利用J 2流动理论各向同性硬化原理，结合离散元方法，建立筒型基础土体本构关系。
The constitutive relationship of bucket foundation was analyzed by the principle of J2 flow theory and isotropic based on a deformable distinct element method.
研究了烘烤温度、烘烤时间和预拉伸应变量对罩式炉退火工艺生产的各向同性钢的烘烤硬化性的影响，并与力学性能相当的冷轧烘烤硬化钢进行了对比。
The effects of baking temperature, baking time and prestrain on the bake hardenability and dent resistance of isotropic sheet steel and BH sheet steel produced by batch annealing were studied.
抗凹陷性测试结果表明，各向同性钢的抗凹陷性低于烘烤硬化钢。
Experiments of dent resistance show that the dent resistance of isotropic steel is poorer than BH steel.
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