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Behavior of Gas Bubbles in Viscoelastic Materials in a Creep Process

机译:蠕变过程中粘弹性材料中气泡的行为

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摘要

This paper investigates the dynamic behavior of a spherical bubble situated in viscoelastic (or elasticoviscous) materials in a creep process. Both the diffusion of the dissolved gas in the material and the thermodynamic behavior of the gas inside the bubble are taken into account. The generalized model of the Kelvin or Maxwell type which consists of the spring, dashpot, and Kelvin units is used to describe the creep behavior of the material under combined stresses. The growth or shrinkage of the gas bubble may be induced by a change in the dissolved gas concentration in the material, a change in the external load applied to the material, or a combination of both. Numerical results are obtained for simpler models and the effects of their parameters on the radius‐time history of a bubble shrinking in an undersaturated solution or growing in an oversaturated solution are disclosed.
机译:本文研究了蠕变过程中位于粘弹性(或弹性粘滞)材料中的球形气泡的动力学行为。既要考虑溶解气体在材料中的扩散,又要考虑气泡内部气体的热力学行为。开尔文或麦克斯韦类型的通用模型由弹簧,减震器和开尔文单元组成,用于描述材料在组合应力下的蠕变行为。气泡的增长或收缩可能是由材料中溶解气体浓度的变化,施加到材料上的外部负载的变化或两者的组合引起的。对于更简单的模型,可以获得数值结果,并且揭示了其参数对气泡在不饱和溶液中收缩或在过饱和溶液中生长的半径时间历史的影响。

著录项

  • 来源
    《Journal of Applied Physics》 |1972年第7期|共5页
  • 作者

    Yang Wenamp;

  • 作者单位

    Department of Mechanical Engineering, The University of Michigan, Ann Arbor, Michigan 48104;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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