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How can I find material properties of metallic glasses?

Submitted by Yixiang Gan on

I am now going to model a sample with metallic glass (Cu-Zr-Ti) under stress and temperature loads. I wonder whether there is some existing database to find material properties, in particular, the creep properties with respect to temperature and stresses. Then I can use these data as input for a FE analysis.

Thank you very much!

how to simulate fibre direction?

Submitted by yongtao lu on

Hi all

 I am modeling a complex muscle with fibre reinforced. The fibre direction is not constant in this muscle. It is changing with the integration point in the model. Is there anyone who got idea on how to simulate the variable fibre directions in Abaqus?  Can user subroutine ORIENT do this?

 Many thanks,

Ben

Cardiff University

 

China: The prizes and pitfalls of progress

Submitted by Mike Ciavarella on

Remember when I spoke of the Easterlin paradox (a key concept in happiness economics postulated by Richard Easterlin in the 1974 paper "Does Economic Growth Improve the Human Lot? Some Empirical Evidence."[1]
It finds that, contrary to expectation, happiness at a national level

abaqus umat

Submitted by yongtao lu on

hi

I constructed a head model, which includes muscle, soft tissue, skin and bone. I wrote user material subroutine (umat) for muscle and soft tissue, seperately. I am going to define the muscle and soft tissues properties by using my umats. However, I dont know how to define two user material subroutines (umat) in one model. The subroutines share the same name: subroutine umat(...). If I assign two umats, ABAQUS will be confused, wont know which subroutine to go. Is there anybody who knows how to sort this out?

Many thanks,

ben

Making the Right Moves

Submitted by Roozbeh Sanaei on

 

Making the Right Moves: A Practical Guide to Scientific
Management for Postdocs and New Faculty

Based on courses held in 2002 and 2005 by the Burroughs Wellcome Fund and
HHMI, this book is a collection of practical advice and experiences from
seasoned biomedical investigators. The second edition contains three new
chapters on laboratory leadership, project management, and teaching and course
design.