Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 22-01-2011, 09:13   #1
Registered User
 
Lexam's Avatar

Join Date: Jan 2011
Location: Kansas City, MO
Boat: In my dreams
Posts: 92
Foaming Metal for Cargo Ships

Thought someone might be interested in this.
New Foaming Metal Could Form Lighter Hulls For Cargo Ships | Popular Science
__________________

__________________
Lexam is offline   Reply With Quote
Old 22-01-2011, 10:09   #2
Registered User
 
Hydra's Avatar

Join Date: May 2009
Location: Lorient, Brittany, France
Boat: Gib'Sea 302, 30' - Hydra
Posts: 1,229
They didn't quote the cost of producing this foam. It is well known that making aluminum requires lots of electrical energy. I'm not sure that this new material would be cost-effective or energy-efficient.

Alain
__________________

__________________
Hydra is offline   Reply With Quote
Old 22-01-2011, 10:18   #3
Moderator Emeritus
 
David M's Avatar

Cruisers Forum Supporter

Join Date: Sep 2007
Location: San Francisco Bay
Boat: research vessel
Posts: 10,152
There are a lot of factors which are not addressed.

How corrosion resistant is the material?

There is no anti-foulant paint that works well that is compatible with aluminum other than TBT...which is now banned in most developed countries.

Most of a cargo ships weight is in its cargo. The article says it can cut a ships weight by 30%. Lets say for example, if half of a ships weight is cargo, then the real number is a reduction of 15%. Is a 15% reduction in displacement worth it?

If this deforms on impact, then how do tugs come alongside a ship? How does it hold up to impacts from hitting debris underway? How well does it hold up to being pressed against a pier?

How flexible is this material? Ships, just like bridges and aircraft, must be able to flex in order not to crack.

How expensive is this material to create and to work with?

Is it repairable?
__________________
David

Life begins where land ends.
David M is offline   Reply With Quote
Old 22-01-2011, 11:51   #4
Registered User
 
SabreKai's Avatar

Join Date: Sep 2008
Location: Toronto, Canada on Lake Ontario
Boat: Roberts Offshore 38
Posts: 1,287
Images: 5
I'd like to know how they fabricate ship parts from this stuff. Seems to me you wouldn't be able to torch cut the stuff and welding it would be impossible too. Manufacture parts already in the shape? That would result in huge costs for manufacture. Which leave the old standby. Rivets?

Interesting problems. I'll look forward to anymore info forth coming.


Sabre
__________________
SabreKai
SV Sabre Dance, Roberts Offshore 38
http://sabredancing.wordpress.com/
SabreKai is offline   Reply With Quote
Old 22-01-2011, 12:24   #5
Senior Cruiser
 
atoll's Avatar

Cruisers Forum Supporter

Join Date: Mar 2010
Location: gettin naughty on the beach in cornwall
Boat: 63 custom alloy sloop,macwester26,prout snowgoose 37 elite catamaran!
Posts: 9,312
Images: 75
great idea a bit like airex or balsa core only you can weld it conventionally and ,no need for stiffners either,plasma cut using auto cad,cheap, fast, very strong and efficient,be interesting what the bending coefficients are.


light weight ice breaking catamaran any body?
__________________
my catamaran building project updates http://www.cruisersforum.com/forums/...36#post2502136
atoll is offline   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Buying a Dhow to Move Cargo James S Off Topic Forum 49 01-01-2014 14:04
Transporting a Small Cruiser on a Cargo Ship pred02 Europe & Mediterranean 28 11-11-2010 04:45
Deck Cargo/Sea Freight Wojo Dollars & Cents 14 19-08-2008 17:22
Searching for informatin about big sail ships.Famous pirates ships. Santa Maria venelin General Sailing Forum 0 23-02-2008 03:20
Cargo Ship to fly a Kite RaptorDance Off Topic Forum 26 26-12-2007 03:41



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 08:30.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.