对无氧铜在破碎前出现塑性失稳——多重颈缩进行了初步分析，利用能量平衡的破碎理论给出了无氧铜环的破碎分布。
The plastic instability, i. e. multiple necking fracture before the fragmentation was fundamentally analyzed, and the fragments distribution was obtained from the energy balance theory.
对塑性成形原理中传统相似理论之不足进行了分析，导出小试件对大锻件无直接模拟的可能性的结论。
The inadequate of a resemblance theory in the traditional metal plasticity is dissected, Where a conclusion of which there is no direct resemblance for a small sample of the heavy forging is deduced.
精密冷滚轧是金属塑性成形与轧制成形相结合的一种无切削加工工艺。
Precision CRF (Cold roll forming) is a kind of non-cutting technology, which integrates the metal plastic forming and rolling forming.
高效少无氧化加热技术及热塑性成形过程中防氧化技术的研究，是实现精成形的关键配套技术。
High effective heating technology without or little oxidation and prevention oxidation during thermo-plastic forming are key kit technology to realize precision forming.
介绍了一种利用激光作为热源使金属板料在无模具下发生热塑性变形的新的成形加工方法。
A new forming process which can make sheet metals thermoplastic deformation without dies through the use of a laser as a heat source was described.
如果刀具参数选取得当，能在常规切削用量下获得在玻璃的塑性域内形成的、无微裂纹的加工表面。
Crack-free surface that is formed in ductile regime of glass can be obtained under conventional cutting conditions if the tool parameters are chosen properly.
计算结果表明，IF钢的延伸率、耐低温钢的无塑性变形温度预报值与实测值相当符合。
The results of computation indicate that the elongation of IF steel, the temperature of zero plastic deformation of low-temperature steel predicted are in agreement with the experimental data.
对无镍奥氏体不锈钢经塑性变形后自由表面微观形态变化以及对耐腐蚀性能的影响进行了观察分析。
The micromorphic change of free surface and property of corrosion resistance were observed after austenitic stainless steel was treated by plastic deformation.
是一个无渗透、易维护保养、可塑性强、易于加工又环保抑菌的产品。
This is a nonporous surface that is easy to maintain, repairable, and mold and bacteria resistan.
用视塑性(网格)方法研究了铜复铅芯模拟样品轧制时的变形行为，与无铅芯的样品进行了比较，由此了解带液芯连铸坯轻压下时的变形特征。
The Cu Pb clad samples were used to simulate the strands with liquid core and the deformation characteristics of the sample in the rolling process were investigated by visio plasticity (mesh) method.
针对土质边坡的稳定性问题，提出了利用无网格法中的再生核质点法（RKPM）进行弹塑性分析的方法。
Aiming at the elastoplastic analysis of soil slope stability, a reproducing kernel particle method(RKPM) was put forward.
准铸态贝氏体低碳球铁韧塑性的提高，与其组织中形成的大量奥氏体和镶嵌在当中的针状无碳贝氏体密切相关。
The enhancement of toughness and plasticity of quasi-as-cast bainite low carbon ductile iron is contributed by the large amount of austenite and acicular carbon-free bainite inlaying in the austenite.
常规的无粘结柔性管采用的是多层构造，主要为金属材料增强的热塑性管道衬里。
Conventional unbonded flexible pipe designs are a multi-layer construction based upon a thermoplastic pipe liner reinforced with metallic materials.
基于这个思想，我们希望找到一种能够解决粉煤灰“无塑性”的方法。
Based on this idea, we hope to be able to find a solution to fly "no plastic" approach.
本发明的优点：无毒无臭、高弹塑性、高强度及低温柔韧性及耐老化性。
The present invention has the advantages of high elasticity, plasticity, high intension, innocuous, scentless, low-temperature flexibility and age resistant performance.
利用激光作为热源使金属板料在无模具下发生热塑性变形是一种新的成形方法。
A new forming process which can make sheet metal thermoplastic deforming without dies through the use of laser as heat source was described.
利用可考虑局部破坏的非线性弹塑性有限元，对无加筋和加筋砂土的平面应变压缩试验结果进行了从小变形到破坏的全过程数值解析。
Numerical analyses of plane strain compression tests for the geogrid-reinforced sand specimens were conducted by the nonlinear elastoplastic FEM considering strain localization.
通过采用影响域节点控制方法以及边界节点分布密度动态控制方法，实现了塑性成形过程的无网格伽辽金方法的自适应分析。
The influence domain control method and adaptive boundary points setting method were developed and the large metal forming meshless analyses were realized.
在满足一般力学原理和临界状态土力学理论的基础上 ，本文将亚塑性理论与临界状态土力学相结合 ，推出了一个计算无粘性土静止土压力系数的理论公式 。
The concept of introducing critical repeated stress level into the Carter Model is expounded based on the critical state soil mechanics; and the Carter Model is modified.
丝杠冷打是在工具和丝杠高速相对运动中，以高速断续的方式击打丝杠轴坯，使丝杆轴坯局部塑性变形形成丝杠螺纹的一种无屑塑性成形技术。
Cold beating lead screw plays the role of high-speed relative motion in the way of high-speed blowing shaft blanks, so that local plastic deformation forms a non-chip metal forming technique.
丝杠冷打是在工具和丝杠高速相对运动中，以高速断续的方式击打丝杠轴坯，使丝杆轴坯局部塑性变形形成丝杠螺纹的一种无屑塑性成形技术。
Cold beating lead screw plays the role of high-speed relative motion in the way of high-speed blowing shaft blanks, so that local plastic deformation forms a non-chip metal forming technique.
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