Chemically west epoxy and hardeners are the same as Seahawks, ie different label same product. If one has the AHEW, you can use with "any" other...
I'm referring to the amine hydrogen equivalent weight, ie used for calculating the mix ratio of Epoxy to hardener, tks
Anyone has this info, tks
Thanks Rx, 71 MPa strength,
600 KPa, tks
Point sustained load but not puncture, Normal to panel. Tks
Styrofoam has too low a Shear value to be any good with 1000gsm of Skins, but say if we had a surfboard and 200gsm Skins then it works... Regards...
Guess if we plot a graph of increasing loads, the defection will be small then show an infection point where the rate of defection increases more...
Thanks RX, 1Msq, the rest standard, 72GPa modulus at 55%fiber/45%resin = 40GPa?
The fiberglass is triaxial. (omnidirectional) The loading is at the center. Shear modulus 8MPa. Let's assume failure along the bond-line will not...
1Msq panel with 40mm core (0.5 MPa shear) and 1200gsm fiberglass skins. What's the failure mode, the skins or the core? and loading? tks
The way I see it, as speed goes from single digit numbers upwind to double digit numbers downwind, the required keel area to maintain "normal"...
Yes lifting a daggerboard type keel, vastly improves performance, drag goes down! Also, broaching is really, really slow!
When epoxy is cured at room-temp, after the initial reaction a lot of cross-linking is left undone, and for the sake of argument, lets say 50% is...
Please a little clarification, 2 stage post cure means: An initial room temp cure, then a post cure and then a second post cure? Sorry lack of...
In general epoxies have about a maximum 5 day post cure window, no? Further the piece needs to be supported, because it becomes dimensionally...
Anyone has any experience with using Imidazole to cure (catalyze) epoxy, I've made a carbon mast and foils using it. Seems like a good candidate...
