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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>portfolio</title>
<link rel="stylesheet" href="style.css">
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Crimson+Pro:wght@300;400;500&display=swap" rel="stylesheet">
<link rel="icon" type="image/x-icon" href="/images/favicon_io/favicon.ico">
<!-- Glightbox CSS - REQUIRED for the carousel's styling -->
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/glightbox/dist/css/glightbox.min.css" />
</head>
<body>
<nav class="navigation">
<h1>
<a class="sitename" href="/">paul ducarme</a>
</h1>
<ul class="navigation-list">
<!-- <li><a href="research.html">research</a></li>-->
<li class="active"><a href="portfolio.html">portfolio</a></li>
<!-- <li><a href="resume.html">resume</a></li>-->
<li ><a href="projects.html">projects</a></li>
<li><a href="gallery.html">gallery</a></li>
<li><a href="about.html">about</a></li>
</ul>
</nav>
<main>
<h1>publications</h1>
<ul>
<li>
Ducarme P., Weber B., van Hecke M., Overvelde J.T.B.,
Exotic mechanical properties enabled by countersnapping instabilities,
PNAS, April 2025
<a href="http://www.pnas.org/doi/10.1073/pnas.2423301122">[open-access link]</a>,
<a href="https://www.science.org/doi/10.1126/science.ady6157">[featured in the weekly research highlights in Science]</a>
<figure class="gallery-item medium">
<a href="images/movies/countersnapping_in_hands.webm" data-gallery="my-gallery" data-type="video"
data-description="Countersnapping structure pulled by hand. Its mechanical response is counter-intuitive and leads to a wide range of exotic properties!">
<video autoplay loop muted playsinline preload="metadata" class="inline-video">
<source src="images/movies/countersnapping_in_hands.webm" type="video/webm">
</video>
</a>
<figcaption>countersnapping structure</figcaption>
</figure>
</li>
<li>
Ducarme P., Weber B., van Hecke M., Overvelde J.T.B.,
Simulating mechanical systems from
entities with arbitrarily complex deformation paths,
accepted
<a href="https://arxiv.org/abs/2510.19741">[preprint]</a>,
<a href="https://doi.org/10.1016/j.eml.2026.102476">[preproof]</a>
<a href="https://github.com/ducarme/springable">[github repository]</a>,
<a href="https://ducarme.github.io/springable/">[documentation]</a>
<figure class="gallery-item medium">
<a href="images/movies/metagripper.webm" data-gallery="my-gallery" data-type="video"
data-description="Simulation of a metafluidic gripper using the flexel framework. The metafluid is modeled by a single flexel with a multivalued pressure-volume curve.">
<video autoplay loop muted playsinline preload="metadata" class="inline-video">
<source src="images/movies/metagripper.webm" type="video/webm">
</video>
</a>
<figcaption>example of simulation using flexels</figcaption>
</figure>
</li>
<li>
Stinissen K, Ducarme P., Weber B., Gorissen B., Overvelde J.T.B.,
Functionalities enabled by pneumatic countersnapping instabilities, in preparation
</li>
<li>
Kurt E., Ducarme P., Picella S., Overvelde J.T.B.,
Heat-induced instabilites in silicone-LCE
composite structures for locomotion, in preparation
</li>
<li>
Ducarme P., Koppen S., Overvelde J.T.B.,
Computation of deformation paths for stimuli-driven nonlinear reconfigurable structures,
in preparation
</li>
</ul>
<h1>awards</h1>
<ul>
<li>
Best poster award,
2024 Multifunctional Materials and Structures Gordon’s research conference (GRC),
Ventura, California, United States
<figure class="gallery-item medium">
<a href="images/thumbnails/large/poster_award.jpg" data-gallery="my-gallery"
data-description="Best poster award at GRC 2024 Multifunctional Materials and Structures.">
<picture>
<source srcset="images/thumbnails/poster_award.webp" type="image/webp">
<img src="images/thumbnails/poster_award.jpg"
alt="Best poster award at GRC 2024 Multifunctional Materials and Structures." loading="lazy">
</picture>
</a>
<figcaption>best poster award, GRC 2024</figcaption>
</figure>
</li>
</ul>
<h1>outreach</h1>
<ul>
<li>
Featured in and collaborated with <em>Veritasium</em> (18M+ subscribers) on video "This mechanism shrinks when pulled" (10M+ views). Discussed and showcased research on countersnapping instabilities on screen and prepared animations.<br>
<a href="https://www.youtube.com/watch?v=-QTkPfq7w1A">[video link]</a>
<figure class="gallery-item medium">
<a href="images/thumbnails/large/veritasium.jpg" data-gallery="my-gallery"
data-description="Thumbnail of the <em>Veritasium</em> video featuring me and my countersnapping structure. YouTube, 2025.">
<picture>
<source srcset="images/thumbnails/veritasium.webp" type="image/webp">
<img src="images/thumbnails/veritasium.jpg" alt="veritasium video countersnapping paul ducarme braess paradox"
loading="lazy">
</picture>
</a>
<figcaption>featured on <em>Veritasium</em></figcaption>
</figure>
</li>
<li>
Movie showing countersnapping instabilities in action (1m24s),
'These structures shrink when pulled: counter-snapping instabilities',
seen on YouTube over 300k times,
<a href="https://www.youtube.com/watch?v=KxtkcL0z5j0">
watch the movie on YT</a>
<figure class="gallery-item medium">
<a href="images/thumbnails/large/countersnapping_movie.PNG" data-gallery="my-gallery"
data-description="Movie showing countersnapping instabilities in action. YouTube, 2025.">
<picture>
<source srcset="images/thumbnails/countersnapping_movie.webp" type="image/webp">
<img src="images/thumbnails/countersnapping_movie.PNG"
alt="short promo movie countersnapping paul ducarme amolf views buzz contract tension structure" loading="lazy">
</picture>
</a>
<figcaption>countersnapping promo movie</figcaption>
</figure>
</li>
<li>
Design of a 3d-printed hand-actuated soft gripper for the Nemo Science Museum,
Exhibition 'Inventors from nature' (Dutch: 'Uitvinders uit de natuur'),
2023, Amsterdam, Netherlands
<a href="https://www.nemosciencemuseum.nl/nl/over-nemo/pers/persberichten/nieuwe-editie-de-makerij/">
[exhibition link]
</a>
<figure class="gallery-item medium">
<a href="images/thumbnails/large/gripper.jpg" data-gallery="my-gallery"
data-description="3d-printed hand-actuated soft gripper for the Nemo Science Museum. Amsterdam, 2023.">
<picture>
<source srcset="images/thumbnails/gripper.webp" type="image/webp">
<img src="images/thumbnails/gripper.jpg"
alt="Design of a 3d-printed hand-actuated soft gripper for the Nemo Science Museum"
loading="lazy">
</picture>
</a>
<figcaption>soft gripper for the Nemo Science Museum</figcaption>
</figure>
</li>
</ul>
<h1>press</h1>
<ul>
<li>
Work on countersnapping instabilities featured on Dutch national radio.
<a href="https://www.nporadio1.nl/fragmenten/nos-met-het-oog-op-morgen/0198246a-45d2-708a-bdd1-61a28592d9d8/2025-07-19-countersnapping-wat-is-het-en-wat-kan-je-ermee">
[Co-author Martin van Hecke's interview on NPO 1 (in Dutch)]</a>
</li>
<li>
'Vernuftig ontwerp zorgt voor eigenwijs gedrag',
2025, deingenieur.nl
<a href="https://deingenieur.nl/artikelen/vernuftig-ontwerp-zorgt-voor-eigenwijs-gedrag">
[read article]
</a>
</li>
<li>
'New structures shrink instead of stretching when pulled',
2025, newsatlas.com
<a href="https://newatlas.com/physics/countersnapping-shrink-stretching-pulled-amolf/">
[read article]
</a>
</li>
<li>
'Countersnapping structures shrink when pulled',
2025, techxplore.com
<a href="https://https://techxplore.com/news/2025-05-countersnapping.html">
[read article]
</a>
</li>
</ul>
<h1>talks and posters</h1>
<h2>talks</h2>
<ul>
<li>
Exotic properties enabled by counter-snapping instabilities,
2024 SES Annual Technical Meeting,
Hangzhou, China
<a href="https://www.2024ses.com/index/page.html?id=1018">
[description of session 9.2]
</a>
</li>
<li>
Exotic functionalities enabled by counter-snapping instabilities,
2024 Multifunctional Materials and Structures Gordon’s research seminar (GRS),
Ventura, California, United States
<a href="https://www.grc.org/multifunctional-materials-and-structures-grs-conference/2024/">
[link]
</a>
</li>
<li>
Surprising deformations in structures made out flexibles building blocks,
2023 Creative Differences Workshop (London Design Biennal),
London, United Kingdom
<a href="https://www.automorphnet.com/workshop">[link]</a>
</li>
<li>
Exotic properties enabled by a mechanical metamaterial that contracts under increasing tension,
2023 APS March Meeting,
Las Vegas, Nevada, United States
<a href="https://meetings.aps.org/Meeting/MAR23/Session/M07.2">
[abstract]
</a>
</li>
<li>
Design of a mechanical metamaterial with a negative displacement transition,
2022 Modern Mechanics Plus Workshop,
Amsterdam, Netherlands
</li>
</ul>
<h2>posters</h2>
<ul>
<li>
Exploring countersnapping instabilities and more in silicone and in silico,
2025 Functionality Through Nonlinearity,
London, United Kingdom
<figure class="gallery-item portrait narrow">
<a href="images/thumbnails/large/poster_ftn2025.png" data-gallery="my-gallery"
data-description="Poster presented at Functionality Through Nonlinearity. London, 2025.">
<picture>
<source srcset="images/thumbnails/poster_ftn2025.webp" type="image/webp">
<img src="images/thumbnails/poster_ftn2025.png" alt="poster london functionality through nonlinearity 2025"
loading="lazy">
</picture>
</a>
<figcaption>poster FTN 2025</figcaption>
</figure>
</li>
<li>
Exotic properties enabled by counter-snapping instabilities,
2024 Soft Robotics PhD Conference,
Leuven, Belgium
</li>
<li>
Exotic properties enabled by counter-snapping instabilities,
2024 SES Annual Technical Meeting,
Hangzhou, China
</li>
<li>
Exotic functionalities enabled by counter-snapping instabilities,
2024 Multifunctional Materials and Structures Gordon’s research conference (GRC),
Ventura, California, United States
</li>
</ul>
</main>
<footer>
<p> Contact me via
<a href="mailto:paulducarme@hotmail.com">email</a> or
<a href="https://www.linkedin.com/in/paul-ducarme/" target="_blank" rel="noopener noreferrer">linkedin</a>.
</p>
</footer>
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