1) pre-stress(pre-strain)
预应力(预应变)
2) hoek-brown rule
预应力蠕变
3) prestress variation
预应力变化
1.
Although the anchor cable is widely used in the geotechnical projects,the prestress variation rules of the anchor cables are still not clear,especially the prestress loss when being locked and lasting of prestress variation of cable in cracked rock are interesting issues.
在综合分析锚索预应力阶段变化特点的基础上,将影响锚索预应力变化的因素归结为可补救、长期作用和周期波动三类,并分别进行了定量和定性分析。
4) prestressing
预应力;预加应力
5) prestrain
[pri:'strein]
预应变
1.
Effect of prestrain on impact toughness and ductile-brittle transition temperature of welded joint;
预应变下焊接接头冲击韧度及韧—脆转变的分析
2.
The Experimental Study on Mechanical Behaviour of Prestrain A3 Steel;
预应变A3钢的力学性能实验研究
3.
The effect of prestrain on the reverse martensitic transformation of TiNi shape memory alloy fibers embedded in an Al matrix has been studied by differential scanning calorimeter(DSC),X-ray diffraction(XRD) and scanning electron microscope(SEM) methods.
采用示差扫描热分析(DSC)、X射线衍射(XRD)和扫描电子显微分析(SEM)等方法,研究了预应变对铝基体中复合的TiNi形状记忆合金丝的马氏体逆相变的影响。
6) pre-strain
预应变量
1.
The effect of pre-strain on shape recovery strain in an Fe-25%Mn-4.
5%Si-1%Cr-2%Ni合金预应变对可恢复应变量的影响,并用X射线衍射分析方法考察了应力诱发ε马氏体(εM)体积分数随预应变量的变化关系。
2.
The effect of the pre-strain and technique of heating and cooing on the recovery stress of Fe-Mn-Si-CrNi-C shape memory alloy has been studied.
研究了预应变量、加热和冷却工艺对FeMn－Si-Cr－Ni－C形状记忆合金回复应力的影响。
3.
The effects of different pre-strains,heat treatments and mediums on the shape memory effect of CuZnAl alloys with different transformation temperatures were studied.
研究了预应变量、热处理工艺和循环介质对不同相变温度CuZnAl形状记忆合金形状记忆效应的影响。
补充资料：预应力
分子式：
CAS号：
性质：试验中试样所受到的预加的恒定静态应力，单位为Pa。在生热性疲劳试验中，如固特里奇屈挠试验中，一般都施加一恒定预应力，使试样产生一静态变形，再叠加一周期压缩变形进行试验，通常预应力的大小会影响试样的疲劳寿命，预应力越大，则试样寿命会越明显缩短。也有的先施加一静态压缩变形，再叠加周期性剪切变形进行试验。
CAS号：
性质：试验中试样所受到的预加的恒定静态应力，单位为Pa。在生热性疲劳试验中，如固特里奇屈挠试验中，一般都施加一恒定预应力，使试样产生一静态变形，再叠加一周期压缩变形进行试验，通常预应力的大小会影响试样的疲劳寿命，预应力越大，则试样寿命会越明显缩短。也有的先施加一静态压缩变形，再叠加周期性剪切变形进行试验。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条