Let's talk about something that might be new to even those who have seen and used sheet metal stamping simulation many times previously. The Forming Limit Diagram (FLD) is the fundamental tool which is used to judge whether a formed sheet metal part is predicted to fail or pass, when analyzing stamping simulation results. The "standard" FLD assumes a linear strain path, however, strain paths are not always linear in reality.
Non-linear strain paths usually begin occurring in secondary and subsequent forming operations, especially when the material is formed in the reverse or opposite direction. Therefore, if only a linear FLD is considered in a multi stage sheet metal stamping simulation, it is possible that a non-linear failure mode may be overlooked. Therefore, non-linear FLD analysis is required in many cases before a sheet metal stamping simulation can be given a "pass".
StampingSimulation.com uses AutoForm Incremental and non-linear FLD analysis is an integral part of this software. [Image: Standard Linear FLD. Right: Non-linear FLD showing additional failure mode]
About StampingSimulation.com
StampingSimulation.com is a world wide team of specialist forming simulation and sheet metal forming engineers. With resources across three continents (North America, Europe and Australasia) we are uniquely placed to offer fast turn around times on all structural simulation, hydro forming simulations, ANSYS simulations and sheet metal forming simulations.
Non-linear strain paths usually begin occurring in secondary and subsequent forming operations, especially when the material is formed in the reverse or opposite direction. Therefore, if only a linear FLD is considered in a multi stage sheet metal stamping simulation, it is possible that a non-linear failure mode may be overlooked. Therefore, non-linear FLD analysis is required in many cases before a sheet metal stamping simulation can be given a "pass".
StampingSimulation.com uses AutoForm Incremental and non-linear FLD analysis is an integral part of this software. [Image: Standard Linear FLD. Right: Non-linear FLD showing additional failure mode]
About StampingSimulation.com
StampingSimulation.com is a world wide team of specialist forming simulation and sheet metal forming engineers. With resources across three continents (North America, Europe and Australasia) we are uniquely placed to offer fast turn around times on all structural simulation, hydro forming simulations, ANSYS simulations and sheet metal forming simulations.
No comments:
Post a Comment