{'fraction_non_alphanumeric': 0.015894039735099338, 'fraction_numerical': 0.009271523178807948, 'mean_word_length': 5.3, '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}}
A STUDY OF FAILURE BEHAVIOR OF SPHEROIDAL GRAPHITE CAST IRON WITH NOTCHED TENSILE SPECIMEN BASED ON FRACTURE MECHANICS

The research is conducted to use spheroidal graphite cast iron for steel buildings. The occurrence condition of brittle fracture was investigated by tensile test of tension joint, perforated plate in fracture mechanics, and bending test. The results showed the occurrence of brittle fracture of spheroidal graphite cast iron was relative to fracture critical stress. However, these experiments were only performed in the stress concentration factor 2 and 10. In this study, the relationship between brittle fracture of spheroidal graphite cast iron and fracture critical stress is verified in stress concentration factor range 3.5-9.3.