By Jobst Brandt
Jobst Brandt is an engineer who has been a specialist to the bicycle for a few years, having been serious about the construction of Avocet's line of highway tires, between different items. those that have corresponded with him or learn his posts on rec.bicycling be aware of him as an opinionated, possible gruff fellow who doesn't undergo fools calmly. rather a reputation.
But what Jobst is maybe most sensible identified for is that this e-book, The Bicycle Wheel. In it, he demolishes myths, and offers genuine engineering info to help his contentions approximately bicycle wheels fabrics and building. He tells you why butted spokes are larger and longer lasting than directly gauge spokes, and why tying and soldering spokes doesn't make a wheel any greater (and why it used to be still an invaluable factor for music racers to do). He explains why radial spoking doesn't particularly make for a rougher journey, as a few declare, and he supplies genuine figures on elongation and pressure to again up his claims And he teaches you ways to construct sturdy bicycle wheels, too.
This is a e-book for any severe bicycle rider. in the event you decide to construct your individual wheels, Brandt will educate you to that. if you purchase your wheels, Brandt will train you to spec and hold them. And if you're easily drawn to larger realizing the functionality and physics of bicycle wheels, he'll train you that besides. now not a foul deal for one small quantity.
Read or Download The Bicycle Wheel (3rd Edition) PDF
Best physics books
Physico-Chemistry of Solid-Gas Interfaces
Basic straight forward proof and theoretical instruments for the translation and version improvement of solid-gas interactions are first offered during this paintings. Chemical, actual and electrochemical points are offered from a phenomenological, thermodynamic and kinetic perspective. The theoretical facets of electric houses at the floor of an outstanding also are coated to supply larger accessibility for people with a physico-chemical heritage.
Problems for Physics Students: With Hints and Answers
This booklet is a suite of a few four hundred physics difficulties, with tricks on their ideas, and solutions. The physics lined encompasses all parts reviews by means of final-year (advanced point) scholars in colleges and excessive colleges. the writer has focused on featuring fascinating (and to a point strange) difficulties which are solved utilizing the actual ideas in most cases taught in complicated college classes.
- The Fermi surface; its concept, determination, and use in the physics of metals
- Vibration of Mindlin plates: programming the p-version Ritz Method
- Thermo-Electric Action with Dual Conduction of Electricity
- New Strategies of Diode Laser Absorption Sensors
- Evolution, Money, War, and Computers: Non-Traditional Applications of Computational Statistical Physics
Extra info for The Bicycle Wheel (3rd Edition)
Example text
31 32 WHEEL FAILURE Spokes that break during sprints or hard climbing all had fatigue cracks and were near failure. Failures from excessive pedaling force are practically impossible, because no cyclist is strong enough to produce the torque required. To receive breaking tension, a spoke must be pulled to one side by an obstruction. Torque will not do it. Such side loads more often break nipples than spokes. Spoke fatigue is caused almost exclusively by the radial load from the weight of the bicycle and rider.
29 30 WHEEL FAILURE Figure 14. Stress vs. strain curve METAL FATIGUE Metals suffer from fatigue, but unlike a fatigued human, metal does not recover with rest. The fatigue limit is how often the metal can be stretched or bent back and forth in the elastic stress zone before it develops a crack and breaks. For most applications fatigue life is measured in millions of cycles. The closer a cyclic stress is to the elastic limit (the boundary between elastic and plastic zones) the sooner the material will break.
The hardness and insulation reduce brake efficiency because brake pads become hotter than they would against bare aluminum. Anodized rims are also weaker because the hard oxide is brittle. Surface cracks in the brittle surface that occur from high stress at spoke holes can propagate into the metal and cause spoke break outs. Such failures are relatively common in hard anodized rims. The reduction in fatigue life for anodized aluminum is documented in scientific publications by the aircraft industry among others.