Closure to “Discussion of ‘General Procedure for Analyzing Thick Shells of Irregular Shapes for Mechanical and Thermal Loading’” (1963, ASME J. Eng. Ind., 85, p. 319)

1963 ◽  
Vol 85 (3) ◽  
pp. 320-320
Author(s):  
P. P. Bijlaard ◽  
R. J. Dohrmann
Keyword(s):  
Thermal Loading ◽  
General Procedure ◽  
Irregular Shapes ◽  
Thick Shells

General Procedure for Analyzing Thick Shells of Irregular Shapes for Mechanical and Thermal Loading

1963 ◽  
Vol 85 (3) ◽  
pp. 314-319 ◽  
Author(s):  
P. P. Bijlaard ◽  
R. J. Dohrmann
Keyword(s):  
Elastic Foundation ◽  
Pressure Vessel ◽  
Thermal Loading ◽  
General Procedure ◽  
New Method ◽  
Thermal Gradients ◽  
Beam On Elastic Foundation ◽  
Irregular Shapes ◽  
Thick Shells ◽  
General Method

A general method is presented for analyzing thick shells of irregular shape for mechanical and thermal loading, allowing axial as well as radial thermal gradients. The method takes into account geometry flexibility. It is shown that, for thick shells also, the beam on elastic foundation approach is applicable. With the new method, pressure-vessel calculations can be greatly simplified and engineering man-hours substantially reduced.

A quantitative image analysis method for the determination of cocontinuity in polymer blends

1993 ◽  
Vol 51 ◽  
pp. 894-895
Author(s):  
William A. Heeschen
Keyword(s):  
Image Analysis ◽  
Polymer Blends ◽  
Quantitative Measurement ◽  
Morphological Evolution ◽  
Phase Ratio ◽  
Irregular Shapes ◽  
Quantitative Image ◽  
Discrete Domains ◽  
A Domains

Two new morphological measurements based on digital image analysis, CoContinuity and CoContinuity Balance, have been developed and implemented for quantitative measurement of morphology in polymer blends. The morphology of polymer blends varies with phase ratio, composition and processing. A typical morphological evolution for increasing phase ratio of polymer A to polymer B starts with discrete domains of A in a matrix of B (A/B < 1), moves through a cocontinuous distribution of A and B (A/B ≈ 1) and finishes with discrete domains of B in a matrix of A (A/B > 1). For low phase ratios, A is often seen as solid convex particles embedded in the continuous B phase. As the ratio increases, A domains begin to evolve into irregular shapes, though still recognizable as separate domains. Further increase in the phase ratio leads to A domains which extend into and surround the B phase while the B phase simultaneously extends into and surrounds the A phase.

Analysis and Design of Partially Prestressed Concrete Bridges Under Thermal Loading

PCI Journal ◽  
1984 ◽  
Vol 29 (3) ◽  
pp. 94-115 ◽  
Author(s):  
N. Cooke ◽  
M. J. N. Priestley ◽  
S. J. Thurston
Keyword(s):  
Prestressed Concrete ◽  
Thermal Loading ◽  
Concrete Bridges ◽  
Analysis And Design ◽  
Prestressed Concrete Bridges
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