Results 231 to 240 of about 44,002 (283)
Tear Strength of Stretched Rubber [PDF]
Rubber Chemistry and Technology, 1978 Abstract Highly stretched rubber sheets can be split apart quite easily, indicating that the originally isotropic material becomes “fibrous” in character—i.e., much weaker for a tear running in the direction of extension than for one running at right angles to it. This anisotropy of strength is shown most clearly by elastomers which crystallize
A. N. Gent, H. J. Kim
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Tear Strength of Non-aqueous Impression Materials [PDF]
Journal of Dental Research, 1984 Examples from each of the four major groups of dental impression materials (polysulfides, polyethers, condensation polysiloxanes, and addition polysiloxanes) were subjected to a trouser-leg tear test. Tear energies were determined, and materials were ranked with respect to each other.
S C, Keck, W H, Douglas
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The Effect of Thermoforming on Tear Strength of Ethylene Vinyl Acetate Mouthguard Material in Various Thicknesses [PDF]
Key Engineering Materials, 2017 The effect of thermoforming on the tear strength of ethylene vinyl acetate (EVA) mouthguard material (Bioplast®) has not been widely investigated. The present study compared the tear strengths of non-processed and processed EVA specimens in various ...
Irada Karnjanangulpan +5 more
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Textile Research Journal, 1947
An analysis has been made of the factors involved in the A.S.T.M. Trapezoid Tear-Strength Test. The tear strength of a fabric measured by this test is dependent mainly on the extensibility of the threads, the breaking strength of the threads, the effective specimen length, and the number of threads per inch of fabric.
O.B. Hager, D.D. Gagliardi, H.B. Walker
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An analysis has been made of the factors involved in the A.S.T.M. Trapezoid Tear-Strength Test. The tear strength of a fabric measured by this test is dependent mainly on the extensibility of the threads, the breaking strength of the threads, the effective specimen length, and the number of threads per inch of fabric.
O.B. Hager, D.D. Gagliardi, H.B. Walker
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Tear and tensile strength development of PGW and CTMP pulps mixed with PLA or viscose fibres [PDF]
Nordic Pulp and Paper Research Journal, 2014 The objective was to evaluate the effects on paper properties when replacing a minor share of wood fibre by synthetic fibre. The aim was to increase tear strength and stretch while minimizing the loss of tensile strength in paper consisting of mechanical
Korpela, Antti; id_orcid +1 more
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Journal of Materials Science, 1984
The fracture energy of moulded sheets of polyethylene has been found to depend strongly upon the thickness of the sheet, increasing linearly over the range 0.05 to 1.0 mm. This variation is attributed to a dependence of the volume of the plastic zone at the crack tip upont2, wheret is the torn thickness.
D. -S. Chiu, A. N. Gent, J. R. White
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The fracture energy of moulded sheets of polyethylene has been found to depend strongly upon the thickness of the sheet, increasing linearly over the range 0.05 to 1.0 mm. This variation is attributed to a dependence of the volume of the plastic zone at the crack tip upont2, wheret is the torn thickness.
D. -S. Chiu, A. N. Gent, J. R. White
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Tear strength of elastomeric impression materials
The Journal of Prosthetic Dentistry, 19781. Under simulated clinical conditions the maximum tear strength of those materials tested was reached in 10 to 15 minutes. 2. The polysulfide materials showed three to six times the tear strength of the silicones. 3. The polyether material displayed a tear resistance slightly higher than that of the silicones but one third to one fifth as high as that
T W, Herfort +3 more
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Structural parameters affecting tear strength of the fabrics tents [PDF]
AEJ - Alexandria Engineering Journal, 2018 The tearing strength is more vital in heavy duty fabrics. So it is important to know the effects of the fabric structural parameters on the tearing resistance of these types of fabrics.
Eman Eltahan
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Threshold tear strength of elastomers
Journal of Polymer Science: Polymer Physics Edition, 1982AbstractTear strengths have been measured for a wide variety of molecular networks under threshold conditions; i.e., at high temperatures, low rates of tearing, and with swollen samples. For all of the polymers examined, the threshold tear strength was found to be proportional to the square root of the average molecular weight Mc of network strands, in
A. N. Gent, R. H. Tobias
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The Tearing Strength of Glutaraldehyde Fixed Bovine Pericardium
Biomaterials, Artificial Cells and Artificial Organs, 1989Destructive uniaxial load tests were performed on bovine pericardium that had been chemically modified by glutaraldehyde fixation. To investigate the tearing strength of this tissue, an artificial tear, in the form of a 2mm notch, was introduced into the test specimens. Specimens without a notch, harvested from the same sites in the pericardial sac but
E A, Trowbridge, C E, Crofts
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