Compared with the numerical simulating calculation, the result of software analysis has the basic same deformation time point but a different deformation length of 2.62%;

软件分析结果与数值模拟计算对比,变形时刻基本相同,变形长度相差2.62%;

And the values of spin, parity and deformation length are determined byperforming collective DWBA calculation, for two energy levels whose excitation enersies are 2.558MeV and 2.607MeV respectively.

Not only the too high load but also the too big tensile deformation length can slow the restoring velocity and result in incomplete restoring deformation and then curtail the repeating work life of SMA spring.

This paper also discusses on the affect of impact energy ,the transient deformation length of materials changing along with time and gets the result that we can get the change length of section area from the transient deformation change length .

For i.d 32 mm, o. d 42 mm bulging coil and i.d 56 mm, o. d 66 mm tube-compression coil, the proportion curves of uniform deformation have been obtained, and validated by theory and trials.

the die division plane is setting on the flange in the forming step and minor deforming length-wall thickness ratio is adopted to avoid plastic instability of the inner wall.

The factors influencing the deformation of hammer have been found out and the strategies for the control of the deformation are discussed. The plastic big deformation mutation point of curve have been found out between engineering strain and impact speed.

The mathematical model for the relations between the hammer length after deformation and that before deformation at arbitrary time provides the theoretical foundation for the study of the plastic deformation of the dropping hammer.

A novel method based on deformable length of elastic element control to realize the softness display for vitual operation and teleopertion is proposed,and the real time softness display interface device has been developed.

They were then used to generate form factors for both single and mutual inelastic scattering as well as distorted waves for DWBA description of inelastic scattering considering the same deformation length for all form factors.

Rubbing of the bulk powder produced thin oriented films, and a deformation length scale dependence was seen.

The Froude number squared is an estimate of the ratio of surface deformation length scale to the inertial length scale of the flow.

The deformation length, max d for each cycle was chosen according to the martensite fraction of the AF5 wires.

The key to successful cross rolling is to understand fully the distribution of deformation and the mechanism of crack formation at the centre of the rolled material as well as the optimum parameters for the technological process. With these points in mind, the authors carried out investigations by means of microscopic examinations and hardness tests on the distribution of deformation and the mechanism of crack formation at the centre of certain steel specimens at various temperatures, various rates of deformation,...

The key to successful cross rolling is to understand fully the distribution of deformation and the mechanism of crack formation at the centre of the rolled material as well as the optimum parameters for the technological process. With these points in mind, the authors carried out investigations by means of microscopic examinations and hardness tests on the distribution of deformation and the mechanism of crack formation at the centre of certain steel specimens at various temperatures, various rates of deformation, different ratios between the length of the plastic zone and the specimen diameters as well as at different lengths of material at both ends of the plastic zone.As the deformation of metals in cross rolling is in many ways similar to that in cross forging, the authors carried out experiments on the cross forging of aluminium and lead which had been marked with concentric circles at the ends in a 35-ton mechanical press at room temperatures, and then compared the results thus obtained with those in the cross rolling of carbon and alloy steels.The results of these experiments show that:(1) With only one strike of the press in cross forging, the deformation is greatest at the surface and diminishes towards the centre of the specimen. When reduction is small, only elastic deformation occurs at the centre.(2) With several strikes of the press on rotating specimens, the deformation at the surface and in the centre is greater than that in the intermediate zone. When reduction is very small, plastic deformation also does not penetrate into the centre.(3) Similar to cross forging, the deformation of metal in cross rolling is also greatest at the surface, less at the centre and least in the intermediate zone. This distribution of deformation remains practically unchanged in different metals and various rolling temperatures as well as under other testing conditions mentioned above. Under conditions of the present experiments, when reduction is small, the deformation at the centre may be only elastic. In this case, the distribution of deformation is similar to that with only one strike of the press in cross forging.In cross rolling, the greater the reduction, the higher the rolling temperature, the higher the rate of deformation, the greater the ratio between the length of the plastic zone and the specimen diameter, and the shorter the length of the material on either side of the plastic zone, the greater is the tendency for crack formation at the centre. Alloy steels seem less liable to crack formation than carbon steels.

Several new energy levels in?160)Gd have been observed in the 22 MeV proton inelasticscattering experiment.And the values of spin, parity and deformation length are determined byperforming collective DWBA calculation, for two energy levels whose excitation enersies are 2.558MeV and 2.607MeV respectively.

According to the characteristic of metal plastic deformation in forging the die for hollow sucker rods, the forming condition for upsetting of the middle part of the tube billet is expounded, and the technological process for forging hollow sucker rod by using φ36mm tube billet is presented: the back taper die cavity is adopted to reduce the metal flow resistance between the mandrel and the die cavity and decrease the mandrel extraction; the die division plane is setting on the flange in the forming step and...

According to the characteristic of metal plastic deformation in forging the die for hollow sucker rods, the forming condition for upsetting of the middle part of the tube billet is expounded, and the technological process for forging hollow sucker rod by using φ36mm tube billet is presented: the back taper die cavity is adopted to reduce the metal flow resistance between the mandrel and the die cavity and decrease the mandrel extraction; the die division plane is setting on the flange in the forming step and minor deforming length-wall thickness ratio is adopted to avoid plastic instability of the inner wall. Satisfactory effect has been achieved by using the forve-mentioned forging die.