Ordering of spontaneously formed buckles on planar surfaces

Langmuir

Volumn 16, Issue 7, 2000, Pages 3497-3501

  Huck, Wilhelm T S ^a   Bowden, Ned ^a   Onck, Patrick ^a   Pardoen, Thomas ^a   Hutchinson, John W ^a   Whitesides, George M ^a  

^a HARVARD UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

BUCKLING; COMPRESSIVE STRESS; COOLING; DEPOSITION; ELASTOMERS; PHOTOCHEMICAL REACTIONS; SHRINKAGE; SILICONES; STIFFNESS; STRESS CONCENTRATION; THERMAL EXPANSION; THIN FILMS;

POLYDIMETHYLSILOXANE;

GOLD;

EID: 0033903787     PISSN: 07437463     EISSN: None     Source Type: Journal    
DOI: 10.1021/la991302l     Document Type: Article

References (19)

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2. Moldovan, D.; Golubovic, L. Phys. Rev. Lett. 1999, 82, 2884. Gilabert, A.; Sibillot, P.; Sornette, D.; Vanneste, C.; Maugis, D.; Muttin, F. Eur. J. Mech. A 1992, 11, 65.
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8. Allen, H. G. Analysis and Design of Sandwich Panels; Pergamom: New York, 1969.
9. We studied the formation of patterns in the interior of the samples, well away from the edges of the specimen where the prebuckling stress in the gold film is highly nonuniform. In interior regions, the prebuckling stress is nearly uniform and equibiaxial.
10. Onck, P.; Pardoen, T.; Hutchinson, J., in preparation.
11. Timoshenko, S. P.; Gere, J. M. Theory of Elastic Stability; McGraw-Hill: New York, 1961.
12. Brush, D. O.; Almroth, B. O. Buckling of Bars, Plates and Shells; McGraw-Hill: New York, 1975.
13. s.
14. s = 0.48.
15. ABAQUS Version 5.7 User's Manual; Hibbit, Karlsson, and Sorensen: Providence, RI, 1997.
16. i/20 has been used. It was verified that this imperfection does not influence the solution.
17. 2 = 0.3.
18. The main approximations or assumptions of the model are (i) the bilayer plate is considered as one plate with homogeneous properties, (ii) springs adequately model the substrate, (iii) the calibration of the springs, and (iv) the use of identical Poisson ratios for the two components of the bilayer plate.
19. It should be noted that the model is relatively sensitive to small variations in the governing parameters (characteristic lengths as well as elastic properties). The same sensitivity to UV exposure time and other processing variables is observed in the experimental patterns.