Category Archives: Newton

PaulBourke.net

Posted on 23/07/2011 by dougaj4

Another link from Al Vachris: PaulBourke.net. The link above has a general subject index, and google site search; for a full list of the site content go to the detailed site index. Here’s what the author says about it: “The … Continue reading →

Posted in Computing - general, Coordinate Geometry, Maths, Newton, Ray Tracing | Tagged , , , | Leave a comment

Using LatPilePY

Posted on 09/07/2011 by dougaj4

LatPilePY is a User Defined Function (UDF) used to analyse the deflections and load actions in laterally loaded piles.  It was presented in this post: LatPilePY.  In response to an e-mail request, this post will give step by step instructions for … Continue reading →

Posted in Arrays, Concrete, Excel, Geotechnical Engineering, Newton, UDFs, VBA | Tagged , , , , , , | Leave a comment

Buckling of Tubes – 2

Posted on 06/07/2011 by dougaj4

Following on from yesterday’s post, today we’ll look at the buckling of the cylindrical tubes: The tube in this analysis was defined to have a small (0.01 mm) asymmetric bulge at mid height, to initiate buckling.  The video shows that … Continue reading →

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Buckling of Tubes

Posted on 05/07/2011 by dougaj4

The video here The Surfing Scientist shows a rough and ready experiment demonstrating the superior strength under axial load of cylindrical tubes, compared with square tubes (skip to 1:30 if you are not interested in the chat). The conclusion about … Continue reading →

Posted in Finite Element Analysis, Newton | Tagged , , , , | 4 Comments

Rotating Hypercubes

Posted on 25/06/2011 by dougaj4

The discussion of dancing pendulums in javascript at SSSF led onto Rotating Hypercubes, which resulted in this javascript animation by forum regular mollwollfumble: 4D Rotations (click to view in a new window, right click to download javascript file) See the SSSF thread for discussion on … Continue reading →

Posted in Animation, Maths, Newton | Tagged , , , | 5 Comments