scholarly journals An efficient method of numerical solutions for microcomputer-aided finite element analysis. (1st report, A calculation method eliminating the LDU decomposition process of stiffness matrix and its application to an elastoplastic analysis of two-body problems composed of variable cross sectional rods)

1986 ◽  
Vol 52 (484) ◽  
pp. 2668-2674
Author(s):  
Naoki ASANO
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Efficient Method ◽  
Calculation Method ◽  
Stiffness Matrix ◽  
Numerical Solutions ◽  
Elastoplastic Analysis ◽  
Variable Cross ◽  
Element Analysis ◽  
Cross Sectional

Linear Thermomechanical Microactuators

1999 ◽  
Author(s):  
Rebecca Cragun ◽  
Larry L. Howell
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Thermal Expansion ◽  
Cross Sections ◽  
Variable Cross ◽  
Element Analysis ◽  
Thermal Actuators ◽  
Output Force ◽  
Analysis Models ◽  
High Output

Abstract Thermomechanical in-plane microactuators (TIMs) have been designed, modeled, fabricated, and tested. TIMs offer an alternative to arrays of smaller thermal actuators to obtain high output forces. The design is easily modified to obtain the desired output force or deflection for specific applications. The operational principle is based on the symmetrical thermal expansion of variable cross sections of the surface micromachined microdevice. Sixteen configurations of TIMs were fabricated of polysilicon. Finite element analysis models were used to predict the deflection and output force for the actuators. Experimental results were also recorded for all sixteen configurations, including deflections and output forces up to 20 micron and 35 dyne.

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