Ilyass retweeted
the fast16 malware was almost certainly targeting spherical implosion simulations.
left: unmodified LS-DYNA 970
right: LS-DYNA 970 modified with the relevant portions of fast16.sys
both running a spherical implosion deck
Ilyass retweeted
Last August, I was invited to keynote (no honorarium) at a major event organized by Polytechnique Montréal—you know, the campus that no longer allows meat to be sold.
I received a note yesterday saying they’ve pivoted and will invite someone else to speak.
Here's the deal. Unless you’re left-of-centre or aligned with the Liberals, you risk being sidelined on university campuses in Canada. Full stop.
That’s the reality—and Canadians should know it.
finally running local LLM setup: RTX 3090 x Qwen3.5 27B x 82k context x 2 parallel slots x hermes agent for knowledge base/research/admin.
one gpu, one linux box, no subscription. slower than cloud, but it works and solves privacy concerns.
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We are curious to hear what others are seeing on the degradation side, especially for thermoplastic composites in service conditions.
Full publication: sciencedirect.com/science/ar…
Learn more: ilylabs.com/materials%20scie…
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Key finding: matrix chemistry matters. PPS, PEI, and PEEK degrade differently, different chemical signatures, different surface damage patterns.
CF/PPS shows increased cross-linking and brittleness. CF/PEI and CF/PEEK undergo chain-scission under the same conditions.
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We exposed samples to UV and condensation cycling, then analyzed damage development with SEM, FTIR, and DSC.
Three techniques that together tell the full degradation story: morphology, chemistry, and thermal transitions.
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🧵 How do aerospace thermoplastic composites age?
CF/PPS, CF/PEI, and CF/PEEK are increasingly used in aircraft structures. They are lighter than metal, but UV and moisture strongly affects them. We recently focused on longterm exposure to lower altitudes (think zeppelins).
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A strain gauge tells you what happened at one point.
DIC shows you the whole field.
Failure mechanics rarely happen where you expect them.
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Ilyass retweeted
Got annoyed by Tailscale requiring 3rd party accounts, so created Nostr VPN.
It signals over nostr relays and creates a wireguard / boringtun network. Builds for Macos and Linux. Using it between my Macs, but haven't tested extensively yet.
A lot of our experimental work uses Digital Image Correlation.
Most materials we study are heterogeneous. Composites, 3D printed parts, biological tissues. Properties vary locally.
DIC makes that variation visible. That is why it works so well for us.
doi.org/10.6084/m9.figshare.…
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Been meaning to post more about what we're working on in the lab.
Upcoming thread series on our main projects:
Additive manufacturing: understanding how bead bonding develops in MEAM
Thermoplastic composites for the aerospace
Heterogeneous materials characterization methods
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In theory, meshtastic sounds like a great idea.
In practice, I don't know if it is because although I can see nodes, there's no activity at all in my area, so who knows.
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This work also showed that high performance thermoplastic composites prefered in the aerospace industry might not be the best choice for an airship, especially when cost and ageing are also considered.
Read the full paper here: doi.org/10.1016/j.composites…
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These findings provide crucial insights into material behavior under prolonged environmental exposure, aiding in the development of robust composite solutions for aerospace applications like the LCA60T.
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Our new paper, "Degradation mechanisms of CF/PPS, CF/PEI, and CF/PEEK under combined UV radiation and condensation," details the distinct degradation mechanisms observed: CF/PPS showed predominant cross-linking, while CF/PEI and CF/PEEK experienced primary chain scission.
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Our research addresses how to determine the performance ageing of such materials for zeppelin usage. We investigated the effects of combined UV radiation and condensation on carbon fibre-reinforced thermoplastic composites.
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Flying Whales, a Franco-Canadian company, is developing the LCA60T, a rigid airship designed for heavy cargo transport. Ensuring the durability of its composite structures under low-altitude environmental conditions is paramount for operational success.
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The long-term performance and ageing of high-performance thermoplastic composites are critical for their application in demanding environments, such as the innovative structures of next-generation airships.
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Rugged 3D Printer for Field Deployment and In-Flight Manufacturing - 3D Printing Industry share.google/rAiDfPKWffoMwNI…
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