Results 71 to 80 of about 243,907 (116)
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2009
The current approach to understanding and predicting the behavior of energetic materials (EM) outside their designed mode of operation is through computational modeling. As stated in the introduction to this text, the problem of response prediction from the countless multitude of starting conditions is a dauntingly complex challenge. Although fitting a
Gary R. Parker, Philip J. Rae
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The current approach to understanding and predicting the behavior of energetic materials (EM) outside their designed mode of operation is through computational modeling. As stated in the introduction to this text, the problem of response prediction from the countless multitude of starting conditions is a dauntingly complex challenge. Although fitting a
Gary R. Parker, Philip J. Rae
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Thermal damage to corundum refractory
Refractories, 1984We studied the resistance of corundum refractory during thermal-impact loadings and showed that the weakening of the material due to the action of thermal stresses may be assessed both from its residual strength and also from data for the rate of dissemination of ultrasonic oscillations and acoustic emissions, recorded during the tests.
G. A. Gogotsi +2 more
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Proceedings of IEEE/ASME Joint Railroad Conference, 2002
A series of dynamometer tests were conducted to determine the limiting power required to produce wheel thermal damage, or the neutralization of the as-manufactured rim circumferential residual compressive stresses. Dynomometer and saw-cut tests were conducted on low-stress heat-treated CE-28, CH-36 and CB-38 freight car wheels to determine the onset of
D.H. Stone, G.F. Carpenter
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A series of dynamometer tests were conducted to determine the limiting power required to produce wheel thermal damage, or the neutralization of the as-manufactured rim circumferential residual compressive stresses. Dynomometer and saw-cut tests were conducted on low-stress heat-treated CE-28, CH-36 and CB-38 freight car wheels to determine the onset of
D.H. Stone, G.F. Carpenter
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Determination of isotherms of thermal damage
Proceedings of LEOS'94, 2002We have previously reported isotherms for the boundaries between white coagulation and the red damage zone and between the red zone and normal tissue in livers of rats irradiated in vivo with cw Nd:YAG laser light (/spl lambda/=1.064 microns) at constant times and powers.
S. Thomsen +3 more
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Thermal damage of granite after thermal shock cycle
Géotechnique Letters, 2020This paper reports the tensile strength and P-wave velocity of granite after cyclic high temperature and thermal shock, and calculates the thermal damage by tensile strength and P-wave velocity to explore a general method for evaluating thermal damage.
Z. Dong, Q. Sun, W. Zhang, C. Xu
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Thermal damage processes in myocardium
Proceedings of the 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Vol.20 Biomedical Engineering Towards the Year 2000 and Beyond (Cat. No.98CH36286), 2002Thermal damage processes follow kinetic governing relations and resultant damage depends on both temperature and time of exposure. Application to models of cardiac ablation depends on identification of a quantitative measure of thermal damage. Loss of the native state birefringence of myocardium is one such measure.
J.A. Pearce, S. Thomsen
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Thermal Neutron damage in cadmium
Radiation Effects, 1971Abstract The isochronal annealing of the damage produced by thermal neutron irradiation of cadmium at 3.6 °K has been studied for several initial doses which vary by a factor of 1000. The recovery results show a strong dependence upon initial dose.
R. R. Coltman +3 more
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Thermal Conductivity of Damaged MgO
1983This report represents a continuation of earlier investigations on the thermal conductivity of pure, neutron damaged, and additively colored MgO.1,2 Basically the current study is designed to relate quite generally the temperature dependence of the thermal conductivity to the type and density of the defects produced by a particular type of damage in ...
C. L. Tsai +3 more
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A Thermal Damage Model of UHMWPE
Key Engineering Materials, 2007Ultra high molecular weight polyethylene (UHMWPE) is a kind of non-polar polymer with a crystalline structure. Its failure appeared usually as a type of wire drawing when it was used as a material of rubbing pairs. By a designed heating test, the thermal damage phenomena of UHMWPE were observed by SEM.
Xin Lei Gao +3 more
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Thermal activation of fatigue damage
Metallurgical and Materials Transactions A, 2000The effect of temperature on the fatigue of aluminum alloys results from a combination of thermally induced changes in the microstructure and the intrinsic temperature dependence of the fatigue process. These two effects are separated for the first time, and it is shown that the intrinsic fatigue process is thermally activated. Two distinct regimes are
William J. Baxter +2 more
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