提出了基于脉冲电磁力随焊控制焊接应力及变形新方法。
New idea to control welding residual stress and distortion with trailing impactive electromagnetic force was given.
根据宽板弯曲过程中的变形与应力分布特征,提出了一种计算弯曲过程中板料厚度随弯曲程度变化的新的近似求解方法。
A new approximate solution to thickness reduction of bending sheet is presented by considering the characteristics of deformation and stress distribution.
随焊冲击碾压是一种控制薄壁结构焊接应力变形、防止热裂纹的新方法。
Weld with trailing impactive rolling (WTIR) is a new technique to reduce the residual stress and distortion and prevent hot cracking of thin-walled structure.
根据宽板弯曲过程中的变形与应力分布特征,提出了一种计算弯曲过程中板料厚度随弯曲程度变化的新的近似求解方法。
A new approximate solution to figuring out thickness reduction in bending sheets is presented in views of the characteristics of deformation and stress distribution.
试验结果表明,流变应力和峰值应变随变形温度的降低和应变速率的提高而增大。
The results show that the flow stress and peak strain increase with either increasing strain rate or decreasing deformation temperature.
在形变速率相同的条件下,随变形温度的升高,试样内部最大形变抗力及最大应力呈下降趋势。
The inner maximum resistance force and the maximum stress of the specimen decreases as the deformation temperature increasing.
对压缩永久变形和压缩应力松弛性能指标进行经验直线化外推估算,得出特定温度下的性能随老化时间变化的动力学经验估算方程。
With calculating property index of compression set and stress relaxation, it obtains a calculation formulation that property changes along with aging time at the special temperature.
结果表明:实验条件下,流变应力及峰值应变随变形温度的降低和应变速率的提高而增大。
The results show that the flow stress and peak strain increase with increasing strain rate or decreasing deformation temperature.
随应变速率升高,真应力-真应变曲线特征从“平缓”型向“锯齿”型转变,材料热变形软化特征增强。
As the rise of the strain rate, the feature of the true stress - true strain curve changed from "flat" to "serration", and the thermal deformation softening feature was reinforced.
流变应力和峰值应变随变形温度的升高和应变速率的降低而减小;
The results show that the flow stress and peak strain of 300M steel increase with the increase of strain rate or the decrease of deformation temperature.
根据损伤力学的基本原理,利用测量弹性模量和观察金相的方法,研究了在拉拔应力状态下,随变形量的不断增大,材料的损伤特性。
Based on the damage mechanics and metallography analysis, the characteristics of plastics damage of steel wire under high strain deformation were researched.
当差应力达到岩石的屈服应力时,扩容和非线性应变开始。此外,随应力水平的增加,扩容和非线性变形呈幂函数形式增加。
The volume dilatation and the non-linear deformation of rock originated, when the differential stress equals to the yield point of rock.
试样内部各部位的应力大小分布不均匀,随应变速率的增大,最小应力值由自由变形的鼓形区域逐步向心部移动;
The effective stress of specimen is inhomogeneous. As the strain rate increases, the minimum stress value moves from the drum-shaped region to the heart of specimen.
稳态项是金属材料在亚热变形过程中的稳态流变应力模型,而修正项是指流变应力随应变的变化而变化的部分。
The steady state term is the steady flow stress model of metal materials in the semi-hot forming process, and it is a model related to the Z parameter;
结果表明:弹性模量和流变应力随变形温度的升高而降低,而流变应力随应变速率的提高而增大。
Results show that the elastic modulus and flow stress decreases with the increase of temperature, while the stress rises with the strain rate increases.
结果表明,稻田花岗岩的抗拉强度和变形常数随拉应力的作用方向不同而发生明显变化。
The experimental results reveal that the tensile strength and deformation properties of the Inada granite vary with the direction of tensile load.
结果表明,稻田花岗岩的抗拉强度和变形常数随拉应力的作用方向不同而发生明显变化。
The experimental results reveal that the tensile strength and deformation properties of the Inada granite vary with the direction of tensile load.
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