Dynamic Mechanical Properties and Modification of J-C Constitutive Model of 6061-T651 Aluminum Alloy

Name: Work Video:
Duration: 3 min 30 s
Yunfei Deng; Yong Zhang; WU Huapeng; Xianzhi Zeng
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'https://openalex.org/W2380984593', 'https://openalex.org/W2809172712', 'https://openalex.org/W2892274477', 'https://openalex.org/W2914307033'], 'related_works': ['https://openalex.org/W4235293705', 'https://openalex.org/W2383621719', 'https://openalex.org/W2373500183', 'https://openalex.org/W2367341505', 'https://openalex.org/W2363832969', 'https://openalex.org/W2362000966', 'https://openalex.org/W2358755447', 'https://openalex.org/W2037778744', 'https://openalex.org/W2022300287', 'https://openalex.org/W2008324934'], 'abstract_inverted_index': {'摘要:': [0], '为合理描述6061-T651铝合金的应力流动行为,利用万能材料试验机和霍普金森压杆,分别进行准静态、高温和高应变率下的材料力学性能测试,获得材料在不同条件下的应力应变曲线。基于试验结果,修正Johnson-Cook本构模型得到MJC(Modified': [1], 'Johnson-Cook)模型,并标定MJC模型各项参数。为校验MJC模型及参数的有效性,利用一级气炮发射直径为5.95': [2], 'mm的圆柱弹体冲击刚性靶的Taylor杆试验以及直径为12.68': [3], 'mm的刚性弹撞击厚度为2': [4], 'mm靶板的试验。最后,采用ABAQUS/Explicit有限元软件建立Taylor杆和弹靶冲击试验的三维模型,基于MJC本构模型进行Taylor杆冲击、以及结合MMC(Modified': [5], 'Mohr-Coulomb)断裂准则进行弹靶冲击的数值模拟计算。研究结果表明,修正的MJC本构模型能够有效地描述6061-T651铝合金材料在大应变、高应变率和高温下材料的应力流动行为和变形行为。': [6]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W3118591470', 'counts_by_year': [{'year': 2024, 'cited_by_count': 1}, {'year': 2023, 'cited_by_count': 2}, {'year': 2022, 'cited_by_count': 2}, {'year': 2021, 'cited_by_count': 1}], 'updated_date': '2025-01-14T08:03:13.787851', 'created_date': '2021-01-18'}
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