Structural Optimization of Magnesium Alloy Rib Claw and Evaluation of Its Mechanical Reliability In Vitro and In Vivo.

Jie Shen, Ziming Wang, Hua Huang, Zhenhua Chu, Jian Zhang, Lin Yin

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Article in Materials (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

6 authors.

Jie ShenDepartment of Mechanical Engineering, College of Engineering, Shanghai Ocean University, Shanghai 201306, China.

Ziming WangDepartment of Mechanical Engineering, College of Engineering, Shanghai Ocean University, Shanghai 201306, China.

Hua HuangNational Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composite, Shanghai Jiao Tong University, Shanghai 200240, China.ORCID 0000-0002-2520-8938

Zhenhua ChuDepartment of Mechanical Engineering, College of Engineering, Shanghai Ocean University, Shanghai 201306, China.ORCID 0000-0001-6016-8348

Jian ZhangShanghai Innovation Medical Technology Co., Ltd., Shanghai 201306, China.

Lin YinShanghai Innovation Medical Technology Co., Ltd., Shanghai 201306, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The structural optimization and mechanical reliability of novel biodegradable JDBM magnesium alloy rib claws were investigated in this study. Simulation analysis, in vitro bending tests, and a 24-week animal implantation experiment demonstrated the promising application potential of the optimized Gen3 magnesium alloy rib claw. Compared with the pre-optimized Gen1 design, finite element analysis (FEA) confirmed that the Gen3 claw-achieved by increasing the width from 6.0 mm to 8.52 mm and adding 1.65 mm transitional fillets at stress concentration zones-resulted in a 54.15% reduction in the maximum von Mises stress (from 116.91 MPa to 53.59 MPa) and a 54.4% decrease in the equivalent strain. In vitro four-point bending tests (ASTM F382-compliant, 11.7 mm span) showed that the Gen3 magnesium claws exhibited a significantly higher yield load (358 ± 21 N) compared with titanium claws (219 ± 16 N;

Indexed as

finite element analysisin vivo evaluationmagnesium alloy rib clawsmechanical reliabilitystructural optimization

Identifiers

PMID42124239

DOI10.3390/ma19091833

PMCPMC13165433

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LicenceCC BY

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