• The solution to Newton's GEXACT VALUE & FORMULA
  • The theory controlling planetary spinTHE MATHEMATICAL LAW
  • The pressure at the centre of a massEARTH'S CORE PRESSURE (calculation procedure)
  • Proof of the non-exitence of Dark MatterDOES NOT EXIST
  • The atom as Newton and Coulomb describe itNO NEED FOR A UNIFICATION THEORY
The solution to Newton's G1 The theory controlling planetary spin2 Pressure at the centre of the Earth3 Proof of the non-exitence of Dark Matter4 The atom as Newton describes it5
Available Now 2ᴺᴰ Moment of Area 2ᴺᴰ Moment of Area+ Added Mass & Drag Areas & Volumes Balancing (rotary) Beam Strength Beam Strength+ Bearings (low friction) Bearings (plain) Bending Moments BiMetallic Strip Buoyancy Carbon Steel Catenary Catenary+ Cathodic Protection Centrifugal Force Colebrook & Fanning Column Buckling Combined Stress Co-ordinates Copper Alloys Electrical Current Elliptical Curves Engineering Basics Explosions Fans Fatigue Flange Gaskets Flanges Floors Fluid Forces Fluid Numbers Friction Galvanic Corrosion Gears Hardness Conversion HPHT Flexible Pipe Lift Rigging Logs & Trig Machining Tolerances Metal Properties Mode Shapes Ocean Waves Optical Lenses Padeyes Partial Pressures Piling Pipe Flow Pipe Flow+ Pipe Strength Plastic Stress in Beams Plate Deflection Pressure Vessels Reel Capacity Resolution of Forces Screw Thread Machining Screw Threads Shafts Shock Loads Spring Coefficients Spring Strength Steel Beam Sizes Stress Concentration Table of the Elements Thermal Conductivity Trigonometry UniQon Upheaval Buckling Velocity & Acceleration Vessel Motions Vessel RAOs Vibration Damping Vortex Shedding Walls, Barriers & Tanks Weight Lifting Welding Wire Rope

Home » All Programs

 Checkout
Calculator Description
Combined Stress Calculator v1
Our combined stress calculator also provides equivalent and principal stresses of an elastically deformed material

Combined Stress

Subject

Primary and shear stresses (Sx, Sy, Sz, τxy, τxz, τyz) are always oriented (at right-angles) as shown in the [calculator] image.

Combined stresses refer to the combination of more than one primary and/or shear stress into 2-D or 3-D stress vectors that eliminate shear stresses but include their effects. These combination techniques only apply to stresses (primary and combined) that obey Hooke's law. The two best known and most used combined stresses are principal and equivalent.

Principal stresses are the two or three primary stress vectors (Sx, Sy and/or Sz) re-vectored (together) by the shear stresses (τxy, τxz and/or τyz), the largest of which is normally used in fatigue calculations
(see CalQlata’s Fatigue calculator).

An equivalent stress is a single stress vector resolved mathematically from all the primary and shear stresses (Sx, Sy, Sz, τxy, τxz, τyz). An equivalent stress will be more conservative than the largest principal stress and tends to be used for extreme design loads.
The two most used equivalent stresses were devised by Hencky & Von-Mises (strain energy) and St Venant (principal strain).

Calculator

Combined Stress calculates the combined; principal (including cosines) and equivalent (Hencky/Von-Mises and St Venant) stresses from your coincident primary and shear stress input data.

The combined stress calculator has one calculation option that produces all of the various combined stresses and cosines at the same time, including a self-check principal equivalent stress that uses different formulas to generate a Hencky/Von Mises equivalent stress via the principal stresses.

Combined Stress imports data from CaQlata’s Pipe Strength calculator

For help using this calculator, including its internal self-checking facility, see Technical Help

Combined Stress Calculator - Options

Combined Stress

Combined Stress converts uni-directional stresses into their various 3-D equivalents along with their orientations.

You enter: and the combined stress calculator will provide:
  • The three primary stresses; sx, sy & sz
  • The three shear stresses; τxy, τxz & τyz
  • Poisson’s ratio
  • The three Principal stresses; S1, S2, S3
  • The equivalent stress from primary and shear stresses
  • The equivalent stress from Principal stresses
  • St Venant’s equivalent stress
  • The three cosine displacements per Principal stress

Combined Stress includes a data import facility from CalQlata's Pipe calculator

Check minimum system requirements

 
 
Price: 15.00

 
« Previous | Next »

We accept the following payment methods

Credit Cards

      Go to our store
CalQlata™ Copyright ©2011-2017 CalQlata info@calqlata.com Site Map Terms of website use Our Store