000			01786aab a2200217 4500
008			231009b20232023|||br||| |||| 00| 0 eng d
022			_a0889-3241
100			_aYuan, Ping _9878596
100			_aWang, Lei _9165799
100			_aFloyd, Royce W. _9171311
245			_aGeneration of Optimal Load Paths for Corroded Reinforced Concrete Beams—Part I: Automatic Stiffness Adjustment Technique
300			_a103-114 p.
520			_aThe conversion of material density during nonlinear topologyoptimization (NTO) results in the excessive distortion of minimumdensity elements. An automatic stiffness adjustment technique is first proposed to overcome numerical instability. A multiproportional growth strategy of the minimum-density element stiffness is given according to the change of maximum strain. On this basis, a generation method of optimal load paths for corroded reinforced concrete (CRC) beams is presented by considering material properties loss and bond degradation. The design sensitivity in the form of corrosion-damaged strain energy is then derived based on the adjoint variable method. Finally, the effectiveness of the proposed method is illustrated by numerical examples. The load paths of CRC beams under various corrosion levels are studied. Results show that the proposed method can reasonably generate the load paths of CRC beams without the numerical instability.
650			_aAutomatic Stifiness Adjustment _9878597
650			_aCorroded Reinforced Concrete (RC) Beams _9878220
650			_aNonlinear Topology Optimization _9878221
650			_aOptimal Load Paths _9878222
773	0		_x08893241 _dFarmington Hills,MI, U.S.A : American Concrete Institute _tACI Structural Journal
856			_uDOI:10.14359/51738750
942			_2ddc _n0 _cART _o14993 _pMr. Muhammad Rafique Al Haj Rajab Ali (Late)
999			_c814265 _d814265