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RE: Gravel Trailer Chassis Design

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List,
Our insurer wrote a newsletter to all their insured a few
years ago advising them to never use the word "certify"
as it implies a guarantee or warranty.
Gary


On 14 Jun 2004 at 7:49, Jason W. Kilgore wrote:

> Iâ??m probably responding too late, but Iâ??d tread very lightly on
> this one.  I missed the word â??certifyâ?? in your original post.
>
> Iâ??ve found that when someone says â??I need someone to certify
> thisâ??, it means one of two things.  Either some governing body wants
> proof that someone knowledgeable can back up a design with numbers, or
> a bank or insurance company wants someone to sic the lawyers on if
> something bad happens.  Your client might need certification to get a
> license or insurance or both.
>
> Also, are you certifying the design or the actual trailer?  I have
> faith in the ability of most structural engineers to check the
> analysis of a trailer.  It might require some digging and research,
> but it can be done.  But can you certify the welds just by looking at
> them?  I know from personal experience that just because a multi-pass
> weld looks good on the outside, it doesnâ??t mean itâ??s good all the
> way through.  If youâ??re being asked to certify a specific trailer,
> then Iâ??d have testing done on all connections.
>
> As for loads, follow and listen to a truck/trailer on a bumpy road, or
> over railroad tracks.  Make sure you take fatigue into account.
>
> Good luck.
>
> ---
> Jason Kilgore
> Leigh & O'Kane, LLC
> Kansas City, Missouri
>
> -----Original Message-----
> From: Hans E Boge [mailto:Hanseb(--nospam--at)boge-boge.com]
> Sent: Wednesday, June 09, 2004 8:26 AM
> To: seaint(--nospam--at)seaint.org
> Subject: Gravel Trailer Chassis Design
> Anyone know of design standards or code requirements for trailer
> chassis for North America. Load factors and other design criteria,
> allowable stress etc. etc. I have been asked to certify a home made
> design. â?º -------------------------------------
>
>
>
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