Airframe Stress Analysis Vol. 2: Free Kindle Promotion

Composite parts fail stress reviews for reasons a metals background does not prepare you for: a laminate allowable taken from the wrong level of the test pyramid, or a bolted joint sized as if carbon behaved like aluminium. The Kindle ebook of the volume I wrote on exactly those problems is free to download for the next five days.

A composite book written from the stress office

Most composite textbooks start from micromechanics and stay there. This one starts where a stress engineer starts, with a part, its loads and the substantiation a certification engineer will ask for, and it brings in the theory only as far as the analysis needs it. The 24 chapters carry 78 worked examples, each taken through to a margin.

What it covers

It opens with classical laminate theory and the failure criteria engineers actually use, then explains building-block allowables and why the number on a data sheet is rarely the number you may use in a margin. The joint chapters treat bolted, bonded and hybrid metal-to-composite joints, including bearing, bypass and the load share between fasteners, which is where many first composite designs go wrong.

The second half deals with damage: impact, compression after impact, fatigue in composite structure and repairs, and how each one enters the static analysis. It closes with the composite stress report and the certification package, so the analysis ends as a document someone can sign.

As in Volume 1, the methods come from public sources, the material values are illustrative, and on a program the allowables and methods your company has qualified take precedence.

Where it helps most

The book earns its place on the days a composite question lands on a metals analyst’s desk. A laminate needs a quick first-ply check before a design review, a repair doubler needs a margin by the end of the week, or a joint that worked in aluminium has to be redone in carbon. Each of those has a chapter and worked examples that go all the way to a number you can defend.

Who it is for

Analysts moving from metallic to composite parts, engineers on wind, space or automotive programs who work with laminates, and checkers who now review carbon structure all fit the audience. If you have only ever seen composites from the manufacturing side, the book shows what the stress office needs from you.

Getting the free copy

The button above opens Amazon on your own country’s store. Look for a Kindle price of 0.00 and buy it as you would any other ebook. It goes straight into your Kindle library and syncs to the app on every device you use, which matters for a book with this many laminate tables.

The paperback and the rest of the series

Only the Kindle ebook is free; the paperback keeps its normal price. Volume 1 on metallic structure is in the same promotion, as is the Python book that turns the series’ methods into code. Readers can also use the free reader’s companion, a short quiz for each chapter.

If you read it and it helps, an honest rating or review on the Amazon store where you downloaded it would mean a lot to me.