MEASUREMENT BY LASER GENERATED ULTRASOUND OF BOTH STIFFNESS COEFFICIENTS AND VISCOSITIES OF AN ISOTROPIC POLYMER MATERIAL

机译：各向异性聚合物材料的刚度系数和粘度的激光超声测量

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Laser ultrasonic techniques are used to generate and detect ultrasonic wave through a PVC polymer material without any contact to the specimen. A parametric identification process is used to measure both the stiffness and viscosity tensors of the viscoelastic medium. The method shows promises for the characterization of the stiffness tensor of thin composite materials, when mode identification is difficult, or when echoes overlapping occurs. These two phenomena are limiting the use of identification methods that require the accurate measurement of modes arrival dates.

机译：激光超声技术用于通过PVC聚合物材料生成和检测超声波，而无需与样品接触。参数识别过程用于测量粘弹性介质的刚度和粘度张量。当模式识别困难或出现回声重叠时，该方法显示出表征薄复合材料刚度张量的希望。这两种现象限制了识别方法的使用，该方法要求对模式到达日期进行准确的测量。

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来源
《Annual Symposium on Quantitative Nondestructive Evaluation; 19980719-24; Snowbird,UT(US)》|1998年|P.1257-1264|共8页
会议地点 SnowbirdUT(US)
作者
F. Reverdy; B. Audoin;
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作者单位

Universite Bordeaux I Laboratoire de Mecanique Physique, UPRES.A C.N.R.S. 5469 351 Cours de la Liberation 33405 Talence cedex, France;

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原文格式 PDF
正文语种 eng
中图分类无损探伤仪器;
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专利

1. Measurement by LASER-Generated Ultrasound of Four Stiffness Coefficients of an Anisotropic Material at Elevated Temperatures [J] . B. Audoin, C. Bescond Journal of Nondestructive Evaluation . 1997,第2期

机译：在高温下用激光产生的各向异性材料的四个刚度系数进行超声测量
2. Measurement by Laser Generated Ultrasound of the Stiffness Tensor of an Anisotropic Material [J] . C. Bescond, B. Audoin, M. Deschamps, Acustica united with acta acustica: the journal of the European Acoustics Association (EEIG) . 2002,第1期

机译：激光产生的各向异性材料刚度张量的超声测量
3. Acoustic waves generated by laser in an anisortropic medium:application to the recovering of stiffness coefficients of composite materials [J] . 自然科学进展（英文版） . 1996,第004期

机译：各向异性介质中激光产生的声波：在复合材料刚度系数恢复中的应用
4. MEASUREMENT BY LASER GENERATED ULTRASOUND OF BOTH STIFFNESS COEFFICIENTS AND VISCOSITIES OF AN ISOTROPIC POLYMER MATERIAL [C] . F. Reverdy, B. Audoin Annual Symposium on Quantitative Nondestructive Evaluation . 1999

机译：通过激光产生的超声波的超声波的刚度系数和各向同性聚合物材料的粘度
5. Measurements of viscosity, velocity slip coefficients and tangential momentum accommodation coefficients for gas mixtures using a spinning rotor gauge. [D] . Bentz, Julie A. 1999

机译：使用旋转转子规测量气体混合物的粘度，速度滑移系数和切向动量调节系数。
6. Effective spring stiffness for a periodic array of interacting coplanar penny-shaped cracks at an interface between two dissimilar isotropic materials [O] . Huseyin Lekesiz, Noriko Katsube, Stanislav I. Rokhlin, -1

机译：在两种不同的各向同性材料之间的界面处相互作用的共面便士形裂纹的周期性阵列的有效弹簧刚度
7. Measurement by Laser Generated Ultrasound of Both Stiffness Coefficients and Viscosities of an Isotropic Polymer Material [O] . Reverdy, F., Audoin, B. 1999

机译：各向同性聚合物材料的刚度系数和粘度的激光超声测量
8. Direct Measurement of the Temperature-Dependent Piezoelectric Coefficients ofComposite Materials by Laser Doppler Vibrometry [R] . Rittenmyer, K. M., Dubbelday, P. S. 1992

机译：激光多普勒振动测量直接测量复合材料的温度相关压电系数

MEASUREMENT BY LASER GENERATED ULTRASOUND OF BOTH STIFFNESS COEFFICIENTS AND VISCOSITIES OF AN ISOTROPIC POLYMER MATERIAL

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