DLML: Damage and Loss Model Library (latest version 3.1)

The Damage and Loss Model Library (DLML) is a curated, open, version-controlled library of damage and loss models for natural-hazard risk assessment of the built environment. It brings the component library from FEMA P-58, the building and infrastructure models from FEMA Hazus, and peer-reviewed models from the research community into one standardized, machine-readable format — spanning earthquake, hurricane, and flood, and covering individual building components as well as whole buildings and water, power, and transportation network assets.

Three commitments shape the library:

  • Traceable. Every model carries a reference to its source, so you can go back to the original and credit the people who developed it.
  • Version-controlled. Every model belongs to a released snapshot, so an analysis can be tied permanently to the exact data it used - for reproducible research and defensible practice.
  • Open. BSD 3-Clause licensed, commercial use included, free forever.

The DLML is the model source behind Pelicun, the SimCenter's damage-and-loss engine, and so underlies the analyses run in the PBE and R2D applications.

Help us grow it

The library is meant to keep growing. If you have fragility or consequence models you would like to see included — your own, or ones you wish were easier to find — we would like to hear from you, and we are glad to add them to the library. We ask one thing of every model: a publication or report documenting it, so the library stays trustworthy. The SimCenter Wind Component Library shows what that looks like in practice.

Links:

Source code in GitHub

10.5281/zenodo.7951657

Explore the library in your browser

A FEMA P-58 suspended ceiling model showing its technical notes, first damage state with repair action, and fragility curves for three damage states.

Each model’s information in one panel: technical notes, damage states, repair actions, fragility curves.

The DLML Explorer is the easiest way to discover the models. It is a web application — no account, no installation, nothing to configure. 

With it you can:

  • Search in plain language or by component ID, or browse the library by hazard, asset type, and source.
  • Inspect any model: its damage states, repair actions, interactive fragility and consequence curves, and the full parameter table — alongside the reference it came from.
  • Compare candidate models side by side to decide what fits your project.
  • Collect and download the models you need as ready-to-use CSV files.

If you would rather work with the data directly, the library is also a Python package: pip install simcenter-dlml gives you the full dataset plus an API for reading parameters, metadata, and schemas. The GitHub repository has the details, and you can run the Explorer on your own machine to browse your private, unpublished models alongside the public ones. 

DLML Explorer Acknowledgments

We gratefully acknowledge the generous in-kind contribution from Degenkolb Engineers, which supported the development work on the DLML Explorer. This material is based upon work supported by the U.S. National Science Foundation under Grants No. 1612843 and No. 2131111. Any opinions, findings, conclusions, or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the U.S. National Science Foundation or Degenkolb Engineers.

 

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How to cite:

Zsarnoczay, A., Lee, T., Vouvakis Manousakis, I. (2026). NHERI-SimCenter/DamageAndLossModelLibrary: v3.1. Zenodo. https://doi.org/10.5281/zenodo.7951657

Zsarnóczay, A., et al., (2025) An open-source simulation platform to support and foster research collaboration in natural hazards engineering. Front. Built Environ. 11:1590479. doi: 10.3389/fbuil.2025.1590479