Maximum shear stress of steel?

www.matweb.com

The shear limit is related to the ultimate stress by different theories and the most current equations are either the von Mises which says that τmax= R /√3 = 0.57735*R, where R is Re= elasticity limit or an other one which states that τmax= 0.5*R. For combined loading and for steel (ductile material) the von Mises equation is the one to match the best experimental results.

Values for Re you can find in the matweb recommended in an other answer.

You may obtain this information from Solidworks/Cosmosworks, as well as analysis.

As mentioned, if you know the ultimate strength, you could either use Von Mises factor of 0.577 or Max shear stress of 0.5.

If you know the hardness of the material, the relationship of hardness to ultimate strength is Su = 3.45 BHN, where Su is in MPa and BHN is the Brinell Hardness.

There are approximately 10 000 different types of steel available..................did you have many in mind??????

I apologise for my sarcasm..........but I could not resist that one.

..............but seriously, every steel manufactured has information concerning it, e.g. tensile stress, compressive stress, shear stress, heat treatment of the material(complete with iron carbide equilibrium diagrams, TTT curves, etc) its machinability, weldability, etc etc.

If you know the steel manufacturer, of the steel that you require, it would probably be better to obtain the info you require directly from them...........then you know that the info is correct...............this of course will depend on the accuracy of the info you require.

If approximations are required the web is OK.

www.engineershandbook.com/Tables/steelprop.htm

check out this website a may help

Comes down the the alloy you're using...the heat treatment...the grain direction...and especially the configuration of the structure to verify the load paths through the material.

Perhaps list everything you know and we can help out more...a picture or two would be great...and a quick expanation of the situation might help... Often it's not the primary material that will fail first but the connecting welds, fasteners, etc or the some other instability like buckling. Only in a case of a 'steel' pin in a lug or a similar configuration would produce a perfect shearing force on the material and possibly make it fail under those specific circumstances.

"Am looking for a table with maximum shear stress for steel materials!
Does that even exist? Can't find any on the internet nor books!"

What books have you looked at? The shear stress is well defined in the Steel Handbook, either AISC or CISC. If you can find a textbook called "Strength of Materials" by Stephen Timoshenko, you will have a valuable addition to your library. For that matter, if you find any book authored by Timoshenko, grab it because they aren't making them anymore.

my friend,

he was asking for the max shear stress for steel,

not the theary about shear stress

The ratio between yield stress in tension and yield stress in shear is constant for an elastic material. In the case of steel, this ratio is known and is available in many sources, including the internet. Since he knows the yield stress in tension, he should be able to determine the yield stress in shear without difficulty.

Dear FRIEND,

Your comment is a proof of ignorance.

There is NOT a maximal shear of steel since for EVERY quality of steel there is an other value.

The answers gave ALL what was required by a interested person to obtain the value for the steel he looks at.

The other proof is the fact that you do NOT see the VALUE of the(o)ry.

Let me give you a definition: "theory is condensed practice".

I am sure you never looked at a "theory" book, may be you were afraid by the risk of not understanding?

An other friend!

see steel structures by gaylord