Improved Patient Outcomes in Prostheses Fit through Integrated 3D Digital Image Correlation and Finite Element Analysis
Abstract
The broad objective of this two-year research program is to advance and apply finite element analysis (FEA) based estimates of skin strain to improve our understanding of how clinical socket shaping strategy affects strain and socket fit. The two main aims of the research are (1) to improve FEA estimates of skin strain on the residual limb using direct measurements of strain from state-of-the-art digital image correlation (DIC) experiments and (2) to compare these strain measurements between contemporary clinical socket shaping strategies. In the first reporting period, we have successfully measured the strains using DIC on a plastic plug (simulated residual limb). The strains were measured through a clear diagnostic socket while a load was applied using a uniaxial testing frame. Finite element models of the simulated residual limb and the diagnostic socket were created and analyses were performed to replicate the DIC experiments. Preliminary results demonstrate good agreement between the experiments and analysis.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 2022
- Accession Number
- AD1174939
Entities
People
- Michael K Philen
- Michael Madigan
Organizations
- Virginia Tech