公开(公告)号：US08176795B2

公开(公告)日：2012-05-15

申请号：US12498799

申请日：2009-07-07

申请人： Jy-an Wang ,  Ken C. Liu ,  Zhili Feng

发明人： Jy-an Wang ,  Ken C. Liu ,  Zhili Feng

IPC分类号： G01N3/02 ,  G01N3/26

CPC分类号： G01N35/00

摘要： An in-situ specimen fixture particularly adapted for prestressing rod-type SNTT-type specimens comprising a tube and end cap wherein the specimen is secured at one end to the tube, and at the opposite end to the end cap. The end cap is rotatable relative to the tube, and may be fixedly secured for creating a torsional force prestressing the specimen enclosed within the tube.

摘要翻译： 特别适用于预应力棒型SNTT型试样的原位试样夹具，其包括管和端盖，其中试样的一端固定在管上，并在与端盖相对的端部固定。 端盖可相对于管子旋转，并且可以被固定地固定，以产生预应力封闭在管子内的扭转力。

公开(公告)号：US20120055258A1

公开(公告)日：2012-03-08

申请号：US12875169

申请日：2010-09-03

申请人： Jy-An Wang ,  Zhili Feng ,  Lawrence M. Anovitz ,  Kenneth C. Liu

发明人： Jy-An Wang ,  Zhili Feng ,  Lawrence M. Anovitz ,  Kenneth C. Liu

IPC分类号： G01N3/12

CPC分类号： G01N3/36

摘要： Provided are several examples of apparatuses and methods for applying loads to material specimens in pressurized fluid environments. The apparatuses use the fluid pressure as the force for applying the loads to the specimens.

摘要翻译： 提供了用于在加压流体环境中对材料样本施加负载的装置和方法的几个示例。 设备使用流体压力作为将载荷施加到试样的力。

公开(公告)号：US20110005332A1

公开(公告)日：2011-01-13

申请号：US12498877

申请日：2009-07-07

申请人： John Jy-an Wang ,  Ken C. Liu ,  Zhili Feng

发明人： John Jy-an Wang ,  Ken C. Liu ,  Zhili Feng

IPC分类号： G01N3/02

CPC分类号： G01N35/00

摘要： A stress-strain testing apparatus imposes a stress-strain on a specimen while disposed in a controlled environment. Each end of the specimen is fastened to an end cap and a strain gage is attached to the specimen. An adjusting mechanism and a compression element are disposed between the end caps forming a frame for applying forces to the end caps and thereby stress-straining the specimen. The adjusting mechanism may be extended or retracted to increase or decrease the imposed stress-strain on the specimen, and the stress-strain is measured by the strain gage on the specimen while the apparatus is exposed to an environment such as high pressure hydrogen. Strain gages may be placed on the frame to measure stress-strains in the frame that may be caused by the environment.

摘要翻译： 应力应变测试装置在被控制的环境中施加应力应变。 将样品的每个端部固定到端盖上，并将应变计连接到样品上。 调节机构和压缩元件设置在形成框架的端盖之间，用于向端盖施加力，从而使样本受应力拉伸。 调整机构可以延伸或缩回以增加或减少试样上施加的应力 - 应变，并且当设备暴露于诸如高压氢气的环境中时，通过样品上的应变计来测量应力 - 应变。 应变计可以放置在框架上以测量可能由环境引起的框架中的应力应变。

公开(公告)号：US20110005331A1

公开(公告)日：2011-01-13

申请号：US12498799

申请日：2009-07-07

申请人： Jy-an Wang ,  Ken C. Liu ,  Zhili Feng

发明人： Jy-an Wang ,  Ken C. Liu ,  Zhili Feng

IPC分类号： G01N3/22

CPC分类号： G01N35/00

摘要： An in-situ specimen fixture particularly adapted for prestressing rod-type SNTT-type specimens comprising a tube and end cap wherein the specimen is secured at one end to the tube, and at the opposite end to the end cap. The end cap is rotatable relative to the tube, and may be fixedly secured for creating a torsional force prestressing the specimen enclosed within the tube.

摘要翻译： 特别适用于预应力棒型SNTT型试样的原位试样夹具，其包括管和端盖，其中试样的一端固定在管上，并在与端盖相对的端部固定。 端盖可相对于管子旋转，并且可以被固定地固定，以产生预应力封闭在管子内的扭转力。

公开(公告)号：US08664529B2

公开(公告)日：2014-03-04

申请号：US13360882

申请日：2012-01-30

申请人： Jy-An Wang ,  Fei Ren ,  Dominic F. Lee ,  Hao Jiang

发明人： Jy-An Wang ,  Fei Ren ,  Dominic F. Lee ,  Hao Jiang

IPC分类号： H02G15/192

CPC分类号： H01R4/5083 ,  H02G15/08 ,  H02G15/192

摘要： Disclosed are several examples of an apparatus for connecting the free ends of two electrical power transmission lines having conductor strands disposed around a central, reinforcing core. The examples include an inner sleeve having a body defining an inner bore passing through an axially-extending, central axis, an outer rim surface disposed radially outward from the central bore, and one or more axially-extending grooves penetrating the body at the outer rim surface. Also included is an outer splice having a tubular shaped body with a bore passing coaxially through the central axis, the bore defining an inner rim surface for accepting the inner sleeve. The inner bore of the inner sleeve accepts the reinforcement cores of the two conductors, and the grooves accept the conductor strands in an overlapping configuration so that a majority of the electrical current flows between the overlapped conductor strands when the conductors are transmitting electrical current.

摘要翻译： 公开了用于连接两条电力传输线的自由端的设备的几个示例，该两条电力传输线具有设置在中央加强芯周围的导线。 这些实例包括内套筒，其具有限定通过轴向延伸的中心轴线的内孔的主体，从中心孔径向向外设置的外边缘表面以及在外边缘处穿过主体的一个或多个轴向延伸槽 表面。 还包括具有管状体的外部接头，其具有通过中心轴线同轴的孔，孔限定用于接纳内套筒的内缘表面。 内套筒的内孔接受两个导体的加强芯，并且凹槽以重叠的构造接纳导线，使得当导体传输电流时，大部分电流在重叠的导体线之间流动。

公开(公告)号：US20130192870A1

公开(公告)日：2013-08-01

申请号：US13360882

申请日：2012-01-30

申请人： Jy-An Wang ,  Fei Ren ,  Dominic F. Lee ,  Hao Jiang

发明人： Jy-An Wang ,  Fei Ren ,  Dominic F. Lee ,  Hao Jiang

IPC分类号： H02G15/192

CPC分类号： H01R4/5083 ,  H02G15/08 ,  H02G15/192

摘要： Disclosed are several examples of an apparatus for connecting the free ends of two electrical power transmission lines having conductor strands disposed around a central, reinforcing core. The examples include an inner sleeve having a body defining an inner bore passing through an axially-extending, central axis, an outer rim surface disposed radially outward from the central bore, and one or more axially-extending grooves penetrating the body at the outer rim surface. Also included is an outer splice having a tubular shaped body with a bore passing coaxially through the central axis, the bore defining an inner rim surface for accepting the inner sleeve. The inner bore of the inner sleeve accepts the reinforcement cores of the two conductors, and the grooves accept the conductor strands in an overlapping configuration so that a majority of the electrical current flows between the overlapped conductor strands when the conductors are transmitting electrical current.

摘要翻译： 公开了用于连接两条电力传输线的自由端的设备的几个示例，该两条电力传输线具有设置在中央加强芯周围的导线。 这些实例包括内套筒，其具有限定通过轴向延伸的中心轴线的内孔的主体，从中心孔径向向外设置的外边缘表面以及在外边缘处穿过主体的一个或多个轴向延伸槽 表面。 还包括具有管状体的外部接头，其具有通过中心轴线同轴的孔，孔限定用于接纳内套筒的内缘表面。 内套筒的内孔接受两个导体的加强芯，并且凹槽以重叠的构造接纳导线，使得当导体传输电流时，大部分电流在重叠的导体线之间流动。

公开(公告)号：US08453515B2

公开(公告)日：2013-06-04

申请号：US12875169

申请日：2010-09-03

申请人： Jy-An Wang ,  Zhili Feng ,  Lawrence M. Anovitz ,  Kenneth C. Liu

发明人： Jy-An Wang ,  Zhili Feng ,  Lawrence M. Anovitz ,  Kenneth C. Liu

IPC分类号： G01N3/00

CPC分类号： G01N3/36

摘要： The invention provides fatigue testing of a material specimen while the specimen is disposed in a high pressure fluid environment. A specimen is placed between receivers in an end cap of a vessel and a piston that is moveable within the vessel. Pressurized fluid is provided to compression and tension chambers defined between the piston and the vessel. When the pressure in the compression chamber is greater than the pressure in the tension chamber, the specimen is subjected to a compression force. When the pressure in the tension chamber is greater than the pressure in the compression chamber, the specimen is subjected to a tension force. While the specimen is subjected to either force, it is also surrounded by the pressurized fluid in the tension chamber. In some examples, the specimen is surrounded by hydrogen.

摘要翻译： 本发明提供了将样品置于高压流体环境中的材料试样的疲劳试验。 将样品放置在容器的端盖中的接收器和可在容器内移动的活塞之间。 加压流体被提供到限定在活塞和容器之间的压缩和张紧室。 当压缩室中的压力大于张力室中的压力时，试样受到压缩力。 当张力室中的压力大于压缩室中的压力时，试样受到张力。 当样品受到任何一种力时，它也被张力室中的加压流体包围。 在一些实例中，样品被氢包围。

公开(公告)号：US08230748B2

公开(公告)日：2012-07-31

申请号：US12498877

申请日：2009-07-07

申请人： John Jy-an Wang ,  Ken C. Liu ,  Zhili Feng

发明人： John Jy-an Wang ,  Ken C. Liu ,  Zhili Feng

IPC分类号： G01N3/02

CPC分类号： G01N35/00

摘要： A stress-strain testing apparatus imposes a stress-strain on a specimen while disposed in a controlled environment. Each end of the specimen is fastened to an end cap and a strain gage is attached to the specimen. An adjusting mechanism and a compression element are disposed between the end caps forming a frame for applying forces to the end caps and thereby stress-straining the specimen. The adjusting mechanism may be extended or retracted to increase or decrease the imposed stress-strain on the specimen, and the stress-strain is measured by the strain gage on the specimen while the apparatus is exposed to an environment such as high pressure hydrogen. Strain gages may be placed on the frame to measure stress-strains in the frame that may be caused by the environment.

摘要翻译： 应力应变测试装置在被控制的环境中施加应力应变。 将样品的每个端部固定到端盖上，并将应变计连接到样品上。 调节机构和压缩元件设置在形成框架的端盖之间，用于向端盖施加力，从而使样本受应力拉伸。 调整机构可以延伸或缩回以增加或减少试样上施加的应力 - 应变，并且当设备暴露于诸如高压氢气的环境中时，通过样品上的应变计来测量应力 - 应变。 应变计可以放置在框架上以测量可能由环境引起的框架中的应力应变。

公开(公告)号：US06588283B2

公开(公告)日：2003-07-08

申请号：US09888937

申请日：2001-06-25

申请人： Jy-An Wang ,  Kenneth C. Liu

发明人： Jy-An Wang ,  Kenneth C. Liu

IPC分类号： G01N326

CPC分类号： G01N3/22 ,  G01N2203/0021 ,  G01N2203/0066 ,  G01N2203/0067 ,  G01N2203/0073 ,  G01N2203/0218 ,  G01N2203/027

摘要： A method for determining fracture toughness KIC of materials ranging from metallic alloys, brittle ceramics and their composites, and weldments. A cylindrical specimen having a helical V-groove with a 45° pitch is subjected to pure torsion. This loading configuration creates a uniform tensile-stress crack-opening mode, and a transverse plane-strain state along the helical groove. The full length of the spiral groove is equivalent to the thickness of a conventional compact-type specimen. KIC values are determined from the fracture torque and crack length measured from the test specimen using a 3-D finite element program (TOR3D-KIC) developed for the purpose. In addition, a mixed mode (combined tensile and shear stress mode) fracture toughness value can be determined by varying the pitch of the helical groove. Since the key information needed for determining the KIC value is condensed in the vicinity of the crack tip, the specimen can be significantly miniaturized without the loss of generality.

摘要翻译： 用于确定金属合金，脆性陶瓷及其复合材料和焊件的材料的断裂韧性KIC的方法。 具有45°间距的螺旋形V形槽的圆柱形试样经受纯扭转。 该加载构造产生均匀的拉应力开裂模式和沿着螺旋槽的横向平面应变状态。 螺旋槽的全长相当于常规压实型试样的厚度。 使用为此目的开发的3-D有限元程序（TOR3D-KIC），从测试样品测量的断裂扭矩和裂纹长度确定KIC值。 此外，可以通过改变螺旋槽的间距来确定混合模式（组合的拉伸和剪切应力模式）断裂韧性值。 由于确定KIC值所需的关键信息在裂纹尖端附近被凝聚，所以在不失一般性的情况下能够使样本显着地小型化。

公开(公告)号：US20120118395A1

公开(公告)日：2012-05-17

申请号：US12945252

申请日：2010-11-12

申请人： Jy-An Wang ,  Fei Ren ,  Yun Liu

发明人： Jy-An Wang ,  Fei Ren ,  Yun Liu

IPC分类号： F17D1/08 ,  H05B7/18

CPC分类号： G01N3/567 ,  B23K26/122 ,  E21B43/26 ,  E21B49/006 ,  F17D1/08 ,  G01N29/2418 ,  G01N33/2823 ,  G01N2203/0055 ,  H05B7/18 ,  Y10T137/0391

摘要： An apparatus for inducing cavitation at a surface of a specimen includes a cavitation chamber, a window extending through the wall of the chamber to an area outside the chamber, a test specimen positioned within the chamber, and a cavitation media inside the chamber and in contact with the surface of the specimen. A laser light source is disposed outside the chamber, and is operable to provide a laser beam through the window and into the cavitation media. The laser light source generates a shock wave in the cavitation media, the shock wave causing cavitation at the surface of the specimen.

摘要翻译： 用于在试样的表面引起气蚀的装置包括空化室，通过室的壁延伸到室外的区域的窗口，位于室内的试样和在室内并且接触的空化介质 与样品的表面。 激光源设置在室外，并且可操作以提供通过窗口并进入空化介质的激光束。 激光源在空化介质中产生冲击波，冲击波在样品表面引起气蚀。