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多孔鈦合金拓?fù)鋬?yōu)化設(shè)計(jì)及性能研究
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河北科技大學(xué) 機(jī)械工程學(xué)院

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中圖分類號(hào):

TH122

基金項(xiàng)目:

河北省自然科學(xué)基金（E2017208128）；河北省技術(shù)創(chuàng)新引導(dǎo)計(jì)劃（20477706D）；中央引導(dǎo)地方科技發(fā)展資金（206Z1806G）；石家莊市科學(xué)技術(shù)研究與發(fā)展計(jì)劃（201200313A）


Topology Optimization Design and Performance Study of Porous Titanium Alloy
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Affiliation:

Hebei University of Science and Technology

Fund Project:

Natural Science Foundation of Hebei Province(E2017208128); Hebei Province Technology Innovation Guidance Program (20477706D); the Central Govern-ment-Guided Local Science and Technology Development Fund (206Z1806G); and the Shijia-zhuang City Science and Technology Research and Development Program (201200313A).

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    摘要:

    為了得到良好力學(xué)性能和高滲透性的鈦合金多孔結(jié)構(gòu)，需要在多孔結(jié)構(gòu)的孔隙率與其強(qiáng)度之間保持權(quán)衡。以人體膝關(guān)節(jié)脛骨假體為研究對(duì)象，首先，根據(jù)脛骨受力狀態(tài)，采用拓?fù)鋬?yōu)化設(shè)計(jì)并重構(gòu)不同載荷工況下的抗壓、抗剪單胞結(jié)構(gòu)(TO-P1、TO-P2、TO-S1、TO-S2)，與幾種常見的基本單胞結(jié)構(gòu)(BCC、FCC、RDC、DCC)進(jìn)行研究比較；其次，通過對(duì)不同類型多孔鈦合金進(jìn)行壓縮、剪切性能仿真，研究不同拓?fù)湫螒B(tài)的多孔鈦合金關(guān)于抗壓、抗剪的力學(xué)性能，并采用SLM技術(shù)成型多孔鈦合金壓縮試件，驗(yàn)證了仿真分析的有效性；最后，選擇力學(xué)性能較優(yōu)的4種多孔鈦合金進(jìn)行滲透性分析。結(jié)果表明，TO-S2結(jié)構(gòu)的抗壓、抗剪力學(xué)性能和滲透性能最為出色，適合作為壓剪載荷類植入物的多孔結(jié)構(gòu)。

    Abstract:

    To obtain titanium alloy porous structures with good mechanical properties and high permeability, a trade-off between the porosity of the porous structure and its strength needs to be maintained. Taking human knee tibial prosthesis as the research object, firstly, according to the stress state of the tibia, topology optimization is used to design and reconstruct the compressive and shear cell structures (TO-P1, TO-P2, TO-S1, TO-S2) under different loading conditions, and several common basic cell structures (BCC, FCC, RDC, DCC) are studied and compared; secondly, by performing different types of porous titanium alloys for compression and shear performance simulation, to research the mechanical properties of porous titanium alloys with different topologies regarding compression and shear resistance, and to verify the validity of the simulation analysis by forming porous titanium alloy compression specimens with SLM technology; finally, four porous titanium alloys with better mechanical properties were chosen for permeability analysis. The results show that the TO-S2 structure has the best compressive, shear mechanical properties and permeability, suitable for porous structures of compression-shear load type implants.

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引用本文

張永弟,孫寶鈺,王偉志,楊光.多孔鈦合金拓?fù)鋬?yōu)化設(shè)計(jì)及性能研究[J].稀有金屬材料與工程,2024,53(3):807~814.[zhangyongdi, sunbaoyu, wangweizhi, yangguang. Topology Optimization Design and Performance Study of Porous Titanium Alloy[J]. Rare Metal Materials and Engineering,2024,53(3):807~814.]
DOI：10.12442/j. issn.1002-185X.20230123

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  • 收稿日期:2023-03-09
  • 最后修改日期:2023-04-07
  • 錄用日期:2023-04-13
  • 在線發(fā)布日期: 2024-03-27
  • 出版日期: 2024-03-20