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Related Experiment Video

Updated: Nov 18, 2025

Casting Protocols for the Production of Open Cell Aluminum Foams by the Replication Technique and the Effect on Porosity

Casting Protocols for the Production of Open Cell Aluminum Foams by the Replication Technique and the Effect on Porosity

Published on: December 11, 2014

Open cell polyurethane foam compression failure characterization and its relationship to morphometry.

Ricardo Belda¹, Marta Palomar¹, Miguel Marco²

¹Centre of Research in Mechanical Engineering - CIIM, Dept. of Mechanical Engineering and Materials, Universitat Politècnica de València, Camino de Vera, 46022 Valencia, Spain.

Materials Science & Engineering. C, Materials for Biological Applications

|February 6, 2021

Summary

Open cell polyurethane foams mimic cancellous bone. Their morphometric and mechanical properties, especially inhomogeneities in high-density foams, significantly influence failure location and anisotropic response, crucial for orthopedic implant applications.

Keywords:

Compression fracture characterization Digital image correlation Micro-FE Morphometric characterization Open cell foam

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Last Updated: Nov 18, 2025

Casting Protocols for the Production of Open Cell Aluminum Foams by the Replication Technique and the Effect on Porosity

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Published on: December 11, 2014

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Manufacturing of Three-dimensionally Microstructured Nanocomposites through Microfluidic Infiltration

Published on: March 12, 2014

Area of Science:

Biomaterials Science
Mechanical Engineering
Orthopedic Research

Background:

Open cell polyurethane foams are widely used as cancellous bone surrogates due to similar morphology and mechanical behavior.
Understanding their morphometric and mechanical properties is essential for effective application in biomedical fields.

Purpose of the Study:

To characterize open cell polyurethane foams of varying densities morphometrically and mechanically.
To investigate the relationship between foam morphometry, inhomogeneities, and mechanical response, including elastic and failure properties.
To assess the anisotropic mechanical behavior of these foams.

Main Methods:

Micro-computed tomography (micro-CT) imaging for morphometric analysis.
Mechanical testing to evaluate elastic and failure properties.
Finite element modeling (FEM) to estimate material properties and failure mechanisms.

Main Results:

High-density foams exhibited greater morphometric inhomogeneities, which were found to promote specific failure locations.
Significant relationships were identified between foam morphometry and its elastic and failure responses.
Anisotropic mechanical responses were observed and linked to morphometric inhomogeneities.

Conclusions:

Morphometry critically influences the mechanical performance of open cell polyurethane foams.
The study provides valuable data on elastic constants and strength limits for researchers and practitioners.
These findings are pertinent for the use of polyurethane foams in orthopedic implants and cement augmentation.