supradjza80;1306112 said:
Your a masters ME student and are not familiar with metallurgy past some Wikipedia articles??:3d_frown:
If designed properly, a piece of steal can go through infinite load cycles without failure. Assuming Toyota knows what they are doing, which they do, and the safety factors involved there should be no issue with the amount of loading the chassis sees with the top off and actual yielding/stress fracture of the unit body.
If using other materials such as aluminum this is not true and at some point the material will fail no matter what the loading is (think air plane wings which is why aluminum wings are constantly inspected and have a set shelf life for the cyclical loadings they see). The higher the load applied the less cycles until failure.
to the moderators Im just going answer his comments with no harsh words and i will be calm.
I guess this will never end. :icon_bigg First of all I know about wikipedia is a bad source. I could not give out my password from my online library at school. thats why i looked at what I can find online. Second, Im not a masters student yet, im trying to.
You said above "if designed right". As an engineer your self, you should know that not every design is perfect. for example; blown head gasket, cracked rear subframe. There will always gonna be flaws on every design. Thats why engineers learns from that mistake and make improvements like the 2jz. And as a production made cars, its like any other production. I do not know about cars but they put car to the test before they start building it. Now, through production line, you can not test every single car that comes out of the line. From building of parts to assembly there will be some flaws. Thats why production cars look the same but inside they are not 100% all the same the way they were made. All Im just trying to say, probably the supra I got probably got one of those flaws.
I may not be a design engineer, but as my past experience of being a manufacturing engineer. I saw things that I never thought could happend. Thats why I take inputs from technicians that see those things every single day, put those inputs together to make a better design.
As for the age of material that im talking about. I am not talking about old age it gets brittle, No. When I said age of metal, meaning the age of technology it was made. Better technology, better process of making this things.
to the moderators, I just defending my self from getting insulted. i never said any harsh words this time. I know you guys are way smarter engineers than I am. The way I look at things is probably just different from you guys point of view. I am more of a practical type of person when it comes to this kind of things, I just consider things thats out there and be ready for unexpected.
Ok. so please I never meant to harm anybody. So please stop insulting me for being an engineer. I know I am dumb engineer to you guys but there are still some people out there that appreciates it. I think I already said everything that I have to say. ok :icon_bigg
