Author Archives: dougaj4

Cubic Spline Update

Posted on 16/12/2009 by dougaj4

The previous post in this series presented a User Defined Function (UDF) to fit  a cubic spline to a series of points defined by XY coordinates.  Each segment of the resulting spline is defined by a separate cubic curve, which may be … Continue reading →

Posted in Coordinate Geometry, Excel, Maths, Newton, UDFs, VBA | Tagged , , , , | 1 Comment

The Ambassadors

Posted on 13/12/2009 by dougaj4

The Ambassadors (1533) is a painting by Hans Holbein the Younger in the National Gallery, London. As well as being a double portrait, the painting contains a still life of several meticulously rendered objects, the meaning of which is the cause … Continue reading →

Posted in Newton | Tagged , , | 1 Comment

Elegant Solutions – Why does this balance?

Posted on 09/12/2009 by dougaj4

From the Eng-Tips forum Why does the mechanism shown below balance when the load applied to each platform is the same, even when the lever arms from the pivot are different? It “looks wrong” but an analysis shows that the … Continue reading →

Posted in Beam Bending, Newton | 1 Comment

Reinforced Concrete Moment-Curvature – 2; Shrinkage and Creep

Posted on 08/12/2009 by dougaj4

The previous post in this series provided an Excel User Defined Function (UDF) to find  the short term curvature of a reinforced concrete section subject to combined bending and axial load.  In this post UDFs will be presented to determine the strain … Continue reading →

Posted in Concrete, Excel, Newton, UDFs, VBA | Tagged , , , , , , , | 4 Comments

New Release of Strand7

Posted on 07/12/2009 by dougaj4

The long awaited new release of Strand7 (R 2.4.1) appeared today.  Click below for more details:

Posted in Finite Element Analysis, Newton | Tagged , , | Leave a comment