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具有T形截面的U形钢板阻尼器滞回性能理论分析与数值模拟

open access: yesJianzhu Gangjiegou Jinzhan
U形钢板阻尼器具有耗能能力良好、能够依靠自身变形耗能,以及性能稳定、制作方便、价格低廉等优点,但是也存在初始刚度小和承载能力低的问题。为此,提出一种具有T形截面的U形金属屈服阻尼器(简称阻尼器)。基于虚功原理和卡斯蒂利亚诺第二定理,建立了阻尼器的屈服承载力和初始刚度理论公式。基于非线性混合强化本构模型和三维延性断裂准则,建立了考虑材料延性断裂的阻尼器有限元模型。重点考察了阻尼器的刚度、屈服承载力、耗能能力和破坏模式等。通过参数分析量化了几何尺寸等参数对阻尼器力学性能的影响。研究表明,阻尼器在刚度 ...
邱灿星, 钱慧娟, 王苑佐
doaj  

[Exploration and clinical application of the "digital and intelligent surgery" diagnosis and treatment workflow for oral and maxillofacial tumors]. [PDF]

open access: yesBeijing Da Xue Xue Bao Yi Xue Ban
DU W   +11 more
europepmc   +1 more source

[Zeta-focal bone lengthening for bone defects after fracture-related infection: a two-case based research]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Aihemaitijiang Y   +5 more
europepmc   +1 more source

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