Slope constrained topology optimization

  • Petersson J
  • Sigmund O
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The problem of minimum compliance topology optimization of an elastic continuum is considered. A general continuous density-energy relation is assumed, including variable thickness sheet models and artificial power laws. To ensure existence of solutions, the design set is restricted by enforcing pointwise bounds on the density slopes. A finite element discretization procedure is described, and a proof of convergence of finite element solutions to exact solutions is given, as well as numerical examples obtained by a continuation/SLP (sequential linear programming) method. The convergence proof implies that checkerboard patterns and other numerical anomalies will not be present, or at least, that they can be made arbitrarily weak. (C) 1998 John Wiley {&} Sons, Ltd.

Author-supplied keywords

  • Finite elements
  • Slope constraints
  • Topology optimization

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