Vibration of thin-walled members with shear lag using finite member element method

✍ Scribed by Wang, Quanfeng

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 110 KB
• Volume: 15
• Category: Article
• ISSN: 1069-8299
• DOI: 10.1002/(sici)1099-0887(199904)15:4<273::aid-cnm242>3.0.co;2-8

✦ Synopsis

A previously presented model is extended to cover the dynamics of thin-walled members with open and/or closed cross-section, making use of Hamilton's principle. Based on the displacement variational principle, a discrete method, called the ®nite member element method, is developed for vibration analysis of thin-walled members with arbitrary cross-section. The displacements at the two ends of the member element are adopted as basic variables in the method. The analysis takes into account the eect of shearing strains of the middle surface of walls on the vibration, which re¯ect the shear lag phenomenon. To verify the accuracy and eciency of the proposed method, the present results are compared with those obtained using the `COSMOS/M' ®nite element analysis program.