与中国一起走向世界，与世界一起走向未来
锁志刚
西安交通大学毕业典礼，2015.6.27
尊敬的张迈曾书记，尊敬的王树国校长，
各位嘉宾，各位老师，各位同学，各位家长，
大家上午好！
感谢学校让我作为校友在毕业典礼上致辞。年轻的同学们，我想和你们谈一个大家都关心的话题：机会。
三十年前，也就是一九八五年，我从西安交通大学本科毕业。毕业典礼上，汪应洛副校长讲话。主题是技术革命与中国振兴。当时技术革命的热点是光纤维。当时普遍认为中国比发达国家落后几十年，赶超世界是一个遥远的梦想。汪应洛教授指出，中国不需要走西方的老路，不需要先普及电话，再建设互联网。在光纤维的时代，中国与世界站在同一个起跑线上。光纤维是中国振兴的一个机会。
3rd International Symposium on Energy Challenges and Mechanics - towards a big picture
7th-9th July 2015, Aberdeen, United Kingdom, the Energy Capital of Europe
Conference website
Conference Guide
Programme
Plenary lectures
Parallel sessions
3D printing and numerical analysis are combined to design a new class of architected materials that contain bistable beam elements and exhibit controlled trapping of elastic energy. The proposed energy-absorbing structures are reusable. Moreover, the mechanism of energy absorption stems solely from the structural geometry of the printed beam elements, and is therefore both materials- and loading-rate independent.
http://onlinelibrary.wiley.com/doi/10.1002/adma.201501708/full
Dear all,
The 6th interntional conference on Mechanics of Biomaterials and Tissues will be in Hawaii. Please see the poster in the attachment. The dealine for submitting the abstract will be extended.
Best
shengqiang
6th International Conference on Mechanics of Biomaterials and Tissues
6-10 December 2015 | Waikoloa, Hawaii, USA
If you haven't already sunbmitted your abstract, please do so by Friday 26th June 2015.http: www.mechanicsofbiomaterials.com
Two PhD and two post-doctoral positions are available at IMDEA Materials Institute within the framework of a project funded by the European Reseach Council to develop multiscale modeling strategies –together with the corresponding experimental validation– to simulate the microstructural development during solidification and thermal treatments as well as the mechanical behavior at different length scales of Al and Mg alloys.
More details and information to apply can be found in the enclosed files.
The Asian/Australian Rotorcraft Forum is one of the premier events in the rotorcraft community's calendar bringing together manufacturers, research centers, academia, operators and regulatory agencies to discuss advances in research, development, design, manufacturing, testing, and operation of rotorcraft.
Dear Mechanicians,
time and again the question of modeling moving heat sources pops up, often in the context of laser heating.
One can achieve this using the subroutine DFLUX in ABAQUS.
I decided to post some links here to avoid responding with a longer explanation to every individual seeking assistance.
Please note that I have never worked with any one of these codes and have no access to ABAQUS at present.
No warranty is given by me.
"ELEMENT DELETION" is available in Abaqus Explicit:
Sir,
I want to ask you a question,
I debug a constitutive model about the cohesive element in ABAQUS.
You know the key point of this element's constitutive model is Traction-Seperation Relationship.
I want to test my model by Umat, not the Uel.
So I want to ask whether Stran is the relative displacement(not strain) of the Gauss point in this type element.
And how Dstran is calculated by UEL subroutine!!!
