Optimal Design of Tow-Placed Fuselage Panels for Maximum Strength with Buckling Considerations

2010 ◽  
Vol 47 (3) ◽  
pp. 775-782 ◽  
Author(s):  
Ahmad Alhajahmad ◽  
Mostafa M. Abdalla ◽  
Zafer Gürdal
Keyword(s):  
Optimal Design ◽  
Maximum Strength

Polymer-Gel Phase-Transition as the Mechanism of Muscle Contraction

1999 ◽  
Vol 600 ◽  
Author(s):  
Gerald H. Pollack
Keyword(s):  
Phase Transition ◽  
Optimal Design ◽  
Muscle Contraction ◽  
Design Principles ◽  
Maximum Strength ◽  
Artificial Muscles ◽  
Polymer Gel ◽  
Contraction Mechanism ◽  
Gel Phase ◽  
Cross Bridges

AbstractThe thesis offered here is that the muscle-contraction mechanism is similar to the mechanism of contraction in many artificial muscles. Artificial muscles typically contract by a phasetransition. Muscle is thought to contract by a sliding-filament mechanism in which one set of filaments is driven past another by the action of cyclically rotating cross-bridges—much like the mechanism of rowing. However, the evidence is equally consistent with a mechanism in which the filaments themselves contract, much like the condensation of polymers during a phasetransition. Muscle contains three principal polymer types organized neatly within a framework. All three can shorten. The contributions of each filament may be designed to confer maximum strength, speed and versatility on this biological machine. The principles of natural contraction may be useful in establishing optimal design principles for artificial muscles.

Optimal Topography of Force Transmission by Flexure

1973 ◽  
Vol 40 (4) ◽  
pp. 983-987 ◽  
Author(s):  
G. I. N. Rozvany
Keyword(s):  
Optimal Design ◽  
Optimality Conditions ◽  
Maximum Strength ◽  
Loading Conditions ◽  
Optimal Solutions ◽  
Force Transmission ◽  
Comprehensive Description ◽  
Maximum Stiffness ◽  
General Rules ◽  
Wide Range

Optimality conditions for grillages of maximum strength and maximum stiffness and fiber-reinforced plates of maximum strength are discussed in the light of Prager’s theories of optimal design and a comprehensive description of the topographical properties of optimal solutions for clamped boundaries is given. General rules are derived for obtaining optimal solutions for a wide range of boundary and loading conditions.

Crack divergence phenomena in tempered glass

2020 ◽  
Vol 13 (3) ◽  
pp. 115-129
Author(s):  
Shin’ichi Aratani
Keyword(s):  
Optimal Design ◽  
High Speed ◽  
Glass Plate ◽  
Acute Angle ◽  
Divergence Angle ◽  
High Speed Photography ◽  
Tempered Glass ◽  
Thick Glass

High speed photography using the Cranz-Schardin camera was performed to study the crack divergence and divergence angle in thermally tempered glass. A tempered 3.5 mm thick glass plate was used as a specimen. It was shown that two types of bifurcation and branching existed as the crack divergence. The divergence angle was smaller than the value calculated from the principle of optimal design and showed an acute angle.

G Optimal Design in Non linear Models to Increase Silicon Oxide Purity Levels and Electrical Conductivity

2018 ◽  
pp. 150-155
Author(s):  
Muklas Rivai
Keyword(s):  
Electrical Conductivity ◽  
Optimal Design ◽  
Linear Models ◽  
Silicon Oxide ◽  
Information Matrix ◽  
Relevant Information ◽  
Non Linear

Optimal design is a design which required in determining the points of variable factors that would be attempted to optimize the relevant information so that fulfilled the desired criteria. The optimal fulfillment criteria based on the information matrix of the selected model.

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