A hybrid explicit solution technique for quasi-static transients

Conference · Sun Dec 01 00:00:00 EST 1996

OSTI ID:404159

Sauve, R G; Metzger, D R ^[1]

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1. Ontario Hydro Technologies, Toronto, Ontario (Canada)

In certain instances, such as in the modeling of manufacturing process, undesirable dynamic effects may accompany the use of an explicit transient solution, while the use of full dynamic relaxation is inefficient for this class of problem due to critical damping. In this paper, an approach that merges the salient features of dynamic relaxation with those of the fully explicit solution, is presented. The key objective of the method is the removal of unwanted dynamic (e.g., inertial) effects, while providing for a transient kinematic loading history. This work focuses on the development of an adaptive mass algorithm consistent with specified damping and time step for use within the framework of explicit time integration. The paper describes the hybrid solution formulation and the implementation of the proposed algorithm. Applications include an experimental punch test used for material characterization and a rolled joint expansion manufacturing process used for installation of tubes in steam generators, both involving three-dimensional finite deformation.

• OSTI ID: 404159
• Report Number(s): CONF-960706-; ISBN 0-7918-1773-3; TRN: 97:000391
• Resource Relation: Conference: American Society of Mechanical Engineers (ASME) pressure vessels and piping conference, Montreal (Canada), 21-26 Jul 1996; Other Information: PBD: 1996; Related Information: Is Part Of Computer technology -- 1996: Applications and methodology. PVP-Volume 326; Hulbert, G.M. [ed.] [Univ. of Michigan, Ann Arbor, MI (United States)]; Hsu, K.H. [ed.] [Babcock and Wilcox, Barberton, OH (United States)]; Lee, T.W. [ed.] [FMC Corp., Santa Clara, CA (United States)]; Nicholas, T. [ed.] [USAF Wright Laboratory, Wright-Patterson AFB, OH (United States)]; PB: 217 p.
• Country of Publication: United States
• Language: English

Related Subjects

99 MATHEMATICS
COMPUTERS
INFORMATION SCIENCE
MANAGEMENT
LAW
MISCELLANEOUS
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES
22 NUCLEAR REACTOR TECHNOLOGY
MATERIALS TESTING
STEAM GENERATORS
TUBES
INSTALLATION
NUCLEAR POWER PLANTS
NUMERICAL ANALYSIS
ALGORITHMS
RESIDUAL STRESSES
JOINTS
CALCULATION METHODS
MECHANICAL VIBRATIONS