00000nam 2200000zi 4500 9.926175 CaOODSP 20231130151835 m o d f cr |n||||||||| 230815e199011uuoncad ob f000 0 eng d CaOODSP eng rda CaOODSP n-cn-bc DR52-4/8-1990E-PDF Wong, J. Y. author. (Jo Yung) Measurement of the shear strength of snow using a bevameter and a hand-held shear device / by J. Y. Wong. Ottawa : Vehicle Systems Development Corporation ; Ralston, Alberta : Defence Research Establishment Suffield, November 1990. 1 online resource (37 pages) : illustrations, charts text txt rdacontent computer c rdamedia online resource cr rdacarrier Contract report (DRES) ; 73/90 "Prepared for Head, Vehicle Mobility Section, Defence Research Establishment Suffield, Department of National Defence, Canada [...] under Contract Serial No. W7702-9-R127/01-XSG". Digitized edition from print [produced by Defence Research and Development Canada]. Includes bibliographical references (pages 34-37). The shear data for snow covers in Fernie, British Columbia obtained using a bevameter and a hand-held shear device were evaluated and compared. It was found that the values of the shear strength parameters derived from data obtained using the hand-held shear device provided by Vehicle Mobility Section, Defence Research Establishment Suffield (DRES) were noticeably different from those obtained using the bevameter. The difficulty in controlling the normal load and the manual reading of the load gauge and spring scale contribute to the uncertainty concerning the reliability of the shear data obtained using the hand-held shear device. The reliability of the data obtained would be greatly dependent upon the skill of the operator. Furthermore, in operation, an external force and not a pure moment is applied to the torque arm to rotate the shear ring of the hand-held device. Shear (Mechanics) Snow mechanics. Tracklaying vehicles Computer simulation. Cisaillement (Mécanique) Mécanique de la neige. Véhicules à chenilles Simulation par ordinateur. Defence Research Establishment Suffield, issuing body. Vehicle Systems Development Corporation, issuing body. Contract report (DRES) 73/90. (CaOODSP)9.926097 PDF 1.47 MB https://publications.gc.ca/collections/collection_2023/rddc-drdc/DR52-4-8-1990-eng.pdf DRES-CR-73/90