BMXER Posted May 30, 2012 Posted May 30, 2012 (edited) On second thoughts How did a cracked frame end up with an image of a guy hanging out of his shorts?? Anyway, Mr Prez to shame- the Spear Edited May 30, 2012 by BMXER
Brett Posted May 30, 2012 Posted May 30, 2012 Snap...crackle...pop! The stress intensity factor is estimated for a circular crack associated with a spherical particle subjected to thermoelastic stress field. It is shown that the stress intensity factor is a function of particle size, elastic and fracture properties of the two phases and preexisting crack length. Spontaneous matrix cracking will occur when the particle size exceeds critical value Dc. Close agreement between calculated and measured value for Dc is obtained. The model is applicable to all particulate composites where there is volume increase of a particle induced either by phase transformation or thermal expansion mismatch (αm >αp). The results of the present analysis fit very well the observations made on spontaneouscracking of a single phase materials possessing thermal expansion anisotropy or two phase materials possessing thermal expansion mismatch. uh, yeah totally.
RockCoach Posted May 31, 2012 Posted May 31, 2012 Snap...crackle...pop! The stress intensity factor is estimated for a circular crack associated with a spherical particle subjected to thermoelastic stress field. It is shown that the stress intensity factor is a function of particle size, elastic and fracture properties of the two phases and preexisting crack length. Spontaneous matrix cracking will occur when the particle size exceeds critical value Dc. Close agreement between calculated and measured value for Dc is obtained. The model is applicable to all particulate composites where there is volume increase of a particle induced either by phase transformation or thermal expansion mismatch (αm >αp). The results of the present analysis fit very well the observations made on spontaneouscracking of a single phase materials possessing thermal expansion anisotropy or two phase materials possessing thermal expansion mismatch. I know what you mean. That always happens when you build a frame out of rice crispies.
Grebel Posted May 31, 2012 Posted May 31, 2012 How did a cracked frame end up with an image of a guy hanging out of his shorts?? This be the hub..... Nothing stays on topic neither does it stay relevant for very long.... The first lesson is free. No need to thank
Kranswurm Posted May 31, 2012 Posted May 31, 2012 I know what you mean. That always happens when you build a frame out of rice crispies. Pleased my bikes are not plastic.Got a nice new road bike for my birthday and the seatpost is carbon FSAI *** myself everytime I loosen or tighten it
jimmy hardtail Posted May 31, 2012 Posted May 31, 2012 When working with carbon bits the most important tool is a...torque wrench! Don't just swing on the allen keys like a monkey or you will cry sooner or later.
Kranswurm Posted May 31, 2012 Posted May 31, 2012 When working with carbon bits the most important tool is a...torque wrench! Don't just swing on the allen keys like a monkey or you will cry sooner or later. Yeah I know.I am pretty good at judging tightness but I am buying one just in caseI am amazed at the difference in prices LBS here sells a PRO for 1.2KI just chokedI can get one in RSA for R550
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