I’m interested in performing a impact analysis on sandwich composites & Laminated Composites.,
Pls let me know which software will help me in simulating these capabilities
That’s a tough one. You’ll need something like FiberSIM coupled with LS Dyna. It’s over $50,000 for the software licenses alone.
It would be far cheaper just to fire projectiles at test samples, and you’d get more accurate results.
I’m struggling to find properties of carbon composites that would mean they were useful for skis. I’m also looking for examples of carbon composites often used in skis.
Light weight and high strength, together with skis and ski poles providing ideally simple geometry for carbon fibre application.
I posted a question a few days ago about a Wilson BLX Fierce (FX), but nobody knew anything about it.
SInce then, I have heard of something called a ‘price-point’ racket, which I believe the Fierce BLX may be. Other examples probably include things like Head raptor, some Prince EXO3 hybrids and Babolat E-sense/XS/Pulsion.
I am worried that these rackets may not be what they claim to be. There must be some reason why the price is lower (although in some cases not by much!), is this because the material is cheaper (e.g. Graphite composite or even aluminium) when it claims to be full graphite, does not play well etc.?
Basically any views on this matter are welcome. I am on a budget and cannot dish out £100+ for a proper pro racket. Hence I need to know as much as possible about the rackets that ARE in my price range. Cheers
I would call things like some of those ‘mid-level’ frames. They aren’t your super-cheap frames, but they aren’t anything too special, either.
Basically, from Wilson, there are four basic models that would be considered ‘high-end’: Six-One, Pro, Tour, Blade. There are a variety of frames based off each of these. For example, there is the Blade Tour, and the Blade 98.
Then you have things like the BLX Pro Team FX. This is more of a marketing ploy than anything. People see a pro who uses a particular frame, but know they can’t really handle the actual frame the pro uses. So what does Wilson do? Make something that looks nearly identical, but with beginner to tweener specs instead. These frames tend to be more intermediate level. They aren’t spectacular in one area.
There are also some just straight-up beginner’s frames. These are the giant, light-weight ones. These actually tend to be higher in price, because many beginner’s believe that large and light is better (and it probably is for them). That, and they think that because that they paid $270 for their Wilson BLX Cierzo Two, that it will surely improve their game.
As for worrying that the frames aren’t ‘what they claim to be’, don’t worry, they are. That would be false advertising and lead to a lot of problems. If they say they are 100% graphite, they are.
Now, if you want to get a good deal on a quality frame, which seems the case, check out the sale sections from various online stores.
http://www.tennis-warehouse.com/saleracquets.html
This is an american-based site, but I do know they ship internationally. These are all frames that would have been $200 back in the day, but have since been replaced by a new line of frames. There are some very good deals in there on some great frames.
i am getting into hunting probably everything in california and im deciding which shotgun i should get my budget is about 400 and i cant decide between these two and also i was concidering a mossberg or a weatherby HELP!!!!
Hello,
the Remington is the best way to go.
highly reliable. and I have heard some bad things of the Benelli.
Here’s a rough idea
Suppose that there are a finite number of composites.
Consider C = {set of finite composite numbers}.
Let x be the largest of all composite numbers in set C.
Let k = a natural number, k >1.
Then let n = k * x.
n is composite, yet n is not in C.
Contradiction.
There are infinitely many composites.
What would be the better Road Bike. 1/ Cannondale Synapse Carbon 105 2011 with RS10 wheels,
2/Giant TCR Composite 2 2011 or 3/ Specialized Roubaix Carbon Comp SL2 2011.
They are all nice bikes and have the same components get the one that feels the best.
This sounds like a stupid question, but hear me out.
I know all about the different RCA cables like composite, component, digital coaxial, etc. But do the physical cables have different properties, or are they just color coded to make using them easier? In other words, if you plug in a set of red-green-blue component pins into the red-white-yellow ports of two devices being connected, as long as each cable color is in the same port color on both, would it transmit a composite signal?
Yes – there are differences, but it’s about the Coax wire, not the RCA connector.
Coax comes in different impedances. 50, 75, 110 and 300 ohm are common.
So that high-frequency video signals do not ‘bounce’ when hitting the TV electronics – all video inputs are designed to present a 75 ohm impedance.
So all video cables (Yellow or Red/Green/Blue) must be made with 75 ohm coax so the video signals do not see a ‘speed bump’ when entering or leaving the cable.
Audio cables can be made with any of the popular coax types.
UPPER FREQUENCY PROBLEM
For years we have had standard def. These video frequencies top out at about 4 Mhz for the color Red.
But HD video can go up to 35 Mhz. Many people thought they could use standard-def component cables on their new HDTV. And it appears to work. But there is a loss of fine focus, in-consistent colors, etc because the cable was not designed to handle HD frequencies.
Monster loved this because people would buy a $100 Monster cable designed for HD frequencies and people would brag how it looks better – but the old cable was a $25 standard def component set from Radio Shack.
So for HD video – you want a cable made with coax designed for HD video. This is often called "Bandwidth" and the numbers are 90-120 Mhz.
What? What about 35 mhz?
Video engineers have a rule: Every cable, connector, switch, etc., should be designed to handle 3-4 times the max frequency you expect to send down the wire.
So HD rated cables and switches often advertise a "Bandwidth" of 90 Mhz or more.
Hope this helps.
To be specific it look likes this: x * y = composite number. Are there many possible answers or just two numbers?
4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 60, 62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95, 96, 98, 99, 100, 102, 104, 105, 106, 108, 110, 111, 112, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 128, 129, 130, 132, 133, 134, 135, 136, 138, 140
they are the first few composite numbers so your gonna have a lot of possibilities 
I was thinking about buying a miken freak faspitch bat but I’m not sure if carbon fiber is better then composite
See me reply to your first post.
It works for fibreglass, reinforced concrete, but I believe most professionals use machinery and vacuum bagging or presses now for better quality control and performance
