Hi,
I am working in rubber. Since this is hyperelastic material, I seriously doubt whether I can use the relation E=2G*(1+nu) which is valid for metals.
Is there any relation for rubber as such? Can anyone give me a direction on how to get the relation between these two?
Thanks in advance!
Applications are accepted for a postdoctoral research associate position at Center for Risk and Reliability, Department of Mechanical Engineering, University of Maryland, College Park, MD, USA.
This book is an outgrowth of lecture notes of a graduate course on mechanics of soft materials that I teach since 2009. The interest in mechanics of soft materials is triggered by the development of new engineering and biomedical technologies. Mechanical behavior of soft materials is strongly nonlinear from both physical (constitutive equations) and geometrical (large deformations) standpoints and the standard texts on mechanics of materials are not enough in this case. The nonlinearities make the subject challenging yet rich and exciting.
A nice demonstration of toughening by introducing multiple secondary cracking of planes parallel with the primary crack is found in the paper:
The definition of the size of the Representative Volume Element (RVE) is extremely important for the mechanics and physics of heterogeneous materials since it should statistically represent the micro-structure of the material. In the present contribution, a methodology based on statistical analysis and numerical experiments is proposed to determine the size of the RVE for heterogeneous amorphous polymers subjected to finite deformations.
Advanced energy materials hold one of the keys to fundamental advances in the conversion, storage, and harvesting of energy for a broad range of consumer electronics, automotive, aerospace, and defense applications. The successful development and deployment of these materials relies critically on a fundamental understanding of strongly coupled multiphysics phenomena. Mechanics of energy materials has emerged as a rapidly growing area of research that has significant technological implications in improving the efficiency, reliability, and sustainability of energy infrastructure.
Please share this with any interested parties. Thank you - Rob Carpick
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Hello,
I am trying to evaluate the behaviour of a 2D plain strain "cut and cover" tunnel section when I apply static loads (by the moment)
I am using XFEM method in order to evaluate the cracks through the reinforced concrete material. The model has been meshed by CPE4R elements (Quad)
I have modelled 2 types of steps: Geostatic in order to apply the initial stress state and Static, general for the rest of steps.
I am trying to solve the error below:
A xfem analysis with pore pressure degrees of freedom is not supported.
Hi Sirs,
As title, I wondering if the problem can be solved with only material residual stress but no other external load applied?
After several trials, Abaqus returns message
"MASS OR DIFFERENTIAL STIFFNESS MATRIX IS COMPLETELY NULL. THE EIGENPROBLEM CANNOT BE SOLVED. IN A *BUCKLE ANALYSIS THE MOST LIKELY CAUSE IS THAT A NONZERO LOADING PATTERN WAS NOT SPECIFIED VIA *BOUNDARY, *CLOAD, *DLOAD, ETC,. SEE Eigenvalue Buckling Prediction IN THE ABAQUS/STANDARD USERS MANUAL"
