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This tool lets you to predict the deflection and stress of sandwich beam and plates. The deflection and stress levels predictions are required for sandwich or thick beam or plate design for a given shape, load, boundary and materials. Use the tool to design of sandwich beam or plates for any uniform pressure or point loading.

Sandwich structure is an epitome of structural element for exceptional flexural rigidity and lower weight. Sandwich Plates are common structural elements used in many engineering applications. For example, Roof, window, wall, door, glazing, membranes, table top, in building and construction, transportation (automobile, railway, aerospace), insulation panels, consumer product.

SANDWICH structures constitute, high stiff skin and low modulus core. The face skins are made of Metal, Non-metal, Plastics and composite sheets. The core is made of lightweight structural element of Wood, Foam or Honeycomb. The skin and core are combined using adhesive bonding, co-extrusion or lamination process. Some of the failure modes of sandwich structures are Bond failure, Skin yielding, Skin wrinkling, Core shear and Core fracture.

Usually, for a given Length, Width, load, boundary, we change the material and thickness to meet the deflection or strength criterion. Deflection limit depends on aesthetic (span/20), pop out, design limits (span/250, span/400, span/600), etc. Stress limit depends on the linear elastics stress, yield stress, ultimate failure stress, etc. A factor safety is usually added as per the Design codes.

Steps to use the tool

Start the program by tapping the options or edit icons.
1. Select sandwich type, beam or plate.
2. Enter Sheet length, width and skin, core Thickness dimensions.
3. The graphics will reflect your changes to input.
4. Select material type and enter material properties.
a. Enter skin and core properties
5. Select Load type and enter loading details.
6. Select Boundary conditions type and enter boundary details.
7. Select type or analysis linear vs Nonlinear
8. Click sandwich to calculate the deflection and stresses.
9. The results window will display the sandwich deflection, stress and along with material, load, and boundary and analysis details.

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1. The plates are flat with uniform thickness.
2. The length is greater than width
3. All forces, loading and reactions are acting normal to the plate surface.

Theory of Plates:
The general governing differential equation for an isotropic plate combined with shear deformation theory of thick beam or plates, relating the load, rigidity and flesxural and shear deformation is used for linear isotropic sandwich plate or beam performance prediction.

Isotropic plate differential equation including the effect of lateral loads and forces in the middle plane of the plate used for geometrical nonlinear performance prediction.Similarly, orthotropic plate governing equation is also considered for orthotropic plate performance prediction
Analytical solution for the above type of plate governing equations was compiled for various type of plate, boundary, loading conditions and is used for the plate performance prediction. The results predicted by Sandwich Calculator are also compared with numerical simulations. The analytical results predicted by app matches closely with the industry standard numerical finite element analysis solver results.

For additional support or help

Visit: http://apps.atoa.com/atoa-android-apps/sandwich-calculator-pro
mail: SandwichPRO@apps.atoa.com

You are allowed to use this product only within the laws of your country/region. SharewareOnSale and its staff are not responsible for any illegal activity. We did not develop this product; if you have an issue with this product, contact the developer. This product is offered "as is" without express or implied or any other type of warranty. The description of this product on this page is not a recommendation, endorsement, or review; it is a marketing description, written by the developer. The quality and performance of this product is without guarantee. Download or use at your own risk. If you don't feel comfortable with this product, then don't download it.

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