Abstract
A method is presented to incorporate non-linear material behavior in a transient simulation with component mode synthesis reduction. This method is used in conjunction with rigid body solution techniques to expand the useful range of rigid body design tools for the development of complex mechanisms. A fixed interface component mode synthesis technique is enhanced with an algorithm to approximate the effect of plastic deformation during a dynamic simulation. The plastic strain is determined from the elastic modal response using classical plasticity theory and applied to the modal solution by projecting an effective nodal force vector on the modal coordinates to induce the necessary plastic deformation. This method can be used during the design process to approximate the non-linear dynamic response of complex mechanisms and offer significant computational savings over a full fidelity, non-linear dynamic solution.
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Bond, J.T., Khraishi, T.A. Transient non-linear simulation with component mode synthesis. Int J Mech Mater Des 5, 365–380 (2009). https://doi.org/10.1007/s10999-009-9108-4
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DOI: https://doi.org/10.1007/s10999-009-9108-4