add info

ducarme · ducarme · commit e47e28fd2e89 · 2025-04-25T16:09:50.000+02:00
diff --git a/content/article-1.md b/content/article-1.md
@@ -5,6 +5,7 @@ Category: Blog
 Tags: tag1, tag2
 Authors: Vivamus venenatis
 Summary: Interdum et malesuada fames ac ante ipsum primis in faucibus.
+Status: draft
 
 Lorem ipsum dolor sit amet, consectetur adipiscing elit. Suspendisse efficitur viverra ante, sit amet euismod nisl euismod eu. Fusce sed suscipit mi, ut sodales nisl. Vivamus consectetur sapien vitae sodales gravida. Pellentesque scelerisque risus non augue pharetra tincidunt. Nulla in accumsan metus. Sed eros neque, elementum non posuere a, fringilla vitae eros. Donec vestibulum neque vitae metus elementum, vitae dapibus erat malesuada. Aenean eros purus, faucibus id dictum in, sollicitudin vitae nunc. Suspendisse eget mauris suscipit, rutrum elit ac, rhoncus arcu. Vivamus venenatis quam purus, ac rutrum orci aliquam gravida. Fusce ac magna sed augue pharetra tempus sit amet in orci.
 
diff --git a/content/article-2.md b/content/article-2.md
@@ -6,6 +6,9 @@ Tags: tag1
 Authors: Vivamus venenatis
 Image: https://placehold.jp/500x500.png
 Summary: Nulla dolor felis, convallis pellentesque ligula nec, ultricies hendrerit tellus. Donec sit amet ipsum nec eros porta sollicitudin eu dapibus neque. Nullam felis sapien, faucibus ut elit quis, eleifend fringilla mi.
+Status: draft
+
+
 
 Lorem ipsum dolor sit amet, consectetur adipiscing elit. Suspendisse efficitur viverra ante, sit amet euismod nisl euismod eu. Fusce sed suscipit mi, ut sodales nisl. Vivamus consectetur sapien vitae sodales gravida. Pellentesque scelerisque risus non augue pharetra tincidunt. Nulla in accumsan metus. Sed eros neque, elementum non posuere a, fringilla vitae eros. 
 
diff --git a/content/article-3.md b/content/article-3.md
@@ -5,6 +5,9 @@ Tags: tag2
 Authors: Vivamus venenatis
 Summary: Lorem ipsum dolor sit amet, consectetur adipiscing elit. Suspendisse efficitur viverra ante, sit amet euismod nisl euismod eu. Fusce sed suscipit mi, ut sodales nisl. Vivamus consectetur sapien vitae sodales gravida. Pellentesque scelerisque risus non augue pharetra tincidunt. Nulla in accumsan metus. Sed eros neque, elementum non posuere a, fringilla vitae eros. 
 Image: https://placehold.jp/500x500.png
+Status: draft
+
+
 
 Lorem ipsum dolor sit amet, consectetur adipiscing elit. Suspendisse efficitur viverra ante, sit amet euismod nisl euismod eu. Fusce sed suscipit mi, ut sodales nisl. Vivamus consectetur sapien vitae sodales gravida. Pellentesque scelerisque risus non augue pharetra tincidunt. Nulla in accumsan metus. Sed eros neque, elementum non posuere a, fringilla vitae eros. 
 
diff --git a/content/pages/about.md b/content/pages/about.md
diff --git a/content/pages/bio.md b/content/pages/bio.md
@@ -0,0 +1,36 @@
+Title: Bio
+
+
+## PhD at AMOLF and ARCNL (Amsterdam, Netherlands)
+
+## Master of Science at University of Liege (Belgium)
+with focus on mechanical engineering. Magna Cum Laude
+
+### Exchange with University of Ottawa (ON, Canada)
+Focus: reinforcement learning, mechatronics
+
+### Master project in collaboration with Safran in Liege, Belgium
+
+Goal: re-design of the front bearing support of the jet engine, to reduce the number of parts and have a more integrated
+design that can be 3d printed. A key challenge was to design the structure to fail for specific critical load cases,
+which is ordinarily achieved with calibrated, machined bolt. Since 3d printing does not permit high part accuracy, my group and I
+designed a system of integrated beams able to suddenly buckle and fail under the specific loading conditions.
+
+### Master thesis at company, AnyShape in Liege, Belgium
+
+Goal: determining the printing parameters of the selective laser melting technique to optimize speed while ensuring
+sufficient part quality. I experimentally identified regions in the parameter space where keyhole instabilities,
+Rayleigh-Plateau instabilities or insufficient powder particle fusion where taking place and affecting quality
+due to poor density, thereby delimiting a suitable window of printing parameters.
+
+### Student job at Aerosint in Liege, Belgium
+Goal: designing and building a machine to stretch Teflon tubes.
+
+## Bachelor of Science at University of Liege (Belgium)
+general engineering with focus on physics, quantum mechanics, mechanical engineering, OOP programming. Cum Laude
+
+## Hobby's
+chess, biking, photography, indoor football, bouldering
+
+
+
diff --git a/content/pages/contact.md b/content/pages/contact.md
@@ -1,10 +1,4 @@
 Title: Contact
 
-### email
-paulducarme@hotmail.com
-
-### google scholar
-ddd
-
-### research gate
-ddd
+## Send me an email to
+paulducarme@hotmail.com
diff --git a/content/pages/photos.md b/content/pages/photos.md
@@ -0,0 +1,17 @@
+Title: Photos
+Template: photos
+
+<figure>
+  <img src="https://placehold.jp/300x300.png" alt="Sunset over the hills">
+  <figcaption>Sunset over the hills</figcaption>
+</figure>
+
+<figure>
+  <img src="https://placehold.jp/300x300.png" alt="Misty forest">
+  <figcaption>Misty forest</figcaption>
+</figure>
+
+<figure>
+  <img src="https://placehold.jp/300x300.png" alt="Ocean waves">
+  <figcaption>Ocean waves</figcaption>
+</figure>
diff --git a/content/pages/research.md b/content/pages/research.md
@@ -0,0 +1,11 @@
+Title: Research
+Save_as: index.html
+
+I'm a researcher interested in nonlinear mechanics and metamaterials! I seek a deeper understanding of the interplay between
+geometry and elasticity in structures. In particular, I'm focusing on harnessing instabilities to embed complex behaviors
+and functions in mechanical systems.
+
+What structural design lead to a given functionality? Can we find
+the building blocks to assemble to form a structure with a desired deformation path?
+
+
diff --git a/content/projects/project-1.md b/content/projects/project-1.md
@@ -4,6 +4,8 @@ Lead: Quisque consequat auctor Nunc aliquet
 Date: 2018-12-03
 Link: www.example.com
 Image: https://placehold.jp/300x300.png
+Status: draft
+
 
 Pellentesque sit amet orci enim. Etiam et elementum tellus, eu mattis sapien. Aenean mauris nulla, euismod id imperdiet in, fringilla ut odio. Donec ut metus ullamcorper magna eleifend ultricies. Praesent suscipit, felis a congue dapibus, metus diam volutpat risus, ut suscipit mi diam at lorem. Nulla vel quam ut orci vestibulum porttitor vehicula eu nisi. 
 
diff --git a/content/projects/project-2.md b/content/projects/project-2.md
@@ -4,6 +4,7 @@ Lead: Quisque consequat auctor Nunc aliquet
 Date: 2020-12-03
 Link: www.example.com
 Image: https://placehold.jp/300x300.png
+Status: draft
 
 Pellentesque sit amet orci enim. Etiam et elementum tellus, eu mattis sapien. Aenean mauris nulla, euismod id imperdiet in, fringilla ut odio. 
 
diff --git a/content/projects/project-3.md b/content/projects/project-3.md
@@ -3,6 +3,7 @@ Category: Projects
 Date: 2022-12-03
 Link: www.example.com
 Image: https://placehold.jp/300x300.png
+Status: draft
 
 Pellentesque sit amet orci enim. Etiam et elementum tellus, eu mattis sapien. Aenean mauris nulla, euismod id imperdiet in, fringilla ut odio. 
 
diff --git a/content/publications/countersnapping.md b/content/publications/countersnapping.md
@@ -0,0 +1,10 @@
+Title: Exotic mechanical properties enabled by countersnapping instabilities
+Category: Publications
+Journal: PNAS
+Authors: Paul Ducarme, Bart Weber, Martin van Hecke, Johannes T.B. Overvelde
+Issue: 122 (16)
+Date: 2025
+Link: https://www.pnas.org/doi/10.1073/pnas.2423301122
+Image: https://placehold.jp/300x300.png
+
+Mechanical snapping instabilities are leveraged by natural systems, metamaterials, and devices for rapid sensing, actuation, and shape changes, as well as to absorb impact. In all current forms of snapping, shapes deform in the same direction as the exerted forces, even though there is no physical law that dictates this. Here, we realize countersnapping mechanical structures that respond in the opposite way. In contrast to regular snapping, countersnapping manifests itself in a sudden shortening transition under increasing tension or a sudden increase in tensile force under increasing extension. We design these structures by combining basic flexible building blocks that leverage geometric nonlinearities. We demonstrate experimentally that countersnapping can be employed to obtain new exotic properties, such as unidirectional stick–slip motion, switchable stiffness that does not otherwise affect the state of the system, and passive resonance avoidance. Moreover, we demonstrate that combining multiple countersnapping elements allows sequential stiffness switching for elements coupled in parallel, or instantaneous collective switching for elements in series. By expanding the repertoire of realizable elastic instabilities, our work opens routes to principles for mechanical sensing, computation, and actuation.
diff --git a/content/publications/pub-1.md b/content/publications/pub-1.md
diff --git a/content/publications/pub-2.md b/content/publications/pub-2.md
diff --git a/content/publications/pub-3.md b/content/publications/pub-3.md
diff --git a/content/publications/springable.md b/content/publications/springable.md
@@ -0,0 +1,26 @@
+Title: Nonlinear spring simulation with springable
+Category: Publications
+Journal: In preparation
+Authors: Paul Ducarme, Bart Weber, Martin van Hecke, Johannes T.B. Overvelde
+Issue: 
+Date: 2025
+Image: https://placehold.jp/300x300.png
+
+In recent years, nonlinearities in mechanical structures have shown great promise in providing solutions to embed advanced
+functionalities in mechanical systems. However, designing structures subject to nonlinearities can be challenging due to
+the complexity of their behavior. For example, nonlinearities can cause a structure to become unstable, buckle, snap and
+reconfigure completely. While the traditional finite element analysis (FEA) is a great tool to simulate a specific nonlinear
+structure quantitatively, it is often very cumbersome to use in the early stage of the design process where one often seeks
+to quickly and easily explore many various design ideas, and gain insight into the nontrivial influence of certain design
+parameters on the mechanical response. Moreover, the large number of degrees of freedom involved in traditional FEA hinder
+the intuitive phenomenology, makes this approach computationally expensive, and unreliable when instabilities are involved.
+In other words, despite the growing interest in harnessing nonlinearities and instabilities for functional devices, quick,
+robust and intuitive design approaches are lacking.
+In this work, we developed a tool to assist students, academics and engineers in gaining a better insight into nonlinearities,
+instabilities and reconfigurations, and in designing these unconventional structures. It consists of an easy-to-use Python
+library that allows to model simple or complex structures in just a few minutes and robustly simulate them in a matter of
+seconds. The key idea consists of representing structures as assemblies of linear or nonlinear (longitudinal, rotational)
+springs, thereby allowing to quickly solve, iterate and identify relevant parameters. We demonstrate how our approach can
+help understand and design nonlinear structures through many concrete examples ranging from soft inflatable or wire-driven
+actuators to metamaterials capable of complex snapping sequences. With this work, we envision eliminating a practical
+barrier for the design of engineering systems that harness nonlinear mechanical behavior.
diff --git a/content/talks/talk-1.md b/content/talks/talk-1.md
@@ -1,7 +1,7 @@
-Title: Mauris semper mi quis elit dignissim lobortis
+Title: Exotic Properties Enabled by a Mechanical Metamaterial that Contracts Under Increasing Tension
 Category: Talks
-Location: Quisque consequat auctor
-Date: 2018-12-03
-Link: www.example.com
+Location: APS March Meeting, Las Vegas, NV, USA
+Date: 2023-03-08
+Link: https://ui.adsabs.harvard.edu/abs/2023APS..MARM07002D/abstract
 
-Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam ut orci dui. Quisque consequat auctor nisl, quis pretium lectus. Nulla et facilisis lectus, at commodo mi. Fusce suscipit ultricies condimentum. Mauris semper mi quis elit dignissim lobortis. Phasellus in accumsan nibh. Nunc aliquet mi ligula, vel elementum purus tincidunt et.
+All known materials and structures elongate in response to an increasing tensile force. Recently it has been suggested that this behavior is not inevitable: a sudden and finite contraction under an increasing quasistatic tension load could theoretically be observed in a nonlinear mechanical network satisfying a Wheatstone bridge topology. Inspired by this theoretical prediction, we design and manufacture a mechanical structure that displays this counter-intuitive phenomenon. The design is obtained by combining modular building blocks made of an elastic material. Each building block exploits geometric nonlinearities to show either a softening, stiffening or nonmonotonic tensile mechanical response. We then develop a numerical tool to investigate the collective behavior of assemblies made of these building blocks, which guides us towards the final design. Our work uncovers the design principles to build a structure that contracts under tension and brings to light potentially useful associated properties, thereby further expanding the design space for smart structures, MEMS and mechanical metamaterials that could harness these novel mechanical behaviors to achieve advanced functionalities. 
diff --git a/content/talks/talk-2.md b/content/talks/talk-2.md
@@ -3,5 +3,6 @@ Category: Talks
 Location: Nullam ac lectus pretium, lacinia erat venenatis, lobortis risus
 Date: 2020-12-03
 Link: www.example2.com
+Status: draft
 
 Nullam et felis sit amet ex tristique cursus. Nullam ac lectus pretium, lacinia erat venenatis, lobortis risus. Nam enim nulla, tempus sed nisl quis, bibendum fringilla tortor. Pellentesque rhoncus sit amet tortor pretium tempor. Mauris id mauris auctor, venenatis justo at, pellentesque leo. Ut at diam sit amet velit consectetur bibendum eget ut dui.
diff --git a/content/talks/talk-3.md b/content/talks/talk-3.md
@@ -4,5 +4,6 @@ Location: Pellentesque sit amet orci enim
 Date: 2022-12-03
 Link: www.example3.com
 Image: https://placehold.jp/300x300.png
+Status: draft
 
 Pellentesque sit amet orci enim. Etiam et elementum tellus, eu mattis sapien. Aenean mauris nulla, euismod id imperdiet in, fringilla ut odio. Donec ut metus ullamcorper magna eleifend ultricies. Praesent suscipit, felis a congue dapibus, metus diam volutpat risus, ut suscipit mi diam at lorem. Nulla vel quam ut orci vestibulum porttitor vehicula eu nisi. Etiam malesuada molestie erat, sed lobortis nulla interdum vitae.
diff --git a/pelicanconf.py b/pelicanconf.py
@@ -21,17 +21,17 @@
 
 # Blogroll
 LINKS = (
-    ('Pelican', 'https://getpelican.com/'),
-    ('Python.org', 'https://www.python.org/'),
-    ('Jinja2', 'https://palletsprojects.com/p/jinja/'),
+    ('AMOLF', 'https://amolf.nl/'),
+    ('ARCNL', 'https://arcnl.nl/'),
+    ('Soft robotic matter', 'https://overvelde.com/'),
+    ('Springable', 'https://ducarme.github.io/springable/'),
 )
 
 # Social widget
 SOCIAL = (
-    ('Scopus', '#'),
-    ('ORCID', '#'),
-    ('Google Scholar', '#'),
-    ('Twitter', '#'),
+    ('Google Scholar', 'https://scholar.google.com/citations?user=rrctz-oAAAAJ'),
+    ('ORCID', 'https://orcid.org/0009-0002-7429-2803'),
+    ('Bluesky', 'https://bsky.app/profile/paulducarme.bsky.social'),
 )
 
 DEFAULT_PAGINATION = False
@@ -44,10 +44,13 @@
 DISPLAY_PAGES_ON_MENU = False
 DISPLAY_CATEGORIES_ON_MENU = False
 MENUITEMS = (
+    ('Research', '/'),
     ('Publications', '/category/publications.html'),
-    ('Teaching', '/category/teaching.html'),
+    #('Teaching', '/category/teaching.html'),
     ('Talks', '/category/talks.html'),
-    ('Projects', '/category/projects.html'),
-    ('Blog', '/blog.html'),
+    #('Projects', '/category/projects.html'),
+    #('Blog', '/blog.html'),
+    ('Photos', '/pages/photos.html'),
+    ('Bio', '/pages/bio.html'),
     ('Contact', '/pages/contact.html'),
 )
