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Engineers Don't You Think Vehicles Should Be Built With Stronger Frames? - Car Talk - Nairaland

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Engineers Don't You Think Vehicles Should Be Built With Stronger Frames? by ekerensima: 8:44am On Jun 09
Honestly I am tired of seeing cars and beautiful vehicles crumpled like tin cans when accidents occur. so engineers in the house, seeing that we have high powered engines and lighter composite materials, why are vehicles not made stronger. I don't think a car with two inch thick amour will have any problems in an accident( I know that there are other variables that come into play in these situations) what do you think?

Lalasticlala come and select your next amoured car ooo

marpol abeg come and take this to the promise land.
Re: Engineers Don't You Think Vehicles Should Be Built With Stronger Frames? by kingreign(m): 9:58am On Jun 09
When you have a car that does not crumple and absorb the speed and impact of the crash, it will most likely kill you or cause grave injuries.

Most old cars from 25 years ago do not have energy absorbing crumple zones and this resulted in high incidences of injuries and fatalities.

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Re: Engineers Don't You Think Vehicles Should Be Built With Stronger Frames? by ekerensima: 10:40pm On Jun 09
kingreign:
When you have a car that does not crumple and absorb the speed and impact of the crash, it will most likely kill you or cause grace injuries.

Most old cars from 25 years ago do not have energy absorbing crumple zones and this resulted in high incidences of injuries and fatalities.

Dame!! the car hits the instruction but the occupant's still moving. what else can we do about it?
Re: Engineers Don't You Think Vehicles Should Be Built With Stronger Frames? by kingreign(m): 2:41am On Jun 10
ekerensima:


Dame!! the car hits the instruction but the occupant's still moving. what else can we do about it?

You mean, the car hits an obstruction and stops but occupants still keeps moving?

Yes, if that's what you meant to write. Automobile safety has gone advanced. Now cars have pretensioned 3 point seat belts, collapsible steering columns and pedals, crash safety crumple zones in front, sides and rear to absorb the force of impact, and dissipate this force around the vehicle thus damaging the vehicle but saving the occupants.

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Re: Engineers Don't You Think Vehicles Should Be Built With Stronger Frames? by ekerensima: 6:09pm On Jun 10
kingreign:


You mean, the car hits an obstruction and stops but occupants still keeps moving?

Yes, if that's what you meant to write. Automobile safety has gone advanced. Now cars have pretensioned 3 point seat belts, collapsible steering columns and pedals, crash safety crumple zones in front, sides and rear to absorb the force of impact, and dissipate this force around the vehicle thus damaging the vehicle but saving the occupants.
yes. Exactlay what I meant, no wonder I dey see SUV's for upwards of $25,000 if it gat those features you mensioned above then they really worth the price. Wy major concern is with buses
Re: Engineers Don't You Think Vehicles Should Be Built With Stronger Frames? by Inception(m): 8:20pm On Jun 10
ekerensima:


Dame!! the car hits the instruction but the occupant's still moving. what else can we do about it?

It is a consequence of Newton's first law.

' An object will always remain at rest or in a state of uniform motion in a straight line unless a force is imposed on it.'

When a car hits a barrier or an obstacle at say 100km/h, that vehicle is decelerated from that speed to zero in a matter of milliseconds. The consequence is that every element on and in that vehicle will continue to move until they all hit a barrier themselves, including any occupant , luggage, even the door and boot if not properly closed will swing open in the direction the vehicle was impacted. The problem is not the stopping itself, but the time it takes to do that. , meaning that the forces any occupant would experience would be sometimes up to 5 times their weight , depending on the speed. Because of this, there must be some form of energy dissipation to , as much as possible slow down the speed of the vehicle and absorb and deflect the energy away from the occupants. This is achieved using high strength materials with adequate ductility(e.g high strength steels) to achieve this aim, together with how these materials and be configured to intelligently achieve this.

This is why wearing your seatbelt is very important, as it restrains the occupant adequately to prevent them from hitting any obstacle during such occurrence. This has improved tremendously with the advent of seatbelt pretensioners, dual stage airbags and the likes, and improvement is still going on. Remember the Presafe technology in Mercedes Benz vehicles?

One thing to also note here is that the energy required to be dissipated in an impact is a function of the square of the speed at which the vehicle was traveling. This is why someone would survive a 100km/h impact and another would die at 120km/h.

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Re: Engineers Don't You Think Vehicles Should Be Built With Stronger Frames? by ekerensima: 6:56am On Jun 11
Inception:


It is a consequence of Newton's first law.

' An object will always remain at rest or in a state of uniform motion in a straight line unless a force is imposed on it.'

When a car hits a barrier or an obstacle at say 100km/h, that vehicle is decelerated from that speed to zero in a matter of milliseconds. The consequence is that every element on and in that vehicle will continue to move until they all hit a barrier themselves, including any occupant , luggage, even the door and boot if not properly closed will swing open in the direction the vehicle was impacted. The problem is not the stopping itself, but the time it takes to do that. , meaning that the forces any occupant would experience would be sometimes up to 5 times their weight , depending on the speed. Because of this, there must be some form of energy dissipation to , as much as possible slow down the speed of the vehicle and absorb and deflect the energy away from the occupants. This is achieved using high strength materials with adequate ductility(e.g high strength steels) to achieve this aim, together with how these materials and be configured to intelligently achieve this.

This is why wearing your seatbelt is very important, as it restrains the occupant adequately to prevent them from hitting any obstacle during such occurrence. This has improved tremendously with the advent of seatbelt pretensioners, dual stage airbags and the likes, and improvement is still going on. Remember the Presafe technology in Mercedes Benz vehicles?

One thing to also note here is that the energy required to be dissipated in an impact is a function of the square of the speed at which the vehicle was traveling. This is why someone would survive a 100km/h impact and another would die at 120km/h.
thou art knowledgable in thy physics! Boss them go just teach us momentum, impuls and velocity time graph with out real life consequences, thank you sir. You will notice that accident at higher speeds would cause the compartment areas to become (unfortunately) part of the crumple zone. Thank God for engeneers like you a lot of lives will be safe.
Re: Engineers Don't You Think Vehicles Should Be Built With Stronger Frames? by Kelvin30286063(m): 8:36am On Jun 11
Everyone up there said the right things but on a different note, I'll say the stronger the panels, the heavier the car and the slower it comes.

My own question is a little different. I know cars are equipped with airbags at almost everywhere but why not interior foams to support the airbags. Say all the door panels are cover with foam like leathers.

1 Like

Re: Engineers Don't You Think Vehicles Should Be Built With Stronger Frames? by ekerensima: 6:29pm On Jun 11
Kelvin30286063:
Everyone up there said the right things but on a different note, I'll say the stronger the panels, the heavier the car and the slower it comes.

My own question is a little different. I know cars are equipped with airbags at almost everywhere but why not interior foams to support the airbags. Say all the door panels are cover with foam like leathers.
bro imagine jumping onto your bead from a highrise building
Re: Engineers Don't You Think Vehicles Should Be Built With Stronger Frames? by BOUNTYDOG(m): 11:08pm On Jun 11
Kelvin30286063:
Everyone up there said the right things but on a different note, I'll say the stronger the panels, the heavier the car and the slower it comes.

My own question is a little different. I know cars are equipped with airbags at almost everywhere but why not interior foams to support the airbags. Say all the door panels are cover with foam like leathers.

Did u just mention Mercedes Benz?
Re: Engineers Don't You Think Vehicles Should Be Built With Stronger Frames? by Eldemmi(m): 7:21am On Jun 12
Inception:


It is a consequence of Newton's first law.

' An object will always remain at rest or in a state of uniform motion in a straight line unless a force is imposed on it.'

When a car hits a barrier or an obstacle at say 100km/h, that vehicle is decelerated from that speed to zero in a matter of milliseconds. The consequence is that every element on and in that vehicle will continue to move until they all hit a barrier themselves, including any occupant , luggage, even the door and boot if not properly closed will swing open in the direction the vehicle was impacted. The problem is not the stopping itself, but the time it takes to do that. , meaning that the forces any occupant would experience would be sometimes up to 5 times their weight , depending on the speed. Because of this, there must be some form of energy dissipation to , as much as possible slow down the speed of the vehicle and absorb and deflect the energy away from the occupants. This is achieved using high strength materials with adequate ductility(e.g high strength steels) to achieve this aim, together with how these materials and be configured to intelligently achieve this.

This is why wearing your seatbelt is very important, as it restrains the occupant adequately to prevent them from hitting any obstacle during such occurrence. This has improved tremendously with the advent of seatbelt pretensioners, dual stage airbags and the likes, and improvement is still going on. Remember the Presafe technology in Mercedes Benz vehicles?

One thing to also note here is that the energy required to be dissipated in an impact is a function of the square of the speed at which the vehicle was traveling. This is why someone would survive a 100km/h impact and another would die at 120km/h.

NICE write up and educating.

I always remind myself that 100km/h is my speed limit in Nigeria no matter how good the road may be .
Re: Engineers Don't You Think Vehicles Should Be Built With Stronger Frames? by ekerensima: 5:15pm On Jun 12
Eldemmi:


NICE write up and educating.

I always remind myself that 100km/h is my speed limit in Nigeria no matter how good the road may be .
. better safe than sorry
Re: Engineers Don't You Think Vehicles Should Be Built With Stronger Frames? by sultaan(m): 7:50pm On Jun 12
If you are going to run into a wall, is it better to have a pillow in front of you or a block of metal. The block of metal will not have any damage on it but you will feel the impact, but the pillow will be deformed while you are undamaged.


The focus is on your safety, cars can be replaced easily

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Re: Engineers Don't You Think Vehicles Should Be Built With Stronger Frames? by ekerensima: 8:36pm On Jun 12
sultaan:
If you are going to run into a wall, is it better to have a pillow in front of you or a block of metal. The block of metal will not have any damage on it but you will feel the impact, but the pillow will be deformed while you are undamaged.


The focus is on your safety, cars can be replaced easily

nor mind me, too much war movies dey make me dey think of only amour
Re: Engineers Don't You Think Vehicles Should Be Built With Stronger Frames? by kingreign(m): 9:17pm On Jun 12
ekerensima:


nor mind me, too much war movies dey make me dey think of only amour
Why are you bearing Nsima Ekere? Are you related to him in anyway pls?
Re: Engineers Don't You Think Vehicles Should Be Built With Stronger Frames? by ekerensima: 6:25am On Jun 13
kingreign:

Why are you bearing Nsima Ekere? Are you related to him in anyway pls?
the thing shock me ooo my name Na Ekere-Uwak Nsima

1 Like

Re: Engineers Don't You Think Vehicles Should Be Built With Stronger Frames? by ITbomb(m): 10:49am On Jun 14
Stronger panel means heavier vehicles and consequently more energy needed to move and more fuel spent
Engineers are looking towards fuel efficient vehicles

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Re: Engineers Don't You Think Vehicles Should Be Built With Stronger Frames? by ekerensima: 8:05pm On Jun 14
ITbomb:
Stronger panel means heavier vehicles and consequently more energy needed to move and more fuel spent
Engineers are looking towards fuel efficient vehicles
we now have stronger materials titanium, carbon fiber and other composite materials. But I assure you, they are dame expensive

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Re: Engineers Don't You Think Vehicles Should Be Built With Stronger Frames? by uuzba(m): 8:54pm On Jun 14
ekerensima:
Honestly I am tired of seeing cars and beautiful vehicles crumpled like tin cans when accidents occur. so engineers in the house, seeing that we have high powered engines and lighter composite materials, why are vehicles not made stronger. I don't think a car with two inch thick amour will have any problems in an accident( I know that there are other variables that come into play in these situations) what do you think?

Lalasticlala come and select your next amoured car ooo

marpol abeg come and take this to the promise land.
That was olden days car design. And people died anyhow at the expense of strong car body. Car is your slave, not your master. You should remain alive, whilst the car dies instead. Hence the shift over to softer body work with crumple zones.
Below is a clip from Fifth Gear, showing a uselessly STRONG small car with full explanation of all the demerits.

https://www.youtube.com/watch?v=mnI-LiKCtuE

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Re: Engineers Don't You Think Vehicles Should Be Built With Stronger Frames? by uuzba(m): 8:57pm On Jun 14
ekerensima:
we now have stronger materials titanium, carbon fiber and other composite materials. But I assurd you, they are dame expesive
F1 cars, Bughatti and other super cars use these materials, but they still design the car to crumple in accidents instead and save the occupants' lives in impact.
I guess this Audi is more on the consumer side with multiple body materials.
But Audi no cheap na! Especially these new ones.

https://www.youtube.com/watch?v=ZuJMtW3xeNQ
Re: Engineers Don't You Think Vehicles Should Be Built With Stronger Frames? by ekerensima: 8:59pm On Jun 14
uuzba:

That was olden days car design. And people died anyhow at the expense of strong car body. Car is your slave, not your master. You should remain alive, whilst the car dies instead. Hence the shift over to softer body work with crumple zones.
Below is a clip from Fifth Gear, showing a uselessly STRONG small car with full explanation of all the demerits.

https://www.youtube.com/watch?v=mnI-LiKCtuE
Ayam so checking this out! thank you

1 Like

Re: Engineers Don't You Think Vehicles Should Be Built With Stronger Frames? by ekerensima: 9:07pm On Jun 14
uuzba:

F1 cars, Bughatti and other super cars use these materials, but they still design the car to crumple in accidents instead and save the occupants' lives in impact.
I guess this Audi is more on the consumer side with multiple body materials.
But Audi no cheap na! Especially these new ones.

https://www.youtube.com/watch?v=ZuJMtW3xeNQ

Na maximum respect infact pipu suppose dey worship engineers. tiri gbosa!!

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Re: Engineers Don't You Think Vehicles Should Be Built With Stronger Frames? by Originalsly: 2:29pm On Jun 15
Nice video husband!
@topic... guess all was explained! Many people still believe the heavier... stronger ... bigger cars were safer. I see them a lot on the road.... and the older they be ... like those from the 60's and before....the stronger my fear become. They absorb no impact .... and when the waves come through .... if you be driver... well good luck k in them taking the steering pole out of your chest.... if you be front seat passenger.... before you can hit the road... you will be already dead... throat slashed from the windscreen glass. Backseat passengers will follow the same path... not likely to have throats slashed.... but meet their demise as the engingbrushes into the passenger compartment area. I fear those cars. Stronger... lighter materials yes... but not good for business... too costly.

This one.... a regular car lost control and ran into it..... if the driver was in the driver seat.... RIP...something like that!

Re: Engineers Don't You Think Vehicles Should Be Built With Stronger Frames? by ekerensima: 11:26am On Jun 16
Originalsly:
Nice video husband!
@topic... guess all was explained! Many people still believe the heavier... stronger ... bigger cars were safer. I see them a lot on the road.... and the older they be ... like those from the 60's and before....the stronger my fear become. They absorb no impact .... and when the waves come through .... if you be driver... well good luck k in them taking the steering pole out of your chest.... if you be front seat passenger.... before you can hit the road... you will be already dead... throat slashed from the windscreen glass. Backseat passengers will follow the same path... not likely to have throats slashed.... but meet their demise as the engingbrushes into the passenger compartment area. I fear those cars. Stronger... lighter materials yes... but not good for business... too costly.

This one.... a regular car lost control and ran into it..... if the driver was in the driver seat.... RIP...something like that!

the force simply flows through everything in the car! that drivers neck might have snapped by the impact. was reading a novel recently survivers bailed out of a sinking battle ship, they were fired upon by enemy shells, now here's the cracker water Doesn't compress and those close enough were kill by the wake of the shell

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