{'fraction_non_alphanumeric': 0.008389261744966443, 'fraction_numerical': 0.0016778523489932886, 'mean_word_length': 5.56043956043956, '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}}
Holographic interferometric measurements of 3D displacement fields around a fatigue crack and their implementation for J-integral evaluation

Some methodological and metrological problems related to both high-quality fringe patterns recording at a proximity of fatigue crack of different length and following local strain fields determination are the first subject of the paper. The second question considered is a choice of the way of local strains representation in a form which is the most suitable for a determination of fracture mechanics parameters making emphasis on J-integral evaluation.