Space-resolved diffusing wave spectroscopy measurements of the macroscopic deformation and the microscopic dynamics in tensile strain tests
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- 作者：Med-Yassine Nagazia ; b ; mohamed-yassine.nagazi@umontpellier.fr" class="auth_mail" title="E-mail the corresponding author ; Giovanni Brambillab ; Gé ; rard Meunierb ; Philippe Marguerè ; sc ; Jean-Noë ; l Pé ; rié ; c ; Luca Cipellettia ; luca.cipelletti@umontpellier.fr" class="auth_mail" title="E-mail the corresponding author
- 关键词：Tensile test ; Light scattering ; Diffusing wave spectroscopy ; Plasticity
- 刊名：Optics and Lasers in Engineering
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：88
- 期：Complete
- 页码：5-12
- 全文大小：938 K
文摘
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Space-resolved multiple dynamic light scattering probes polymers under stress.
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A spatial map of the strain field is retrieved.
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A spatial map of the microscopic dynamics under stress is retrieved.
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Plastic rearrangements can be distinguished from reversible affine motion.
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Material failure is detected at a microscopic level, thus at a very early stage.