In this article we present an opto‐thermo‐mechanical characterization of isotactic polypropylene monofilament during failure by fracture. The digital photoelasticity, the two‐beam Pluta polarising interference microscope and the computed tomography are used to provide quantitative data and visual models of the fracture regions of isotactic polypropylene fibers suffering failure by fracture at different thermal and mechanical conditions. Birefringence values and the intrinsic stress‐anisotropy are measured at the fracture surface. 3D models of the fracture regions are reconstructed. Photoelastic patterns and two‐beam interferograms are included for illustration.

中文翻译：

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等规聚丙烯纤维的分形表征

在本文中，我们介绍了断裂过程中等规聚丙烯单丝的光热机械特性。使用数字光弹性，两束Pluta偏振干涉显微镜和计算机断层摄影术，可提供等规聚丙烯纤维在不同热和机械条件下断裂而断裂的断裂区域的定量数据和可视化模型。在断裂表面测量双折射值和固有应力各向异性。重建骨折区域的3D模型。包括光弹性图案和两光束干涉图。