Results 261 to 270 of about 412,965 (302)

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
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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
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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
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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
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Stress Effects in Drying Polymer Films

MRS Proceedings, 1994
AbstractA model is developed to predict the magnitude and pattern of stress due to drying of polymer films. This model combines diffusion-and-convection equation with large deformation elasto-viscoplasticity, utilizing concentration dependent elastic and viscoplastic material properties to better represent the behavior of drying thin films.The results ...
S. Y. Tam, L. E. Scriven, H. K. Stolarski   +2 more
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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
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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
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Stress and strain during supercritical drying

Journal of Sol-Gel Science and Technology, 2018
Supercritical drying avoids capillary forces, but damaging stresses can be generated during solvent exchange, pressurization, and depressurization. Each of those steps has been analyzed, so the duration of the process can be minimized without risk to the sample.
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Drying of Granular Ceramic Films: II, Drying Stress and Saturation Uniformity

Journal of the American Ceramic Society, 1993
Films composed of ceramic particles were observed during drying. The films were prepared from 20 vol% aqueous dispersions of α‐alumina and α‐quartz and were free of any organic binder. Conditions for uniform film saturation during drying were established by consideration of a liquid transport model and by direct observation of the ...
Raymond C. Chiu, Michael J. Cima
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