2007-11-11 15:15:21 · 21 answers · asked by Anonymous in Science & Mathematics ➔ Weather
an moderately overinflated tyre would not burst, it will cause poor grip and a stiff ride it would take a deliberate act to blow a tyre by overinflation, The main cause of blow-outs (as opposed to puntures) is drastic under-inflation, what happens is the tyre is flattened more than it is designed to be, and as the tyre rotates, the flat area is rotated around the tyre as the wheel turns (as obviously it is only flat where it is in contact with the road) and it is this rapid flexing which increases the faster the wheels turn, that causes the tyre to heat up beyond it's design capabilities and it starts to break down resulting in a blowout, obviously, the warmer the weather, the chance of the tyre heating to beyond it's capability is increased.
2007-11-13 20:36:44 · answer #1 · answered by Anonymous · 0⤊ 0⤋
There are many factors.
They all have to do with the high air pressure inside the tire carcass.
- Condition of the sidewalls
If the tires are old, the walls may be cracked and perished. The steel bands in the side walls give strength but the rubber is still prone to perishing over time. Even correctly inflated, the tire might suffer catastrophic failure with a sidewall blowout.
- Condition of the tread
If the tires are on the front or the tires have not been inflated to the correct pressure (over-inflation or under-inflation) then the tread can be rubbed away more quickly leading to thin spots. For front wheels, poor tracking or incorrect camber or castor can lead to uneven wear producing weak spots.
- Condition of the tire
If the tire has previously had a puncture that was repaired rather than replaced, there may develop a weakness near to the patch in a tubeless tire. Weaknesses can occur from water (from a rainy road) building up pressure inside the patch and stretching it almost to breaking. The heat build-up inside the tire will find it easier to escape at a weak point - think tire fatigue, like metal fatigue.
The heat build up inside the tire will depend on the length of the journey, the outside air temperature and the length of tie that the tire has been running. As it makes contact with the road, the tire requires friction to move the car. Friction causes heat and this is transferred inside the tire. The heat of the road will also be transferred to the tire which has a black body and therefore absorbs heat rather than reflect it.
The air pressure inside the tire will rise and, for the reasons given above, the integrity of the tire may be compromised.
2007-11-13 13:16:06 · answer #2 · answered by Rob K 6 · 0⤊ 0⤋
Tires are especially likely to burst durring the interim between cold weather and warm weather. If the tires have been inflated in cold months the air inside can expand in warm weather, thus causing the tire to burst. The friction created on a long trip does not help the situation.
2007-11-12 01:36:34 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Over or under inflation can be a contributing factor.
Hot heat from the road surface is another.
When you are driving in an area where you begin to see tire fragments on the road, it is a sign (signal) that you need to slow down because your tires are under the same threat of bursting.
Higher speeds can cause failure when the road is hotter than normal.
2007-11-13 04:28:54 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Air expands with increasing heat.
Long high speed driving creates heat in the tyre which is further increased by the warm ambient temperature. This heat expands the air in the tyre, increasing the pressure inside it which can cause a weakened, worn, poorly seated and/or already over inflated tyre to blow.
2007-11-13 06:59:59 · answer #5 · answered by 203 7 · 1⤊ 0⤋
A number of things!! Over inflation,Under inflation Would be two possibles without outside assistance from foreign objects bursting the tyre.
2007-11-13 07:47:12 · answer #6 · answered by Crusha03 6 · 0⤊ 0⤋
All the answers have some merit, If the tyre was on the front, faulty wheel tracking can cause the tyre to scrub and can generate heat, but most likely to be caused by incorrect inflation
2007-11-13 09:26:03 · answer #7 · answered by John L 5 · 0⤊ 0⤋
Tyres or Tires depending on which country your in all need to have a lower air pressure in them as they increase on pressure from the thermal build up, this over inflation can cause Tyres / Tires to wear quicker and this wear can lead to a blow out.
The extra pressure build up is acting on the tyre wall which is why your tyres / tires blow from the walls rather than the tread.
You can shed your tread if your tyres/tires are retreads that have been over inflated and are excessively hot.
2007-11-13 07:59:05 · answer #8 · answered by cheek_of_it_all 5 · 2⤊ 0⤋
sometomes you can get lumps appear on the tyre wall this is where the outer layer of rubber has come away from the lining(sometimes caused by hitting the kirb excessivly) weakening the wall, as the tire heats the rubber softens and if you are unlucky it will burst
2007-11-13 22:22:26 · answer #9 · answered by albion_boy123 2 · 0⤊ 0⤋
Replace car tyres every two years whether they look warn or not.
If you have a puncture discard the tyre and replace with a new one.
Of course this all costs money but it's worth it just to stay alive.
2007-11-13 21:34:29 · answer #10 · answered by Anonymous · 0⤊ 0⤋