安定
背景(考古学)
单方面接触
极限(数学)
打滑(空气动力学)
极限载荷
库仑摩擦
结构工程
联轴节(管道)
数学
工程类
数学分析
非线性系统
有限元法
物理
机械工程
地质学
航空航天工程
古生物学
量子力学
作者
Young Ju Ahn,Anders Klarbring,Andrea Spagnoli,Michele Terzano
标识
DOI:10.1016/j.ijsolstr.2022.111470
摘要
When exposed to cyclic quasi-static loading, elastic bodies in contact may develop a favourable condition where slip ceases after a few cycles, an occurrence commonly known as frictional shakedown . If the amplitude of the cyclic load is greater than a so-called shakedown limit , shakedown cannot occur. In this review paper, the validity of shakedown theorems in the context of conforming contacts with à la Coulomb friction is first discussed. Then, an optimisation method for determining the shakedown limit of elastic discrete three-dimensional systems is reviewed. Finally, an incremental Gauss–Seidel algorithm, extended to three-dimensional systems, is here illustrated in details for the first time. The algorithm allows us to describe the transient response of normal-tangential coupled systems under a given cyclic loading scenario, and to determine their possible shakedown depending on the initial conditions. An example concerning a discrete conforming contact problem, where either coupling or uncoupling conditions can be imposed, is illustrated.
科研通智能强力驱动
Strongly Powered by AbleSci AI