For choosing the correct composite panel for exterior applications it is necessary to check the thickness of the composite panels and the thickness of top and bottom metal sheets. Also, it is important to know the sizes of metal composite panels to be installed. This is a vital consideration as the curtain wall cladding would face wind loads and if the sizes are not in accordance to the stresses and deflections applied over the surface of MCPs, the sheets might disassemble, loose its shape or there can be a large oil canning effect which would damage the complete sanity of the design.
Stress and Deflection calculator in accordance to wind load would enable in getting the correct sizes of MCPs and the supports required for the particular size to be executed at the site.
Aludecor ACP sheets are available in three thicknesses viz 3mm, 4mm, and 6mm. Choosing the correct ACP for your particular application and its longevity in exteriors would be enhanced by the use of Stress and deflection calculator.
However, when it comes to choosing the ACP sheet for interiors, there is no windload or external atmospheric condition applicable. Here, you have to choose the appropriate core according to the building norms.
Stress, deflection and windload
Wind load depends on the following criterias viz height of the structure, location of the structure, terrain of the project, topography of the area, wind speed and whether it is under cyclonic zone or not. When we have calculated the wind load then we need to calculate the stress and deflection applied by it over our cladding material.
For Calculating Max stress and Deflection on Panel, we need to check the maximum stress and deflection which an ACP Panel can sustain as per its size, thickness and product ‘s mechanical properties. Installation is one of the major criteria for keeping up the durability of the system as a whole; and thus, our stress and deflection calculator can help.
Why use stiffeners?
ACP sheet panels may require stiffeners to share their stresses and deflection so that they do not lose their shape. These are additional supports usually of the same size as that of the conventional aluminium hollow rectangular profile being used for framework. These are stuck on the back of ACP by using double tape or structural silicon.
Designing metal facade with ACP?
There are three major criteria that need to be considered while designing any metal facade with ACP which are -
- Tensile Strength of top and bottom skin of ACP and Aluminium Extrusions
- Deflection criteria of ACP and Aluminium Extrusion as per specification or can be taken as l/60 in case of ACP and l/200 in case of extrusion used for framework.
Avoiding oil canning with Aludecor's ACP Sheets
Oil canning is one of the most challenging considerations of metal cladding. It appears as a "wavy distortion" on the flat surfaces of metal roofing and siding panels. Oil canning is characteristic of sheet metal roof and wall panel systems, although it can be minimized. Even if it cannot be entirely removed, it should not be regarded as a manufacturing defect.
Oil canning may occur for a variety of reasons. If the owner, architect, builder, or fabricator fully comprehends the scopes of oil canning, they will be better able to work to eliminate the waviness at each stage of the project..
In many projects, oil canning can have its origins in a wavy substrate. These waves could develop if the surface of the cladding material somewhat tapers due to wind pressure. .
To avoid all these complications, you need to reach out to our team of experts who can guide you with the ideal fabrication method to keep up the aesthetic and functionality of your property.