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Pre-stressed Buckled Beam Modeling

Posted 28 sept. 2018, 01:54 UTC−4 Structural & Acoustics Version 5.2 1 Reply

Wenzhong Yan
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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!

1 Reply Last Post 28 sept. 2018, 02:10 UTC−4
Wenzhong Yan
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Posted: 6 years ago 28 sept. 2018, 02:10 UTC−4

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.

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.

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