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Pre-stressed Buckled Beam Modeling
Posted 2018年9月28日 GMT-4 01:54 Structural & Acoustics Version 5.2 1 Reply
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Hi all, I am new to Comsol. I try to simulate the behaviors of a pre-stessed clamped-clamped buckled beam under transverse load applied on the middle point of the beam. Eventually, I want to obtain the force-displacement curve of the buckled beam. However, I don't know how to introduce the buckling. Also, I am unable to obtain the reaction force since I plan to apply the prescribed displacement to actuate the bistable beam from one stable position to the other one. Help me! I really need detailed instruction.
Thanks a lot!
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The information of my model: Beam: 14.9(length) x 3(width) x 0.132(thickness) mm. The span of two ends after pre-stressing is 14.0 mm. Material: PET; E: 3.0e9 Pa.