OALib Journal期刊
ISSN: 2333-9721
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弹性地基上含格构复合材料夹层梁的能量法静力分析
DOI: 10.3969/j.issn.1671-7627.2015.05.013, PP. 79-85
Keywords: 能量法,复合材料夹层梁,格构,双参数模型,chebyshev多项式
Abstract:
基于能量法分析弹性地基上含格构复合材料夹层梁的静力学性能,采用双参数模型描述芯层和地基的力学性能;使用竖向弹簧和扭转弹簧描述格构的力学性能。取边界函数与chebyshev多项式的积作为上下面层的挠度试函数,既能保证试函数满足结构的几何边界条件,又能保证解的快速收敛性和数值计算的鲁棒性,计算结果与有限元分析相吻合。对影响结构挠度的上面层厚度、芯层厚度、格构宽度和格构数量进行了参数化分析,结果表明:面层厚度、格构宽度和数量是影响结构力学性能的重要参数,而芯层厚度的影响相对较小。在实际工程设计中,可通过合理选择夹层梁的面层厚度、格构宽度和数量达到既节约成本又满足力学性能要求的双重目的。
References
[1] | davalosjuliof,qiaopizhong.vinodramayanam,etal.torsionofhoneycombfrpsandwichbeamswithasinusoidalcoreconfiguration[j].compositestructures,2009,88:97-111.
|
[2] | alipourmm,shariyatm.ananalyticalglobal-localtaylortransformation-basedvibrationsolutionforannularfgmsandwichplatessupportedbynonuniformelasticfoundations[j].archivesofcivilandmechanicalengineering,2014,14:6-24.
|
[3] | shenhis,zhuzh.postbucklingofsandwichplateswithnanotube-reinforcedcompositefacesheetsrestingonelasticfoundations[j].europeanjournalofmechanicsa/solids,2012,35:10-21.
|
[4] | 龙驭球.弹性地基梁的计算[m].北京:人民教育出版社,1981.
|
[5] | 方海,刘伟庆,万里.格构增强型复合材料夹层结构的制备与受力性能[j].玻璃钢/复合材料,2009(4):67-69.
|
[6] | 方海,刘伟庆,万里.新型复合材料快速抢建抢修路面垫板[j].南京工业大学学报:自然科学版,2009,31(1):92-96.
|
[7] | 王平,方海,张强.桥梁复合材料防撞方案研究[j].世界桥梁,2012,40(3):46-49.
|
[8] | manaloac,aravinthant,karunasenaw,etal.flexuralbehaviourofstructuralfibrecompositesandwichbeamsinflatwiseandedgewisepositions[j].compositestructures,2010,92:984-995.
|
[9] | loujia,wangbing,mali,etal.freevibrationanalysisoflatticesandwichbeamsunderseveraltypicalboundaryconditions[j].actamechanicasolidasinica,2013,26(5):458-467.
|
[10] | daijin,thomashahnh.flexuralbehaviorofsandwichbeamsfabricatedbyvacuum-assistedresintransfermolding[j].compositestructures,2003,61:247-253.
|
[11] | wangzx,shenhs.nonlinearanalysisofsandwichplateswithfgmfacesheetsrestingonelasticfoundations[j].compositestructures,2011,93:2521-2532.
|
[12] | 鹫津久一郎.能量原理[m].尹泽勇,江伯南,译.北京:中国建筑工业出版社,1977.
|
[13] | timoshenkosp,goodierjn.theoryofelasticity[m].newyork:mcgraw-hill,1970.
|
[14] | 孙训方,方孝淑,关来泰.材料力学[m].北京:高等教育出版社,2002.
|
[15] | 陕西省建筑工程局科学研究所.黄土地基刚度系数的试验研究[j].勘查技术资料,1975,16:13-26.
|
[16] | fwatf,shixp,tansa.useofpasternakfoundationmodelinconcretepavementanalysis[j].transpeng,1996,122(4):323-328.
|
[17] | coskuni,enginh,ozmutlua.responseofafinitebeamonatensionlesspasternakfoundationundersymmetricandasymmetricloading[j].structengmech,2008,30(1):21-36.
|
[18] | zhouding.three-dimensionalvibrationanalysisofstructuralelementsusingchebyshev-ritzmethod[m].beijing:sciencepress,2007.
|
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