Scholarlink

<p>Ordered pore topological structures (OPTSs) offer enhanced degradation rate and bone mimicking mechanical properties at a single platform. Thus, it provides a valuable way for the design of biodegradable materials. Modeling the degradation or damage behavior of OPTS may assist to predict the growth of this technology. However, few attempts have been made to model the degradation response of OPTS under in vitro conditions. Therefore, there exists a need to develop a corrosion model that used to predict the damage behavior of OPTS. In this context, corrosion model was developed using finite element analysis (FEA). Further, coupled with continuum damage mechanics (CDM), then implemented via a user subroutine in Abaqus. The primary objective of the developed corrosion model is to capture the surface damage that occurs due to corrosion. Hexagonal-based unit cells used to fabricate the OPTS with different pore sizes. Additionally, experiments were conducted to evaluate the influence of different pore sizes on the degrading characteristics of hexagonal-based ordered pore topological Fe structures (H-OPTFS). For compatibility with Abaqus/Explicit, a FORTRAN-based user subroutine code was used in this reference. In addition, a framework based on continuum damage mechanics (CDM) and finite element (FE) has been provided and utilized with a built-in user subroutine code. This developed framework was further implemented to simulate the effects of mass loss caused by the varying pore sizes of H-OPTFS in a simulated bodily fluid (SBF) kept at a temperature of 37&#xa0;°C. The scope and strength of the correlations between simulated and experimental mass loss over 3, 7, 14, and 28&#xa0;days were explicitly quantified (showing the error approximately below 5%). This result shows better fit between the modeling approach and its reliability validated with physical tests.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Development of Corrosion Model for the Prediction of the Degradation Behavior of Ordered Pore Topological 3D Printed Fe Scaffolds

  • 期刊论文

  • 发表日期：

    2025年12月29日

查看全文
  • Dipesh Kumar Mishra,
  • Pulak Mohan Pandey,
  • Jayant Giri,
  • Hassen Sabeur

摘要

Ordered pore topological structures (OPTSs) offer enhanced degradation rate and bone mimicking mechanical properties at a single platform. Thus, it provides a valuable way for the design of biodegradable materials. Modeling the degradation or damage behavior of OPTS may assist to predict the growth of this technology. However, few attempts have been made to model the degradation response of OPTS under in vitro conditions. Therefore, there exists a need to develop a corrosion model that used to predict the damage behavior of OPTS. In this context, corrosion model was developed using finite element analysis (FEA). Further, coupled with continuum damage mechanics (CDM), then implemented via a user subroutine in Abaqus. The primary objective of the developed corrosion model is to capture the surface damage that occurs due to corrosion. Hexagonal-based unit cells used to fabricate the OPTS with different pore sizes. Additionally, experiments were conducted to evaluate the influence of different pore sizes on the degrading characteristics of hexagonal-based ordered pore topological Fe structures (H-OPTFS). For compatibility with Abaqus/Explicit, a FORTRAN-based user subroutine code was used in this reference. In addition, a framework based on continuum damage mechanics (CDM) and finite element (FE) has been provided and utilized with a built-in user subroutine code. This developed framework was further implemented to simulate the effects of mass loss caused by the varying pore sizes of H-OPTFS in a simulated bodily fluid (SBF) kept at a temperature of 37 °C. The scope and strength of the correlations between simulated and experimental mass loss over 3, 7, 14, and 28 days were explicitly quantified (showing the error approximately below 5%). This result shows better fit between the modeling approach and its reliability validated with physical tests.