摘要
旨在预测四步法三维编织纤维增强复合材料矩形截面杆类构件的刚度和阻尼。基于层合板类推法和能量耗散原理，导出了此类构件的各种刚度系数和比阻尼容量计算公式。分析中该复合材料被视为四个单向纤维复合材料部分叠合形成，各单向纤维复合材料部分的单位能量耗散被分解为与σｘ′、σｙ′、σｚ′、τｙ′ｚ′、τｘ′ｚ′、τｘ′ｙ′对应的六个分量。
The objective of this investigation is to predict the siffness and the damping of the rectangular cross section links with 4 step three dimensional braided composite.The formulations for calculating the stiffness coefficients and specific damping capacity are derived.The analysis is based upon the modified classical laminated plate approach and the theory of energy dissipation,which treats the unit cell of the composite as an assemblage of four unidirectional laminas.The sources of energy dissipation of each unidirectional laminae have been divided into six parts with respect to the stresses σ x′ 、σ y′ 、σ z′ 、τ y′z′ 、τ x′z′ 、τ x′y′ in the fiber co ordinate system.
出处
《机械强度》
CAS
CSCD
北大核心
1999年第1期18-21,共4页
Journal of Mechanical Strength
基金
国家自然科学基金
