Design method of structural retrofitting using viscous dampers based on elastic–plastic response reduction curve

2020 ◽  
Vol 208 ◽  
pp. 109917 ◽  
Author(s):  
Hua Shen ◽  
Ruifu Zhang ◽  
Dagen Weng ◽  
Qingzi Ge ◽  
Chao Wang ◽  
...  
Keyword(s):  
Design Method ◽  
Plastic Response ◽  
Viscous Dampers ◽  
Reduction Curve ◽  
Elastic Plastic

A design method of viscoelastic damper parameters based on the elastic-plastic response reduction curve

2019 ◽  
Vol 117 ◽  
pp. 149-163 ◽  
Author(s):  
Li Zhang ◽  
Mingzhou Su ◽  
Chao Zhang ◽  
Hua Shen ◽  
Md Mofakkharul Islam ◽  
...  
Keyword(s):  
Design Method ◽  
Plastic Response ◽  
Viscoelastic Damper ◽  
Reduction Curve ◽  
Elastic Plastic

Simple design method of structure with metallic yielding dampers based on elastic–plastic response reduction curve

2017 ◽  
Vol 150 ◽  
pp. 98-114 ◽  
Author(s):  
Hua Shen ◽  
Ruifu Zhang ◽  
Dagen Weng ◽  
Cong Gao ◽  
Hao Luo ◽  
...  
Keyword(s):  
Design Method ◽  
Simple Design ◽  
Plastic Response ◽  
Reduction Curve ◽  
Elastic Plastic

scholarly journals Assessment of DBA-L Pressure Vessel Design Method by a Cylindrical Vessel with Hemispherical Ends

2019 ◽  
Vol 256 ◽  
pp. 02001
Author(s):  
Ren Xincheng ◽  
Hongjun Li ◽  
Xun Huang
Keyword(s):  
Stress Analysis ◽  
Pressure Vessel ◽  
Design Method ◽  
Design Methods ◽  
Cylindrical Vessel ◽  
Elastic Analysis ◽  
Explicit Method ◽  
Elastic Plastic ◽  
Cylindrical Pressure Vessel ◽  
Plastic Stress

Stress categorization is an essential procedure in Design by Analysis (DBA) pressure vessel design methods based on elastic analysis in ASME and EN code. It was difficult to implement especially around structural discontinuities. A new elastic analysis, DBA-L, was proposed recently to avoid stress categorization. A model of the cylindrical pressure vessel with spherical end is used to check the validity of this method by comparing with other design methods based on stress categorization procedures and elastic-plastic stress analysis from ASME and EN code. The results indicate that the DBA-L is an economic and explicit method, and can be used an alternative method to stress categorization.

Elastoplastic Analysis of Layered Metal Matrix Composite Cylinders—Part I: Theory

1996 ◽  
Vol 118 (1) ◽  
pp. 13-20 ◽  
Author(s):  
R. S. Salzar ◽  
M.-J. Pindera ◽  
F. W. Barton
Keyword(s):  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Stiffness Matrix ◽  
Metal Matrix ◽  
Plastic Response ◽  
Solution Strategy ◽  
Composite Tubes ◽  
Elastic Plastic ◽  
Stiffness Matrices ◽  
Local Stiffness

An exact elastic-plastic analytical solution for an arbitrarily laminated metal matrix composite tube subjected to axisymmetric thermo-mechanical and torsional loading is presented. First, exact solutions for transversely isotropic and monoclinic (off-axis) elastoplastic cylindrical shells are developed which are then reformulated in terms of the interfacial displacements as the fundamental unknowns by constructing a local stiffness matrix for the shell. Assembly of the local stiffness matrices into a global stiffness matrix in a particular manner ensures satisfaction of interfacial traction and displacement continuity conditions, as well as the external boundary conditions. Due to the lack of a general macroscopic constitutive theory for the elastic-plastic response of unidirectional metal matrix composites, the micromechanics method of cells model is employed to calculate the effective elastic-plastic properties of the individual layers used in determining the elements of the local and thus global stiffness matrices. The resulting system of equations is then solved using Mendelson’s iterative method of successive elastic solutions developed for elastoplastic boundary-value problems. Part I of the paper outlines the aforementioned solution strategy. In Part II (Salzar et al., 1996) this solution strategy is first validated by comparison with available closed-form solutions as well as with results obtained using the finite-element approach. Subsequently, examples are presented that illustrate the utility of the developed solution methodology in predicting the elastic-plastic response of arbitrarily laminated metal matrix composite tubes. In particular, optimization of the response of composite tubes under internal pressure is considered through the use of functionally graded architectures.

On the Elastic-Plastic Response of a Large-Tow Triaxially Braided Composite

2003 ◽  
Vol 16 (2) ◽  
pp. 183-191
Author(s):  
Edward Zywicz ◽  
Michael J. O’Brien ◽  
Thao Nguyen
Keyword(s):  
Plastic Response ◽  
Braided Composite ◽  
Elastic Plastic
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