TY - EJOU AU - Wu, Di AU - Gao, Wei AU - Song, Chongmin AU - Luo, Zhen TI - Mathematical Programming Approaches for Interval Structural Behaviour and Stability Analysis T2 - Computer Modeling in Engineering \& Sciences PY - 2015 VL - 108 IS - 5 SN - 1526-1506 AB - Two novel mathematical programming approaches are proposed to separately assess non-deterministic behaviour and stability of engineering structures against disparate uncertainties. Within the proposed computational schemes, uncertainties attributed by the material properties, loading regimes, as well as environmental influences are simultaneously incorporated and modelled by the interval approach. The proposed mathematical programming approaches proficiently transform the uncertain structural analyses into deterministic mathematical programs. Two essential aspects of structural analysis, namely linear structural behaviour and bifurcation buckling, have been explicitly investigated. Diverse verifications have been implemented to justify the accuracy and computational efficiency of the proposed approaches through practically motivated numerical examples. KW - Structural behaviour KW - Buckling KW - Uncertainty KW - Interval analysis KW - Structural safety KW - Mathematical programming DO - 10.3970/cmes.2015.108.331