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Message: <blockquote data-quote="whatdamn" data-source="post: 2522961" data-attributes="member: 5381">starscream,i'm actually a 4th year mechanical engineering student. i can't disclose the details of my study because it's considered 'monash intellectual property' but i can give you the gist of it though.as far as what you said, "wira cross member as a cheap set up by using thicker mild steel, bended & weld rather simply", you have the wrong mentality because it is really difficult to produce a CAD for complex stamped sheet metal like those you find on lower arms and such and not just on our protons but also other major manufacturers as well. the evo LCA is not steel and is in fact cast aluminum alloy (how many % aluminum i have no idea). same as the subaru impreza wrx STi's. both offer reasonable amounts of durability however the evo LCA is definitely lighter in comparison to the mild steel variant. how much load can the both of them take? we (I) won't know for sure unless someone can post their finite element analysis (FEA) or ADAMS simulation results here...which i doubt anyone has access or will post because it's property to those respective companies.a representative engineer from proton came 3 weeks ago to give the students some insight to what engineering has taken place in proton since the waja phase and it's quite impressive really. they have been doing FEA for different load cases and also shape optimization to reduce 'hot-spots' (ie. areas with high concentration of loads) whereby they add material to those hot-spots and reduce material at other less affected spots and run their simulations till they get an agreed upon result.one funny/interesting FEA performed was a cabriolet version of the satria neo that was toy'd around by proton's engineers. but yeah, they are doing work contrary to popular belief.i suggest to all that we should learn the basics before intending on reinventing the wheel. keep things simple first then once you can't go any further should you only attempt to fabricate/design new components for your ride. :)</blockquote>

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