RESEARCH ON THE STABILITY OF COMPOSITE VARIABLE CROSS-SECTION COMPRESSION STRUTS

MA Sen; ZHAO Qilin

doi:10.13204/j.gyjzG20051212

Volume 51 Issue 9

Jan. 2022

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MA Sen, ZHAO Qilin. RESEARCH ON THE STABILITY OF COMPOSITE VARIABLE CROSS-SECTION COMPRESSION STRUTS[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(9): 202-206,229. doi: 10.13204/j.gyjzG20051212

Citation:

MA Sen, ZHAO Qilin. RESEARCH ON THE STABILITY OF COMPOSITE VARIABLE CROSS-SECTION COMPRESSION STRUTS[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(9): 202-206,229. doi: 10.13204/j.gyjzG20051212

MA Sen, ZHAO Qilin. RESEARCH ON THE STABILITY OF COMPOSITE VARIABLE CROSS-SECTION COMPRESSION STRUTS[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(9): 202-206,229. doi: 10.13204/j.gyjzG20051212

Citation:

MA Sen, ZHAO Qilin. RESEARCH ON THE STABILITY OF COMPOSITE VARIABLE CROSS-SECTION COMPRESSION STRUTS[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(9): 202-206,229. doi: 10.13204/j.gyjzG20051212

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RESEARCH ON THE STABILITY OF COMPOSITE VARIABLE CROSS-SECTION COMPRESSION STRUTS

doi: 10.13204/j.gyjzG20051212

MA Sen¹,
ZHAO Qilin²

1. Training Base, Officers College of PAP, Guangzhou 510440, China;
2. School of Mechanical and Power Engineering, Nanjing Tech University, Nanjing 211816, China

Received Date: 2020-05-12
Available Online: 2022-01-11

Abstract

Abstract

Based on the idea of the equivalent parameters method and energy method, the theoretical formula of composite variable cross-section struts was deduced. Firstly, the wall of the composite compression strut was equivalent to an orthotropic shell whose main axis direction was consistent with the axial direction of the strut based on the idea of the equivalent parameters method, then, the composite strut could be approximated as an orthotropic strut. Thirdly, aiming at the orthotropic compression strut, the buckling deflection equation of compression structs was assumed, and the formula for the theoretical stability load was deduced based on the energy method. Finally, the accuracy of the formula was verified and discussed by comparison with ones by the finite element method, the results showed that:the theory formula in could accurately predict the critical load of the composite variable cross-section compression strut.
- composite cross-section compression strut,
- energy method,
- stability theory,
- critical load of stability

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References(18)

References

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