**5. Conclusions**

A method was developed in this study to investigate the tensile behavior of an ERG foam provided in two cell sizes, by taking advantage of in situ tensile tests under microtomography and microstructure-informed FE modeling:


**Author Contributions:** Investigation, Y.A., J.A., and J.L.; Methodology, S.D., E.M., and J.A.; Software, S.D. and J.L.; Supervision, S.D. and E.M.; Writing—original draft, Y.A. and S.D.; Writing—review & editing, S.D. and E.M.

**Funding:** This research received no external funding.

**Acknowledgments:** The authors would like to thank the ERG Aerospace Corporation for providing the foam samples.

**Conflicts of Interest:** The authors declare no conflict of interest.
