Author: Arnold D. KerrPublisher:
ISBN:
Category : Building
Languages : en
Pages : 24
Book Description
On the Determination of Horizontal Forces a Floating Ice Plate Exerts on a Structure
Author: Arnold D. KerrPublisher:
ISBN:
Category : Building
Languages : en
Pages : 24
Book Description
On the Determination of Horizontal Forces a Floating Ice Plate Exerts on a Structure
Author: Arnold D. KerrPublisher:
ISBN:
Category : Building
Languages : en
Pages : 9
Book Description
This report first discusses the general approach for calculating the horizontal forces an ice cover exerts on a structure. Ice force determination consists of two parts: (1) the analysis of the in-plane forces assuming that the ice cover remains intact and (2) the use of a failure criterion, since an ice force cannot be larger than the force capable of breaking up the ice cover. For an estimate of the largest ice force, an elastic plate analysis and a failure criterion are often sufficient. A review of the literature revealed that, in the majority of the analyses, it is assumed that the failure load is directly related to a 'crushing strength' of the ice cover. However, observations in the field and tests in the laboratory show that in some instances the ice cover fails by buckling. This report reviews the ice force analyses based on the buckling failure mechanism and points out their shortcomings. The report then presents a new method of analysis which is based on the buckling mechanism. (Author).
On the Buckling Force of Floating Ice Plates
Author: Arnold D. KerrPublisher:
ISBN:
Category : Buckling (Mechanics).
Languages : en
Pages : 7
Book Description
The calculation of the largest horizontal force a relatively thin floating ice plate may exert on a structure requires the knowledge of the buckling load for this floating plate. In the published literature on the stability of continuously supported beams and plates, it is usually assumed that this buckling force corresponds to the lowest bifurcation force p sub cr. However, recent studies indicate that, generally, this is not the case, and this report clarifies the situation of floating ice plates. This problem is first studied on a simple model that exhibits the buckling mechanism of a floating ice plate but is amenable to an exact nonlinear analysis. This study shows that, depending on the ratio of the rigidities of the 'liquid' and 'plate', the post-buckling branch may rise or drop away from the bifurcation point. Thus p sub cr may or may not be the actual buckling load. It is also shown that when lift-off of 'plate' from the 'liquid' takes place, the actual buckling load may drop substantially. This study is followed by analysis of a floating compressed semi-infinite plate with a straight free edge, assuming that there is no life-off. It is found that for this case there always exists a buckling load that is lower than p sub cr. According to the obtained results, the value p sub cr should be used with caution as a buckling load for floating ice plates. It is suggested that the buckling load be determined using the post-buckling equilibrium branch of the plate, taking into considertion the possibility of lift-off of the ice cover from the liquid base. (Author).
On the Buckling Force of Floating Ice Plates
Author: Arnold D. KerrPublisher:
ISBN:
Category : Buckling (Mechanics).
Languages : en
Pages : 20
Book Description
CRREL Technical Publications
Author: Cold Regions Research and Engineering Laboratory (U.S.)Publisher:
ISBN:
Category : Engineering
Languages : en
Pages : 178
Book Description
Technical Abstract Bulletin
Author: Government Reports Announcements & Index
Author: Monthly Catalog of United States Government Publications
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1060
Book Description
Monthly Catalogue, United States Public Documents
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1102
Book Description
Author: