Fusibles fluidiques – Exploiter la ‘Défaillance programmée’ pour assurer la santé du système

Fluidic fuses are the latest development in the programmed failure sector. These devices perform a task similar to the fuses in your home. When blown due to pressure, they can be rebonded and reset. In this way, they prevent damage from over-pressurization and provide a reusable option to the market. Here’s what you need to know.

Défaillance programmée

The concept of programmed failure has intrigued engineers for decades. Fuses are a perfect example of programmed failure. They flip when a certain amount of current or short is detected. Their failure prevents greater damage to the electrical system. In this way, engineers can transform failure from a limitation into an advantage.

Programmed failures allow engineers to determine stress points and initiate automatic processes following their breach. The key to programmed failure is having a strong understanding of the device’s internal components and their exact failure steps.

Étude sur les fusibles fluidiques à défaillance programmée

A new study published in Cell Reports Physical Science called “Défaillance programmable dans les dispositifs fluidiques à base de feuilles thermoscellables“¹  introduces the concept of fluidic fuses. These fuses work on pressure rather than current. If a pipe with one of these devices receives too much pressure, the fluidic fuse will pop based on predetermined thresholds, allowing for multiple use-case scenarios.

Fusibles fluidiques à base de feuilles

The core of the research is a new type of sheet-based fluidic fuse. These fuses utilize thin, flexible sheets of material specially bonded together to form an internal network. This network has fluid that will cause the fuse to separate at certain areas if the pressure exceeds the preset parameters.

Source – Université RICE

Comment les fusibles fluidiques échouent

The fluidic fuses introduced by engineers in this study leverage a multi-bond approach. Each seal has a separate strength and pressure setting at which the bond will break. This setup allows the system to provide multiple safety indicators and initiate a multi-step process to prevent further failure based on current pressure conditions.

Trois régimes de défaillance

The researchers identified three key failure phases linked to the thermal bonding process used in fabricating these fluidic fuses. The first phase occurs when bond strength increases as the bonding temperature rises. In the second phase, a plateau forms where the material itself dictates cohesive failure. The final phase involves overheating during fabrication, which weakens the material’s integrity and lowers its failure threshold.

L’adhérence fait référence à la manière dont les fusibles fluidiques sont liés entre eux. Plus la méthode d’adhérence est forte, plus il faut de pression pour déclencher le fusible. Les ingénieurs ont également noté que la forme de chaque fusible fluidique influence sa capacité à supporter la pression. Les conceptions plus complexes étaient plus susceptibles de se déclencher à une pression plus basse, permettant un réglage précis.

La dernière préoccupation était la performance d’impact. L’étude s’est concentrée sur un seul système de matériau et a examiné comment différentes températures de liaison affectent le comportement de défaillance. Plutôt que de tester plusieurs matériaux, la recherche s’est axée sur l’optimisation des conditions de liaison thermique pour contrôler la défaillance programmée. De plus, le matériau devait être capable de supporter les variations de température.

Test du fusible fluidique à défaillance programmée

The group tested their theory by creating multiple fluidic fuses. These devices underweight a variety of trials. Burst tests were used to find the exact pressure failure readings. Additionally, the adhesion underwent a series of T-peel tests to evaluate its strength.

Résultats du test du fusible fluidique à défaillance programmée

The test results showed the fluidic fuses could limit damage due to over-pressurization in multiple systems. Additionally, the team noted the ability to initiate task sequences from a single pressure input.

For example, imagine a safety system opening switching inputs, notifying safety personnel, and opening exhaust valves automatically because overpressurization was detected. This type of sequencing is only the tip of the iceberg.

Avantages du fusible fluidique à défaillance programmée

This research could lead to a plethora of benefits across multiple industries. For example, the soft robotics sector could leverage this tech to make non-compliant robots safer and smarter.

Cadre du fusible fluidique à défaillance programmée

Another benefit of this study is that it provides a framework for further developments regarding fluidic fuses. These devices could be used to ensure pressurized systems are safer than ever. They are lightweight, affordable, and reusable. Additionally, they can be easily rebonded with minimal costs.

Déclencheur

Another huge draw to fluidic fuses is their capability to act as a single input switch. Already, engineers have come up with multiple scenarios in which a fluid fuse can be strategically placed to sequence multiple tasks within a device or across a range of devices.

Avenir des fusibles fluidiques

In the future, fluidic fuses could be combined with IoT (Internet of Things) and AIoT technologies to provide real-time data to logistics firms and manufacturers. These systems could enable safer and more accurate pressure monitoring without driving up costs. As such, fluidic fuses will become smart, increasing the ability to communicate via the internet to larger systems in real time.

Chercheurs du fusible fluidique à défaillance programmée

The fluidic fuse study was put forth by Rice researchers Sofia Urbina,  Adam Broshkevitch, and  Daniel J. Preston. Now, the researchers will seek out more applications and improvements to their fluidic fuses.

Entreprises pouvant bénéficier de l’étude sur les fusibles fluidiques à défaillance programmée

Several manufacturers could see major benefits from this study. For one, robotics firms could use this study to make soft robots safer and more agile. Leading soft robotic technology leaders are constantly on the lookout for breakthroughs that will improve their ROI and product capabilities. Here’s one company leading the soft robotics revolution.

Teradyne

Teradyne (TER ) entered the market in 1960 and has a main headquarters in MA. The Company was founded by Alexander V. d’Arbeloff and Nicholas DeWolf to provide reliable and accurate automatic test systems. Today, the company offers a wide range of testing systems, robotics, software, and wireless options.

Teradyne est un leader dans la robotique souple. Elle a démontré un esprit pionnier avec ses produits de bras robotisés. L’utilisation des fusibles fluidiques pourrait aider à améliorer cette offre ainsi qu’une longue liste d’autres performances et capacités de produits.

Actuellement, TER a une capitalisation boursière de 20,2 milliards de dollars. Le positionnement de l’entreprise et ses efforts innovants font de cette action un solide « hold » pour ceux qui recherchent une option de robotique établie.

Les fusibles fluidiques à défaillance programmée amélioreront la sécurité

It would be hard to imagine a world without electric fuses. Devices would be blowing up regularly due to shorts and other issues. The same scenario goes for pressurized systems. The better the programmed failures safety mechanisms, the better it is for everyone. As such, you need to commend these engineers on opening the door for new levels of safety and beyond.

Découvrez d’autres percées scientifiques passionnantes dès maintenant.

Référence de l’étude :

^{1. Preston, D. J., Urbina, S., & Broshkevitch, A. (2025). Défaillance programmable dans les dispositifs fluidiques à base de feuilles thermoscellables. Cell Reports Physical Science. Publication en ligne anticipée. https://doi.org/10.1016/j.xcrp.2025.100123}