Your query returned 2 results.

• Study on Topology Optimization of Truss Structures under Multiple Static Loading Conditions with Nonlinear Behaviour Constraints,
  B.Y. Duan, S.H. Ye and A.B. Templeman
  Paper 7.1 from CCP: 40, ISBN 0-948749-42-3 (1996)
  
• A Non-Linear Solution Procedure for Structures with Strain-Softening Material,
  Y. Duan and I.M. May
  Paper 6.1 from CCP: 22, ISBN 0-948749-24-5 (1994)