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Arch structure erection by an additive manufacturing technology under the action of the gravity force

Content Provider	Springer Nature Link
Author	Manzhirov, A. V. Parshin, D. A.
Copyright Year	2015
Abstract	The paper studies the influence of the gravity forces on gradually constructed objects in the field of gravity. The cases of viscoelastic aging and pure elastic materials are considered. A model of erection of a circular (semicircular) arch structure on a smooth rigid horizontal basement by the method of layered thickening of a previously mounted blank structure from inside is developed in the framework of the linear mechanics of accreted bodies. The model takes into account the influence of gravity forces on the erected structure during the entire process of its erection. In addition, the model allows creating prestresses in the accreted structure elements in the process of erection and admits arbitrary time-variable loads on the outer surface of the erected arch. The corresponding essentially two-dimensional problems of mechanics of quasistatic deformation of the considered structure before its accretion, at the stages of continuous accretion, in the pauses between these stages, and after the accretion are posed in the plane strain state approximation. The analytic solutions of these problems are constructed as series and by quadratures, which permits tracing the evolution of the structure stress-strain states at all stages listed above. These studies can be used to analyze objects produced by additive manufacturing technologies.
Starting Page	559
Ending Page	570
Page Count	12
File Format	PDF
ISSN	00256544
Journal	Mechanics of Solids
Volume Number	50
Issue Number	5
e-ISSN	19347936
Language	English
Publisher	Allerton Press
Publisher Date	2015-11-17
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	additive manufacturing technology accretion layered erection thickening reinforcement arch semicircular arch gravity force prestress viscoelasticity aging elasticity design calculation technological stresses analytic solution Mechanics
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Mechanics of Materials

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