Category Archives: Stress/Strain
Head FXP is a string that seems to be largely overlooked and I am surprised after seeing the results of the installation and testing!
|String Name||Category||Gauge||Ultimate Tensile Strength/Lbs||Knot Strength/Lbs||Country of Origin|
|Head FXP||Multifilament - Nylon||17||165.9||93.4||Japan|
Both the tensile strength and knot strength are exceptional and the graph shows that this string is very “elastic” which is a good thing for tennis racquet string but sometimes just not considered.
The area under the solid red lines is considered a stress-strain curve and indicates the “elasticity” of string by how close the lines fit from 0 to 50 three (3) times. A perfectly elastic material would be one line even though it went through three (3) cycles. What you see here is quite good and one of the reasons it is the winner!
A frequently asked question by our clients at the World Headquarters of Racquet Quest, LLC is “what is your favorite string?”
I am going to tell you what it is, and tell you why it is, and why, I believe, it should be your favorite string as well!
It should come as no surprise that natural gut is our favorite string! Well, of course, you say! It is probably everyones favorite but it is way too expensive for most recreational players! You are correct that natural gut is everyones “favorite” string, however, you may not be correct about it being too “expensive” for recreational players!
What follows is predicated on the belief that “performance” is the primary factor in selecting a string.
On the positive side:
- Natural gut plays better longer than any other material.
- Natural gut is more stable than most string materials.
- Natural gut is more forgiving (comfort) than most other materials.
- Natural gut is more eco-friendly than other materials.
- Natural gut is a good hybrid component.
On the not so positive side:
- Natural gut is expensive @ $70.00 to $75.00 (installed).
- Natural gut is more expensive than other materials.
- Making natural gut string is very labor intensive.
- Making high quality natural gut is limited to a “few” major manufacturers.
- Natural gut can be affected by moisture.
And, how do you quantify “plays better”, anyway? Some players are fine with string that has long since offered any performance! Some strings have a “play”life of a couple of hours! So, the player must decide on what is important.
But, if you ask us, natural gut is our favorite string!
Racquet Quest, LLC has for years been doing the extensive evaluation of racquets and string for the benefit of our client’s customization requirements.
Now we are making this evaluation “program” available to anyone that wants to dig deeper into the workings of the string in the racquet!
This is serious stuff and requires significant resources but it is worth it!
Please contact us of you would like to take advantage of our evaluation program!