Limit and shakedown analysis of kirchhoff-love plates under uncertainty of strength

• Tác giả: Ngoc Trinh Tran
• Ngôn ngữ: eng
• Thông tin xuất bản: Tạp chí Khoa học Kiến trúc & Xây dựng, 2023
• Mô tả vật lý: tr.15
• Bộ sưu tập: Báo, Tạp chí
• ID: 337158

Tóm tắt

A new formulation to calculate the shakedown limit load of Kirchhoff plates under stochastic conditions of strength is developed. Direct structural reliability design by chance constrained programming is based on the prescribed failure probabilities, which is an effective approach of stochastic programming if it can be formulated as an equivalent deterministic optimization problem. We restrict uncertainty to strength, the loading is still deterministic. A new formulation is derived in case of random strength with lognormal distribution. Upper bound and lower bound shakedown load factors are calculated simultaneously by a dual algorithm.