Showing papers on "Discontinuous Deformation Analysis published in 1995"
TL;DR: In this paper, a complete formulation of the discontinuous deformation analysis for a particulate medium consisting exclusively of two-dimensional disks bounded by rigid boundaries is presented, and the resulting computer code, DDAD, can be used to efficiently perform analyses; it serves as a versatile tool for modeling complex behavior of granular materials.
Abstract: This paper presents a complete formulation of the discontinuous deformation analysis for a particulate medium consisting exclusively of two-dimensional disks bounded by rigid boundaries. Particles are modeled as circular, rigid disks, and interactions, which are governed by Coulomb friction, are controlled through the use of contact normal and shear springs. The rigid boundaries can be fixed or assigned a velocity-time relationship; a variety of displacement constraints and damping terms are also modeled. Dynamic equilibrium is fully satisfied, and the no penetration and no tension interparticle constraints are essentially maintained throughout the analysis. The resulting computer code, DDAD, can be used to efficiently perform analyses; it serves as a versatile tool for modeling the complex behavior of granular materials.
69 citations
TL;DR: In this article, the authors describe the DDA as a "DDA" system, which is used to deal with DDA-related issues, such as: 主として岩盤の大変形挙動解析に用いられている.
Abstract: 本研究では, 主として岩盤の大変形挙動解析に用いられている不連続変形法 (DDA) による倒壊シミュレーションを, 実存RC構造物の発破解体工事の倒壊設計に適用し, 適切と思われる解析結果を得た. 本手法により, 時系列的な構造系の変化すなわち倒壊過程および最終崩壊状況を予測し, 段発発破計画の設計資料としたので, その概要を報告する.