山东大学学报 (工学版) ›› 2022, Vol. 52 ›› Issue (6): 96-104.doi: 10.6040/j.issn.1672-3961.0.2021.596
• 土木工程 • 上一篇
滕越1,2,扈萍1,2*,王君鹏1,2,张西文1,2
TENG Yue 1,2, HU Ping1,2*, WANG Junpeng1,2, ZHANG Xiwen1,2
摘要: 为论证动态空心圆柱扭剪仪实现椭圆形应力路径的可行性,推导典型荷载加载曲线,通过试验与数值结合的方法予以分析。结果表明:双向加载时,保持内外围压恒定且相等,可实现椭圆应力路径;保持内围压恒定,三向变载时,可实现保持中主应力系数恒定或平均主应力恒定的椭圆应力路径加载;四向变载时,可实现对中主应力系数、平均主应力的同时控制。空心圆柱扭剪仪可以很好地实现椭圆形应力路径,且可以对主要应力参数进行控制。试样变形将引起实际应力误差,导致应力路径偏移,因此加载前应对试样刚度合理估计以提高加载质量。
中图分类号:
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