{'fraction_non_alphanumeric': 0.01838235294117647, 'fraction_numerical': 0.0, 'mean_word_length': 5.1525423728813555, '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}}
Analytical and numerical investigation of bending moment coefficient in balanced single lap joints

Abstract The present study concerns with the effect of bending moment coefficient in the stress distribution in a balanced boron/epoxy single lap joints subjected to tensile loading. The main feature of the single lap joint is the eccentric loading path, which results in large deflections of the outer adherend and the overlap, and the joint edge moment or bending moment coefficient at the end of the overlap. Theoretical models such as Goland–Reissner, Oplinger and Hart-Smith are examined in detail for different l/c and η/t ratios. Four different overlap lengths have been analysed. A geometrically non-linear, two-dimensional finite element analysis is also performed to provide useful comparisons with the theoretical analysis. The analytical results mainly prove that the Oplinger's model is the most appropriate for the specific geometry and materials, and the values of the bending moment coefficient are compared with the additional model of Zhao for four different l/c ratios.