Results 261 to 270 of about 138,161 (301)

Dilational Lateral Stress in Drying Latex Films

Langmuir, 2010
Drying latex films usually experience tensile stress due to the reduction in volume. While an unconstrained film would shrink affinely in all three dimensions, a coating can only shrink along the vertical and therefore exerts tensile stress onto the substrate.
Koenig, Alexander, Bourgeat-Lami, Elodie, Mellon, Veronique, von Der Ehe, Kerstin, Routh, Alexander, Johannsmann, Diethelm   +5 more
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Apparatus for dry stress corrosion kinetic studies

Review of Scientific Instruments, 1979
An apparatus for carrying out kinetic studies on the dry stress corrosion of threadlike metal specimens in well-determined conditions of uniaxial stress is described. The results obtained by electrical conductivity measurements can easily be related to those obtained by thermogravimetry.
Y, Pourantru, S, Toesca, J C, Colson
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Maps of the stress distributions in drying latex films

Review of Scientific Instruments, 2007
We report on spatially resolved measurements of the mechanical stress in drying polymer films. The technique is based on the deflection of a flexible membrane serving as the substrate. Assuming that the lateral tension of the membrane is the main source of its resistance to deformation, one can show that the local surface stress σf (x,y) is ...
Kerstin, von der Ehe, Diethelm, Johannsmann   +1 more
openaire   +2 more sources

Drying-Induced Strain and Stress: A Review

Drying Technology, 1996
ABSTRACT This paper is to review the works on strains and suesses in materials during drying.The strains and suesses are caused when temperature and moisture gradients are generated in mterials whose volume changes with heating and moisture removal. In such materials. failure and irregular deformion may be generated which affect considerably the qudity
Masanobu Hasalani, Yoshinori Itaya
openaire   +1 more source

A Stress Model for Lumber Drying Control

Journal of Dynamic Systems, Measurement, and Control, 1982
Rapid changes in lumber value and energy costs have forced concern for more efficient lumber drying and a higher quality end product. Computer automation provides a practical solution to this problem. Mathematical predictions of moisture loss and shrinkage induced stress are required for effective automation. In response to this need an elastic-plastic
R. A. Lessard, D. E. Limbert, J. L. Pokoski, J. L. Hill   +3 more
openaire   +1 more source

Shades of Dry — Curing Urinary Stress Incontinence

New England Journal of Medicine, 2007
Urinary incontinence is a common condition affecting 20 to 40% of older women.1 The two most common types of urinary incontinence are stress incontinence, the involuntary loss of urine resulting from increased abdominal pressures (such as with a cough or Valsalva's maneuver), and urge incontinence, the involuntary loss of urine after an unwanted ...
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Drying-Induced Stresses in Macaroni Dough

Drying Technology, 2006
The mechanical effects like shrinkage and drying induced stresses arising during convective drying of macaroni dough are analyzed in this article. The aim of these studies is to test the sensitivity of macaroni dough on fracture formation caused by shrinkage during drying.
Stefan Jan Kowalski, Bolesław Mielniczuk   +1 more
openaire   +1 more source

Drying shrinkage and stresses

1992
A numerical study of the effects of shrinkage and stresses on drying kinetics was performed. A diffusional model was used, taking into account the deformation of the solid. The materials studied were a medium-shrinkage clay and a highly shrinking gel.
Ketelaars, A.A.J., Jomaa, W., Puiggali, J.R., Coumans, W.J.   +3 more
openaire   +1 more source

Stress development in drying fibers and spheres

Journal of Applied Polymer Science, 2003
AbstractStress development during drying is a critical factor that affects the final structure and properties of a coated fiber or spherical product. Stress development during drying of the coating is due to nonuniform shrinkage and physical constraints.
Herong Lei, Lorraine F. Francis, William W. Gerberich, L. E. Scriven   +3 more
openaire   +1 more source

Drying Induced Stresses in Viscoelastic Sphere

2001
The main subject of this paper is to study how the constitutive model of saturated porous body influences the numerically estimated drying induced stresses and deformations. Mechanical properties of porous materials are changing during drying. At the beginning they are viscous and in the course of moisture removing become viscoelastic, elastic or even ...
J. Banaszak, S. J. Kowalski
openaire   +1 more source