1) maximum reduction
极限变形程度
1.
Theory research on the maximum reduction of deep tine taper hole formed by open-die cold extrusion;
深小锥孔挤压成形极限变形程度理论判据建立
2.
In the paper, maximum reduction when deep tine taper hole is formed by open-die extrusion is defined.
给出了深小锥孔件开式冷挤压成形时极限变形程度的定义,建立了变形区非稳态连续速度场;利用上限原理得到了极限变形程度的理论判据。
3.
The theoretical maximum reductions under the condition of all combinations of the parameters are obtained,which is verified by the experiments,based on the maximum reduct.
提出了极限变形程度的判别准则 ,借助优化方法得到各参数组合下的理论极限变形程度 ,并进行了实验验证。
2) Prediction of maximum reduction
极限变形程度预测
3) limit deformation
极限变形
1.
Research on crack resistance of new block wall based on limit deformation theory;
基于极限变形理论的新型砌块墙体抗裂性能研究
4) ultimate deformation
极限形变
5) ultimate deformation
极限变形率
1.
In dealing with the ultimate deformation,the author not only takes thetraditional wltimate tensile stress into account,but takes it into consideration that the cylin-der wall in the outlet section of the die should be kept in compressive stress state in order toguarantee the precision of the cylindrical workpiece.
本文分析了变薄拉深中材料的应力状态,并采用上限法导出了筒壁拉应力解析式,提出了一种新的极限变形率。
6) ultimate drift ratio
极限变形角
1.
Probabilistic characteristics of ultimate drift ratio of R.C. column and its application in reliability analysis of controlled structures;
钢筋混凝土柱极限变形角的概率特性及其在有控结构大震可靠度分析中的应用
补充资料:变形程度
变形程度
deformation degree
b ianxing ehengdu变形程度(deformation degree)金属塑性加工时工件变形大小的定量指标,用变形前后工件的尺寸计算,有绝对变形程度、相对变形程度、延伸系数和对数应变4种表示法。 绝对变形程度又称变形量,是工件变形前后尺寸之差,如平辊轧制时的压下量以及管材生产时的减径量和减壁量。相对变形程度又称变形率,是工件变形前后横截面面积之差除以变形前的横截面面积,如压下率、延伸率和面积减缩率。 延仲系数定义为工件变形前后横截面面积或长度之比。随着变形程度的增大,延伸系数由l增向oo,其特点是在多道次变形时,总延伸系数是各道次延伸系数之积。延伸系数拌与变形率。的换算式是 11 £一1一于,拌”幸二二 召’1一C 对数应变即真实应变,见真应力一真应变曲线。 〔姿燕雄)
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参考词条