Comments on: Sustainable Materials: indispensable, impartial popular engineering book on the future of our built and made world http://boingboing.net/2011/11/17/sustainable-materials.html Brain candy for Happy Mutants Thu, 23 May 2013 23:23:00 +0000 hourly 1 http://wordpress.org/?v=3.4.1 By: screwt http://boingboing.net/2011/11/17/sustainable-materials.html#comment-1272761 screwt Thu, 17 Nov 2011 17:21:00 +0000 http://boingboing.net/?p=129898#comment-1272761 Cost. The following (2yo, but I don't think things have changed much in the mean time) graph shows comparison of costs for carbon fibre vs steel in car manufacture. Note the cost shown is per vehicle, not per kilo - i.e. it already takes the weight saving into account. http://www.rmi.org/RFGraph-carbonfiber_vs_steel_manufacturing Cost.

The following (2yo, but I don’t think things have changed much in the mean time) graph shows comparison of costs for carbon fibre vs steel in car manufacture. Note the cost shown is per vehicle, not per kilo – i.e. it already takes the weight saving into account.
http://www.rmi.org/RFGraph-carbonfiber_vs_steel_manufacturing

]]> By: hbgvfcdxsz hbgvfcdxsz http://boingboing.net/2011/11/17/sustainable-materials.html#comment-1272659 hbgvfcdxsz hbgvfcdxsz Thu, 17 Nov 2011 16:04:00 +0000 http://boingboing.net/?p=129898#comment-1272659 Brilliant. Refreshing to see an attempt at an impartial text into this subject. Why is a train made of heavy steel when it would be more efficient if they were made of a strong and light material like carbon fibre? or even a car made of CF? (Carbon fibre weighs roughly 1,800kg per cubic metre, which compares well with mildsteels at around 7,800kg per cubic metre.) Brilliant. Refreshing to see an attempt at an impartial text into this subject.

Why is a train made of heavy steel when it would be more efficient if they were made of a strong and light material like carbon fibre? or even a car made of CF?

(Carbon fibre weighs roughly 1,800kg per cubic metre, which compares well with mildsteels at around 7,800kg per cubic metre.)

]]> By: querent http://boingboing.net/2011/11/17/sustainable-materials.html#comment-1272622 querent Thu, 17 Nov 2011 15:26:00 +0000 http://boingboing.net/?p=129898#comment-1272622 First! Neat.  The side of me that pairs beers with chocolates wants to see this work paired with that of the Open Source Ecology people. http://opensourceecology.org/gvcs.php First!

Neat.  The side of me that pairs beers with chocolates wants to see this work paired with that of the Open Source Ecology people.

http://opensourceecology.org/gvcs.php

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