...) prismatic geometry high temperature cyclic loading 21 01 2020 29 05 2020 21 08 2020 All rights reserved. This material may not be reproduced or copied, in whole or part, in any printed, mechanical, electronic, film, or other distribution and storage media, without the written...

... have more resistance by about 10 to 40 %. 06 03 2017 18 09 2017 29 05 2018 fiber concrete steel and polypropylene fibers high temperature compressive strength tensile strength modulus of rupture References Husem , M. , “ The Effects of High Temperature...

...Z. Wang; K. Li; C. Wang Carbon-fiber-reinforced cement-based composites are widely used as electromagnetic microwave shielding materials. However, high temperature on fire can affect not only their mechanical properties but also microwave-absorbing abilities. In this paper, the specimens...

...V. Muñoz; G. A. Rohr; A. L. Cavalieri; A. G. Tomba Martinez Experimental issues regarding the implementation of a methodology for obtaining strain-stress curves at high temperatures and in a controlled atmosphere of oxide-C refractories are presented. These curves give a detailed description...

...Young Wha Ma; Kee Bong Yoon As new creep resistant materials are developed for the temperature range of 800–1100°C, the improved creep properties sometimes require the modification of the conventional approaches in high temperature life assessment procedures which have been applied for low alloy...

..., this property was significantly increased by extended exposure at high temperature. In summary, the reduction in mechanical properties for FR-treated 2 by 4 lumber occurred at a rate no different than that for matched untreated lumber when exposed to elevated temperature. References Winandy , J. E...

... case. The results show that careful calibration of every testing machine and, in some cases, finite element modeling of the tests, are essential to give a similar curve for the same nominal deformation conditions. 11 09 2000 23 05 2001 high temperature tensile testing axisymmetric...

... transition temperature of the polymer. In addition, while typical commercial strain gages can be used for short times at temperatures up to 370°C, their long-term use is limited to 230°C. This precludes their use for testing some high-temperature polyimides near their maximum-temperature capability...

.... , Kromp , K. , and Pabst , R. F. , “ Crack Resistance Curves of an Alumina at High Temperatures ,” Journal of Materials Science   0022-2461 , Vol. 22 , 1987 , pp. 1352 - 58 . Maniette , Y. , Inagaki , M. , and Sakai , M. , “ Fracture Toughness and Crack Bridging of a Silicon...

...KC Liu; JL Ding Design and development of a simple mechanical strain extensometer for high-temperature tensile testing of ceramic materials are described. The extensometer uses the lever-arm concept to proportionally reproduce the displacements of fiducial gage marks defined on a specimen. Various...

... above 650°F (343°C). Ten-thousand-hour stress relaxation tests were conducted in the temperature range of 500 to 850°F (260 to 454°C) to determine the usable temperature limit of flexible graphite. The effects of joint flexibility and reloading were also evaluated at high temperatures. 21 10 1991...

... References Gyekenyesi , J. Z. and Hemann , J. H. , “ Optical Strain Measuring Techniques for High Temperature Tensile Testing ,” NASA Contractor Report 179637. Gyekenyesi , J. Z. and Hemann , J. H. , “ High Temperature Tensile Testing of Ceramic Composites ,” NASA Contractor Report...

.... It is shown that local variations in temperature are measured as a thermocouple crosses an active slip line field. Implications for metallographic studies are drawn. plane strain compression tests high temperature high strain rate hot workability strain distribution patterns adiabatic heating...

... method can, under certain circumstances, produce fatigue data which are seriously in error. As a result, this approach subsequently was abandoned at GAC in favor of parallel gage length specimens and axial extensometers. 10 03 1986 22 12 1986 low-cycle fatigue high temperature test...

...PK Liaw; H-R Hartmann; WA Logsdon A sputter deposition technique has been successfully used to fuse atomically a high-temperature DC transducer, in the form of a thin film Krak-Gage ® , directly onto a test specimen for developing fatigue crack propagation rate data. The rates of fatigue crack...

... monotonically rising, sustained, and cyclic loads. This paper contains a description of the design and operation of the system developed to conduct these tests, along with a brief discussion of testing experience and types of results. coal fracture tests hydrogen coal conversion high temperature high...