PLA-based 3D printed porous scaffolds under mixed-mode I/III loading

被引：5

作者：

Ilyaei, Sina ^{[1
]}

Abubasir, Yousef ^{[2
]}

Sourki, Reza ^{[3
]}

机构：

[1] Islamic Azad Univ, Dept Mech Engn, Takestan Branch, Qazvin, Iran

[2] Islamic Azad Univ, Dept Mech Engn, Abhar Branch, Zanjan, Iran

[3] Univ British Columbia, Sch Engn, Vancouver, BC, Canada

来源：

ENGINEERING FRACTURE MECHANICS | 2022年 / 265卷

关键词：

Additive manufacturing; Crack growth; Mixed -mode loading; Porous scaffold; CRACK-GROWTH DIRECTION; FRACTURE CHARACTERIZATION; TENSILE BEHAVIOR; PLASTIC ZONE; BONE; CRITERION; MANUFACTURE; IMPLANTS; STRESS;

D O I：

10.1016/j.engfracmech.2022.108382

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Additive manufacturing technologies, due to their unique manufacturing features, have been viewed as a potential alternative to the conventional production of medical implants. Biome-chanical structures, however, are susceptible to crack growth under constant loading conditions, which can occur due to mixed-modes of loadings. Here, the effects of mixed-mode I/III loading conditions on 3D printed porous scaffolds were investigated. Different design parameters like pore size and geometry were analyzed. Numerical analysis was utilized to explore the stress in-tensity factor distribution under various loading conditions. Results revealed that the size, shape, density, and pattern of pores had critical impacts on mechanical strength.

引用

页数：12

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