{'fraction_non_alphanumeric': 0.015473887814313346, 'fraction_numerical': 0.0, 'mean_word_length': 5.7272727272727275, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
In-situ evaluation of composite structural performance in presence of high stress/strain gradients using multi-axis fiber grating strain sensors

Multi-axis fiber grating strain sensors have been used to quantitatively measure axial strain and temperature, transverse strain and transverse strain gradients in composite weave structures. This paper overviews the multi-axis fiber optic grating strain sensors and how they can be applied to measuring multidimensional strain fields interior to complex composite parts.