h*******g
发帖数: 7 | 1 没找到材料板，呵呵。
金属材料，主要是failure analysis,tensile/fatigue test还有electron microscope
analysis。也做过一点点abaqus。请问做这个的找什么工作呀？都有些什么公司要这样
的人呀。谢谢 |
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f******e
发帖数: 198 | 2 Explicit里面有 *tensile failure 和 *shear failure
可以控制单元生死。
以前的版本中有个不太方便的地方是即使单元已经设为“死”，
后处理中仍会画出来，不过可以自己在create display group
里面想办法将其屏蔽掉
还有ABAQUS的生死单元处理办法：
单元生用：
*model change, add
(element set name you want to add),
单元生死用：
*model change, remove
(element set name you want to remove), |
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S*******l
发帖数: 2747 | 3 heat treatment process
hardness
tensile strength
metallography
material analysis
quenching medium |
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s********r
发帖数: 257 | 4 FEA of composite is based on laminate theory. So usually we use shell to
model the fiber reinforced composite panel.
There are many failure criterion for composite:
Tsai-Wu,Tsai-Hill..., Hasin's 3D criterion (Recommend)is comprehensive,
including:
1. Fiber tension failure
2. Fiber compressive failure
3. Matrix tensile failure
4. Matrix compressive failure
5. Delamination
You can go through "Analysis and performance of fiber composite" for entry
lever, or you can go "Failure Criteria in Fiber rei |
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g*****g
发帖数: 390 | 5 Not very care about your question, but I feel you just need the strength,
yield or tensile, for the nanofilm. How to measure it is another thing. |
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P******e
发帖数: 344 | 6 Cree Interveiw Experience
Glassdoor上是说很变态的。实际上也就是Tough了一点。
Phone Interview 等于啥都没问。
On site interview 旅途糟糕透顶，前一个晚上就睡了2个小时。
再前前一个晚上睡了4个小时，所以面试当天状态很差。
下面是我的记录
1. presentation
list all the details, audience can read from what you put on,
you do not need read every thing presented.
a big picture, balance between previous and present
details, direct details, easy to understand
everything list should cause no problem, and understand all
objective clear, whys,
2. 1-1 interview
prepare questi... 阅读全帖 |
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s******o
发帖数: 357 | 7 想从几种塑料中选择一个作为试验件的材料。但是担心塑料一般不能作为结构件，在长
期挤压和受热条件下可能会出现永久变形。
所以想问一下，决定材料受压变形量的是什么参数？ 是tensile strength吗？
operating 温度和硬度呢？ |
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t*n
发帖数: 14458 | 8 MAG?
Solid wire or flux cored?
As far as I know US has TENSILE spec up to 120KSI |
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t*n
发帖数: 14458 | 9 AWS A5.28
欧洲也有比tensile 690MPa更高的等级级别，DNV和Lloyd's都有yield 690的，拉伸得
有770MPa
80%Ar+20%CO2;
Solid wire
能告诉我一下具体的code是哪种吗？
查过AWS好像没找到...
谢谢～～//bow |
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f**p
发帖数: 248 | 10 两年工作经验是tool design,对baker,halliburton和schlumberger三家的产品比较熟
悉的话,过去就是八万起,小公司可能高一点,不过不稳定,不过两年工作经验也只能对他
们主要的tool了解个皮毛,学这些东西至少要五年,下游公司对不同尺寸的tool都有不同
的pressure rating和tensile rating,你设计的时候还不能一刀切.
如果两年纯粹是design经验的,没接触过这些东西的话,也可以忽悠他们一下,不知道这
三个给不给offer,不过像CGG这样的会给.
下游的石油公司貌似对机械专业的需求很小,更多是要地球物理和石油工程的phd,当然
你也可以去做field engineer,干两个星期,休两个星期 |
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h********g
发帖数: 5 | 11 Finite Element Analysis of the Indentation-Induced
Delamination of Bi-Layer Structures
Ming Liu and Fuqian Yang∗
Materials Program, Department of Chemical and Materials Engineering,
University of Kentucky, Lexington, KY, 40506, USA
Journal of
Computational and Theoretical Nanoscience
Vol. 9, 851–858, 2012
Contact deformation can cause local damage of mechanical structures and lead
to structural failure
of mechanical devices. In this work, we use the finite element method
to analyze t... 阅读全帖 |
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b*****d
发帖数: 591 | 13 【 以下文字转载自 Macromolecules 讨论区 】
发信人: bigwood (kkk), 信区: Macromolecules
标 题: Job Position - Extrusion Process & Product Development Engineer
发信站: BBS 未名空间站 (Thu Jul 21 13:17:28 2011, 美东)
Company: Tepha, Inc. (www.tepha.com)
Location: Lexington, MA
Title: Extrusion Process & Product Development Engineer
Summary:
This position requires hands-on individual with fiber extrusion and
processing experience within the medical device industry. The individual
must be a self starter, able to work wi... 阅读全帖 |
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l********e
发帖数: 4863 | 14 小苏的hiphop形象我还得慢慢消化一下。。。一帮小p孩啊 |
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k*l
发帖数: 2574 | 15 这是他06年参加TVB8比赛的状态，呵呵。
现在算不算原形毕露？ |
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c*********r
发帖数: 19468 | 18 How about the official press release?
2015 SUBARU WRX® MAKES WORLD DEBUT AT LOS ANGELES AUTO SHOW
New platform offers a stiffer, more agile chassis for Subaru global
performance icon
New torque-vectoring system reduces understeer
New 268-hp 2.0-liter direct-injection turbo BOXER engine
New standard 6-speed manual transmission
New Sport Lineartronic® CVT with manual modes
LOS ANGELES, Nov. 20, 2013 – Subaru of America, Inc. today introduced the
2015 WRX, a more powerful and better handl... 阅读全帖 |
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c*********r
发帖数: 19468 | 19 不一样，UHSS的规范按惯例就是tensile strength超过780MPa，具体多少就各不相同了
…… |
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c*********r
发帖数: 19468 | 20 Volvo说的UHSS是超过800Mpa tensile strength |
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c*********r
发帖数: 19468 | 22 见我上面贴的文件，Volvo是800MPa YIELD strength，从一代XC90 Volvo说的UHSS按
TENSILE strength就1400MPa了…… |
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B*Z
发帖数: 7062 | 23 没那么神奇吧。第14页写的清清楚楚，tensile strength到达800就是volvo定义的UHSS
了。
而且你的MDX资料和网上一般的不同。按照你找的资料，MDX C住里面一层也是mpa 980的
UHSS。以后就用你找的图吧，不要看网图了。 |
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c*********r
发帖数: 19468 | 24 你看XC90有多少部位可能是tensile strength不到590MPa的呢？ |
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B*Z
发帖数: 7062 | 25 猜测没什么意思。我们这些比较都是在不知道具体钢材用了多少，钢板多厚情况下的讨
论。先天不足。
given这个局限性讨论，很明显在volvo系统里面800 tensile yield就是uhss。根据你的
截图，MDX C柱明显是UHSS了。上面顶部也是了。下面的大铁柱590低了些，可是这是有
粗又大一根实心柱子。和薄铁板不能等同吧。 |
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w*******y
发帖数: 60932 | 26 Link:
http://www.gandermountain.com/modperl/product/details.cgi?i=39849
Kit includes four 1" x 10' tie-down straps with ratchet, two 5/16" x 12"
stretch cords, two 5/16" x 18" stretch cords, and two 5/16" x 24" stretch
cords. Come in a handy black storage case.
Don't know the tensil strength of the tie downs but I am sure they would
hold a deer just fine
Also find that I need a box to hold the straps!
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w*******y
发帖数: 60932 | 27 RadioShackVU-90 XR 80" Boom Length, 26-Element Antenna
Model:VU-90 XR | Catalog #: 15-2152
Ideal for the city or suburbs, this antenna is a must have. The 80" boom
length, 26-element antenna is built with high-tensile strength aluminum for
long life. It has snap-open elements for instant assembly and it has a
strong square boom with "no-tilt" clamp.
* Recommended for city or suburb use; Mounts on roof or attic
* HDTV-ready
* Instant "snap-open" assembly
* VHF range: up to 50 miles
* UHF range: u... 阅读全帖 |
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