Mechanical strains thin-walled

Stretched films in order to reduce brittleness. Also blister packs from crystalline polymers are often made from biaxially oriented film to obtain good mechanical and optical properties and in addition to avoid variations in wall thickness. An unoriented film may show the necking-in phenomenon in highly strained regions, resulting in an article with thick unoriented and thin highly oriented parts. A biaxially oriented film does not show this necking and a more even wall thickness is obtained. 

Each of these steps depends on the process before. The software suite starts with the material selection, in which also an individual material can be dehned. Fiber orientations and the number of plies can be selected in a following step. All material parameters must be chosen before the analysis can start. Six structural analysis modules can be differentiated with the CDS software suite. These solid mechanic modules are thick-walled cylinder, thin plate, thin plate impact-fastener modeling, thick plate, discontinuous tile modeling and compliant beam interlayer analysis. The CDS software suite allows changing the parameters of the manufacturing process or the laminate structure in real time. Four result sections for those parameter changes are provided by the software the effective properties, thermal-processing response, stress-strain results and the failure response. The CDS software suite is a complete analysis tool kit which is easy to use for the client. The software also allows export into an external simulation tool. 

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