نتایج جستجو برای: shear strength reduction method

تعداد نتایج: 2268598  

Abdolhamid Azizi Pooya Bahrami,

In this study accumulative roll bonding (ARB) process up to 8 Cycles (equivalent strain of 6.4) at ambient temperature was used in order to improve the mechanical properties of Commercial purity titanium (CP-Ti).Several experiment has been done and Mechanical properties of specimen has been discussed. For investigating optical microscope punching and hardness test were utilized. This is the fir...

Abdolhamid Azizi Pooya Bahrami,

In this study accumulative roll bonding (ARB) process up to 8 Cycles (equivalent strain of 6.4) at ambient temperature was used in order to improve the mechanical properties of Commercial purity titanium (CP-Ti).Several experiment has been done and Mechanical properties of specimen has been discussed. For investigating optical microscope punching and hardness test were utilized. This is the fir...

Journal: :international journal of environmental research 0
p. hyun il general manager, institute of technology, samsung c & t, 23th fl., samsung corp. bldg. 1321-20, seocho2-dong, seocho-gu, seoul, korea p. borinara assistant professor, department of technology, illinois state university, normal, il 61709 usa k.d. hong principal researcher, research center, kepri, kepco. daejon-si, korea

geotechnical investigations of waste fills are rarely undertaken, and consequently the geotechnical community has little knowledge of their engineering properties. in this study, a geotechnical testing program was conducted to evaluate the engineering properties of old municipal solid waste sampled in whamyung msw landfill site, busan, korea. the conducted tests included water content, specific...

2006
Jose L. Palacios Edward C. Smith Huidong Gao Joseph L. Rose Paul Morrow

A new conceptual non-thermal anti-icing system for helicopter rotor blades is introduced. Theoretical calculations predict that certain ultrasonic modes generated by horizontal shear waves produce sufficient interface stresses between a host structure and ice to remove the accreted ice layer. Experimentally obtained ultrasonic shear dispersion curves are compared to theoretical predictions for ...

2004
Andreas T. Echtermeyer Truls S. Ekeberg Odd E. Sund

The use of composite materials offshore has increased over the last years. Long term performance of a component is an important consideration for users and authorities when evaluating a composite solution. Long term data of composites are widely available for many material combinations. Data in sea water environment are more difficult to find. However, most of the available long-term data is re...

In the present research, behavior of SPSPs with two rectangular openings and effect of strengthening different subpanels with various stiffener arrangements is investigated. In the next step, to investigate the effect of changing opening width on the trend of degradation shear stiffness and strength of the panel, the opening width is changed. In the third step, to study the effect of changing o...

2002
Sotiris Psomas Sotirios Psomas

This thesis presents experimental work on foam/sand mixtures carried out in the Civil The first chapter deals with basic aspects of soil conditioning agents and their application to tunnelling, and provides an understanding of the fundamentals of foam behaviour. An introduction to the problems encountered in tunnelling is given. A brief study of foams and their properties is presented and the r...

Journal: :آب و خاک 0
خلیل مقدم خلیل مقدم افیونی افیونی جلالیان جلالیان عباسپور عباسپور دهقانی دهقانی

abstract surface soil shear strength is an effective parameter in soil erosion and runoff modeling, and known as soil erodibility index. this study was conducted to investigate and predict soil shear strength in central zagros region using multiple linear regressions (mlr). the study site was selected in rangeland and degraded-rangeland landuse with an area of 23562 ha. based on the maps of geo...

Journal: :journal of dentistry, tehran university of medical sciences 0
soodabeh sadat sajadi assistant professor, department of orthodontics, arak university of medical science, arak, iran. gholamreza eslami amirabadi assistant professor, department of orthodontics, dental school, shahed university, tehran, iran. sepideh sajadi assistant professor, department of endodontics, arak university of medical science, arak, iran.

bond failure of brackets during orthodontic treatment is a common problem; which results in treatment interference, increased treatment time and prolonged clinical time for rebonding of failed brackets. the purpose of this study was to evaluate the effects of coca-cola and a non-alcoholic beer on the shear bond strength and adhesive remnant index (ari) of orthodontic metal brackets in vitro.eig...

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