多孔钛压缩性能的2D和3D有限元对比分析.pdfVIP

第43卷第3期粉末冶金技术Vol.43,No.3

2025年6月PowderMetallurgyTechnologyJune2025

多孔钛压缩性能的2D和3D有限元对比分析

李玉华，贺羽昕，张仟，赵蓉，王豪杰，楚景慧，牛立斌

西安科技大学机械工程学院，西安710054

通信作者,E-mail:liyuhua@

摘要为了探究孔隙结构对多孔钛压缩性能的影响，对多孔钛压缩过程进行有限元模拟，研究孔隙率、孔径尺寸、孔隙形状

等不同孔隙结构参数对多孔钛压缩性能的影响规律，同时对2D和3D有限元模拟结果进行对比分析。结果表明：多孔钛弹性模

量和屈服强度均随孔隙率增大而减小，孔径尺寸对压缩性能几乎无影响；在圆形、正方形和六边形三种孔隙形状中，圆形孔压

缩性能最好，针对椭圆形孔，压缩性能则随压缩方向孔洞尺寸减小而减小；2D和3D有限元模拟结果与Gibson-Ashby模型和

Nielsen模型一致，并与试验结果更接近；2D和3D有限元模拟结果均能正确反映孔隙结构对多孔钛压缩性能的影响，而2D压

缩模型的计算时间更短。

同多孔钛；有限元模拟；压缩性能；孔隙特征

关键词

分类号TG146.2；TF123

2Dand3Dfiniteelementcomparativeanalysisofcompressivepropertiesof

poroustitanium

LIYuhua,HEYuxin,ZHANGQian,ZHAORong,WANGHaojie,CHUJinghui,NIULibin

CollegeofMechanicalEngineering,XianUniversityofScienceandTechnology,Xian710054,China

Correspondingauthor,E-mail:liyuhua@

ABSTRACTInordertoinvestigatetheeffectofporestructureonthecompressionpropertiesofporoustitanium,thecompression

processofporoustitaniumwassimulatedbyfiniteelementmethod.Theinfluenceofdifferentporestructureparameterssuchas

porosity,poresizeandporeshapeonthecompressionperformanceofporoustitaniumwasstudied.Meanwhile,the2Dand3Dfinite

elementsimulationresultswerecomparedandanalyzed.Theresultsshowthatelasticmodulusandyieldstrengthofporoustitanium

decreasewiththeincreaseofporosity,andtheporesizehaslittleeffectonthecompressionproperties.Amongthethreekindsofpore

shapes,roundholehasthebestcompressionperformance.Forellipticalhole,thecompressionperformancedecreaseswiththedecrease

ofthesizeoftheholeinthecompressiondirection.The2Dand3DfiniteelementsimulationresultsareinagreementwithGibson-

AshbymodelandNielsenmodel,andareclosertotheexperimentalresults.Both2