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The latest examples were presented within the implicit workshop on the LS-DYNA Forum 2016 in Bamberg by Alexander Gromer of DYNAmore. Recent examples of this section are published by Satish Pathy of LSTC. Most of the older examples are from the implicit classes of LSTC and were created by Prof. Dr. Ala Tabiei and Brad Maker. The copyright is with LSTC. You may check the examples separately with the menu on the left. For educational purposes the examples have to be modified to run properly. The description of the examples explains how to work with each example.

This example shows the static loading of the TOYOTA Yaris shock absorbers. The car model is based on the CCSA (former NCAC) TOYOTA Yaris. The author's aim is to do as less modifications as needed to make the model 'implicit ready'. This model was computed successfully with the LS-DYNA R9.0.1 MPP solver. Last but not least we want to aknowlege the CCSA for the baseline model.  …more

This example shows the dynamic loading of the TOYOTA Yaris shock absorbers. The car model is based on the CCSA (former NCAC) TOYOTA Yaris. The author's aim is to do as less modifications as needed to make the model 'implicit ready'. This model was computed successfully with the LS-DYNA R9.0.1 MPP solver. The model is based on the static loading example. Last but not least we want to aknowlege the CCSA for the baseline model.  …more

This example shows the static loading of the TOYOTA Yaris shock absorbers. The car model is based on the CCSA (former NCAC) TOYOTA Yaris. The author's aim is to do as less modifications as needed to make the model 'implicit ready'. This model was computed successfully with the LS-DYNA R9.0.1 MPP solver. Last but not least we want to aknowlege the CCSA for the baseline model.  …more

This example shows the static loading of the TOYOTA Yaris shock absorbers. The car model is based on the CCSA (former NCAC) TOYOTA Yaris. The author's aim is to do as less modifications as needed to make the model 'implicit ready'. This model was computed successfully with the LS-DYNA R9.0.1 MPP solver. Last but not least we want to aknowlege the CCSA for the baseline model.  …more

This problem demonstrates the ability to solve a complex, highly dynamic and nonlinear problem using the implicit solver of LS-DYNA. The model runs robustly and can be used as a learning aid for setting up implicit problems. The original car model of the Toyota Camry was taken from the NCAC FE model database. Please use a recent developer version of LS-DYNA (i.e. ls-dyna_mpp_d_dev_109569 or later) to compute this example.  …more

This problem demonstrates the ability to solve a complex, highly dynamic and nonlinear problem using the implicit solver of LS-DYNA. The load case will help users to set up seat pull simulations and similar problems. Please use a recent developer version of LS-DYNA (i.e. ls-dyna_mpp_d_dev_109569 or later) to compute this example.  …more

A static load is applied to the center of an ellipsoidal dome. Shell elements are used. Nodes at the base of the dome are constrained, and included in a NODFOR output database. Adaptivity is used to automatically refine the mesh in areas of high curvature.  …more

A static tensile test is simulated using shell elements. One end of the specimen is constrained, while concentrated nodal loads are applied at the other end. Uniform stresses develop in the narrowed center section.  …more

A static tensile test is simulated using shell elements and a nonlinear, elastic-plastic material model. One end of the specimen is constrained, while concentrated nodal loads are applied at the other end. Uniform stresses develop in the narrowed center section.  …more

A tip load is applied to a cantilevered beam made of shell elements. The tip of the beam is constrained to be rigid.  …more

The rear bumper of a truck is modeled using shell elements. A solid, rigid bar is displaced into the bumper, causing plastic buckling of the support. Post-buckling response is determined.  …more

A hemispherical ball of brick elements is displaced into a plate of brick elements. The plate is supported around its edges.  …more

A coarsely meshed wheel and tire assembly is 'kicked' by a brief transient load. The dynamic response of a node at the top of the tire is monitored.  …more

A cantilevered strip of shell elements is loaded using the static implicit method. The analysis type is then switched to explicit, the load is removed, and the dynamic response is simulated. The first fundamental response frequency is verified by eigenvalue analysis.  …more

A static load is applied to the center of an ellipsoidal dome. Shell elements are used. Nodes at the base of the dome are constrained, and included in a NODFOR output database.  …more

A doorbeam subassembly is deformed by a rigid pole. Shell elements are used throughout, and nodal rigid bodies are used to spotweld the components of the doorbeam. The pole is displaced to deform the doorbeam, then retracted to evaluate springback.  …more

This exercise involves two simulations. First, a cantilevered strip of shell elements is loaded using a dynamic explicit simulation. An output file named dynain is created at the end of this simulation. A second, implicit simulation is then performed which reads the dynain file and computes the springback deformation.  …more