粘弹性泊松比与弹性泊松比分析  

An Analyses of Viscoelastic Poisson's Ratio and Elastic Poisson's Ratio

作　　者：沈庭芳[1] 

机构地区：[1]北京理工大学应用物理系,北京100081

出　　处：《北京理工大学学报》1999年第6期682-685,共4页Transactions of Beijing Institute of Technology

摘　　要：目的　对比分析粘弹性泊松比与弹性泊松比的不同力学概念、精确表达式与诊断技术 .方法　利用弹性与粘弹性的对应原理和积分变换 ,由弹性泊松比分析推导出粘弹性泊松比表达式 .结果与结论　获得 4种粘弹性泊松比的精确公式 .分析了弹性与粘弹性泊松比之间的表征。Aim To study the difference in mechanical concepts, various accurate expressions and diagnostic technology of viscoelastic and elastic Poisson's ratios. Methods With the aid of correspondence principle of elasticity and viscoelasticity and the integral transform relations the accurate expressions of viscoelastic Poisson's ratio were derived based on some expressions of elastic Poisson's ratio. Results and Conclusion Four accurate expressions of viscoelastic Poisson's ratio were obtained. Some questions of formulation and diagnosis for viscoelastic and elastic Poisson's ratio were analyzed.

关 键 词：泊松比 材料力学 粘弹性介质力学 粘弹性 弹性 

分 类 号：O345[理学—固体力学] TB301[理学—力学]