Abstract
This chapter provides a detailed description of the experiments performed in this work. It starts with a section on the material preparation. The major part deals with the synchrotron scattering setups, which were used in wide or small angle transmission geometry, coupled with various tensile testing machines. The computer processing of the scattering data to extract quantities like the degree of crystallinity, orientation, cavitation volume is described. Additional methods, e.g., mechanical testing, optical dilatometry, and in-situ tensile testing in a scanning electron microscope are covered.
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Notes
- 1.
Few preparatory experiments were done at a lab source. This will not be described in detail.
- 2.
For comparison, a small number of notched pure shear specimens (Fig. 3.3c) were scanned as well.
- 3.
In other words, one cannot be sure whether the root of the notch is perfectly aligned along the beam on a size scale of 20 \({\upmu }\)m.
- 4.
The \(q\)-space is commonly defined with \(q_3\) being the tensile axis, and \(q_1\) and \(q_2\) being orthogonal to \(q_3\). In a fiber-symmetric sample, \(q_1 = q_2 = q_{12}\).
- 5.
In preliminary experiments, scattering patterns acquired at two different detector distances were merged to extend the region of scattering vectors, but this method was not used for the final data evaluation due to the insensitivity of the change in \(Q\) with respect to the integration limits and due to the considerable experimental effort of the method.
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Brüning, K. (2014). Experimental. In: In-situ Structure Characterization of Elastomers during Deformation and Fracture. Springer Theses. Springer, Cham. https://doi.org/10.1007/978-3-319-06907-4_3
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