压头

The rate of strain energy increases and the nanohardness decreases with the increase in indenter size.

从位错理论的角度分析了压头尺寸对纳米压痕测试结果的影响。

The indentation test with Rockwell indenter is good for hard substrates.

圆锥压头的压入法适用于基体硬度较高的镀层。

The hardness of a material is defined as this: the capability of the material resisting the indent made by a diamond indenter.

一种材料的硬度是这样定义的：即材料抵抗金刚石压头产生压痕的能力。

It was found that compared to the curvature radius, the equivalent radius of indenter played a much more important role on the nanofretting damage of material.

结果表明，相对于尖端名义曲率半径，压头在一定压入深度下的等效曲率半径是决定材料纳动损伤的更有效参数。

Finite element method was used to explore the nanoindentation process of several materials under Berkovich indenter. The simulated nanoindentation results with different tip radii were compared with experiments.

采用有限元方法模拟了纳米压痕中不同曲率半径针尖的压头压入不同材料的加、卸载过程，并对计算结果与实验进行了对比以验证模拟的可靠性。

Described as a hardness testing practice using a calibrated instrument by pressing a resonating rod with a Vickers style Diamond indentor with a fixed force against the surface of the part to be tested.

硬度测试方法如下：使用经过校准的仪器，用 Vickers 型金刚石压头以恒力将谐振杆压向待测件表面。

In this thesis a number of inverse approachesare presented, related to constructing residual stress field in planar and axisymmetricstructures based on fewer testing data, and extracting the plastic properties of ductilematerials from spherical indentation tests.

本文研究了两种反问题：一是利用较少的实验数据构造平面与轴对称残余应力场；二是利用球形压头压入实验提取延性材料的塑性特性。

Machine Tool Plant in Texas by the former backbone of a combination of technology, the company production and development, manufacturing, sales of deep-hole tools, assistive technology device to adapt to the needs of a variety of applications, the standard series has deep-hole drills, deep hole Boring head, rolling head, boring head and deep rolling portfolio Honing first class, and to undertake non-standard deep-hole cutting tools, special-type hole processing tool design and manufacture business.

德州广合机械有限公司由前德州机床厂技术骨干组合而成，本公司生产开发，制造，销售的深孔刀具、辅具能适应各种应用场合的需要，标准系列有深孔钻头、深孔镗头、滚压头、镗滚组合头及深孔珩磨头等，并承接非标准深孔刀具、特型孔加工刀具的设计制造业务。

This paper presents two methods to estimate the relationship between dent depth and contact force, respectivelyβamend method and deflection compensate method, which are developed by using a clear geometrical relation to express indent, incursion profile and deflection difference.

本文以一种新的观点，用一个明确的几何关系来确定压痕、压头与板的接触面剖面及接触中心点与边界点之间的挠度差三者之间的关系，提出两种近似预测接触力与压痕深度关系的方法——β修正法和挠度补偿法。

When an elastic substrate in half-plane was subject to indentations by a rigid, flat-ended punch, a singular stress field and K-dominant region should arise adjacent to the punch edges. When the intensification of such singular stress fields reaches its critical value, fracture will take place on the surface of the contact boundary.

由于周期阵列刚性压头压在半平面弹性体的表面时，会产生周期的Ⅰ型奇异压应力场，该奇异应力场的应力集中达到一定程度时，即达到临界条件时，该奇异应力场所在的边界将开裂。

He and Nina moved to California and lived at 2005 Ivar Street, Apt.

他和Nina搬到加州，并在2005年伊瓦尔街，公寓生活。

Droperidol （ potently inhibits transfected HERGchannels and this is the probable mechanism for QT prolongation.

氟哌利多有效地抑制了转染的 HERG 钾通道，可能是 QT 间期延长的机制。