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      • Dept. of Computer Engineering - Master's degree
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      •   BUIR Home
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      • Bilkent Theses
      • Theses - Department of Computer Engineering
      • Dept. of Computer Engineering - Master's degree
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      Modeling and animation of brittle fracture in three dimensions

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      Author
      Küçükyılmaz, Ayşe
      Advisor
      Özgüç, Bülent
      Date
      2007
      Publisher
      Bilkent University
      Language
      English
      Type
      Thesis
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      Abstract
      This thesis describes a system for simulating fracture in brittle objects. The system combines rigid body simulation methods with a constraint-based model to animate fracturing of arbitrary polyhedral shaped objects under impact. The objects are represented as sets of masses, where pairs of adjacent masses are connected by a distance-preserving linear constraint. The movement of the objects is normally realized by unconstrained rigid body dynamics. The fracture calculations are only done at discrete collision events. In case of an impact, the forces acting on the constraints are calculated. These forces determine how and where the object will break. The problem with most of the existing fracture systems is that they only allow simulations to be done offline, either because the utilized techniques are computationally expensive or they require many small steps for accuracy. This work presents a near-real-time solution to the problem of brittle fracture and a graphical user interface to create realistic animations.
      Keywords
      Physically based modeling
      Real-time computer animation
      Brittle fracture
      Plastic deformation
      Crack formation
      Dynamics
      Permalink
      http://hdl.handle.net/11693/14577
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      • Dept. of Computer Engineering - Master's degree 508
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