltigher-order theory to laminated plates and shells is presented and tIII,I,vhcIlv t1v I)r‘..v(,III‘,lI(IIIIIthen symmetric and antisymmetric cross-ply lammated plates.cylmdric bending andbending of spherical shells are also studied.In order to examine the accuracy of the theory.!(‘IhI‘‘It.l‘uI.at:1‘(!l‘Ih(‘Ih(‘l)I:1..several particular examples have been calculated The numerical results are in goodagreement with the exdct solution.which shows the theory is possessed of higher accuracyand is easy to solve a problem with few unknowns.     

An analytical solution of rectangular laminated plates by higher-order theory

I.IntroductionSincecompositematerialshavesuperiormechanicalproperties,theyarewidelyconcernedbytechnicians.Fromtheclassicallaminatetheorytothefirst-ordersheardeformationtheoryandfromthehigher-ordertheorytotheelasticitytheory,thetheoriesoflaminatedplatesofcompositemeterialsgetfastdevelopment.TheNaviersolutionofsimplysupportedrectangularplateswasdevelopedbyWhitneyandLeissalllforclassicallaminatetheory.TheNaviersolutionwasdevelopedbyWhitneyandPaganol'1forthefirst-ordersheardeformationtheory.Th…     

层合板一个新的高阶理论解析解

本文以复合材料的Reddy高阶理论为基础,引进一个位移函数Φ,将原来求解的微分方程组转化为一个高阶微分方程,得到了四边简支情况下的Navier型解,和一对边简支另一对边任意情况下的Levy型解.文中列举了算例进行比较,其数值结果和文献上已有结果相吻合,表明本文采用的解法是可靠的.Reddy高阶理论未知数不多,但精度比一阶剪切变形理论要好,计算时无需用剪切修正系数,计算较为简单.     

纤维增强复合材料对称角叠层板的弯曲分析

1. 引言角叠层板是设计复合材料结构时常用的材料铺层形式,对于各层等厚度板,常用的有对称铺设(图1)和反对称铺设(图2)两种。     

一种新的叠层板壳高阶理论

本文提出了一种新的叠层板壳高阶理论,然后又研究了正交对称叠层板,反对称叠层板,圆柱弯曲和球壳弯曲问题.为了检验理论的准确性,文中计算了几个特殊例子,数值结果和精确解吻合得相当好,说明本理论具有较高的准确度,且表现出未知数较少,解题方便的优点.