research
Discrete Element Method
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Hallo,
from this month i am going to start my work on Discrete Element Method. I am totally new to this field. Therefore, i am looking for some material which can help me not only to understand the theoretical concept but as well as the programming concept in this field.
I will be very thankful if someone have materials related to DEM.
Regrads
Braj Bhushan Prasad
Analysis of the adsorption-induced deformation of ordered meso/nanoporous materials
Liu, M., Zhang, Y., Wu, J., Gan, Y., & Chen, C. Q. (2016). Analytical solutions for elastic response of coated mesoporous materials to pore pressure. International Journal of Engineering Science, 107, 68-76.
A feasibility study of the Master SN curve approach for short fiber reinforced composites
I hope you find our recent work interesting...
A feasibility study of the Master SN curve approach for short fiber reinforced composites
Atul Jain, Wim Van Paepegem, Ignaas Verpoest, Stepan V. Lomov
International Journal of Fatigue; Volume 91, Part 1, October 2016, Pages 264–274
http://www.sciencedirect.com/science/article/pii/S0142112316301591
Highlights
-A method for generating local SN curves for short fiber composites is presented.
Strain gradient plasticity-based modeling of hydrogen environment assisted cracking
I hope some of you may find this work interesting:
Strain gradient plasticity-based modeling of hydrogen environment assisted cracking
Emilio Martínez-Pañeda, Christian F. Niordson, Richard P. Gangloff
Acta Materialia, 117, pp. 321-332
http://www.sciencedirect.com/science/article/pii/S1359645416305183
A pre-print is available at www.empaneda.com
What modifications are to be implemented, if the shear strain of a degenerated shell element is modified with (-2*w/Rxy)?
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I had implemented Degenerated shell element by Ahmad et. al (1970). This element performs very poor in case of geometries like rectangular hyperbolic paraboloidal shells. When I modified the strain vector (only shear strain) with a additional -2*w/Rxy (Sahoo and Chakraborty, J. Strain Analysis (2004)), the solutions are not ok. Can you please suggest me if any other things I should be careful?
UMAT for uniaxial compression (plasticity)test is not converge
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Hello everyone,
I am beginner of UMAT.
I am now modeling the model for uniaxial compression of shape memory alloys based on plasticity model and backward euler method.
My material is in cubic 1*1*1. It seems to be simple problem.
Anyway, I am still not familiar with UMAT and Abaqus.
The problem is I apply load just only in Y-axis and specify the boundary condition as in attached file
I think that it passed the plastic deformation zone and abaqus try to calculate...
Call for Papers // Fatigue Durability India 2016 // Publishing Partner Springer
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FatigueDurability India 2016 invites technical papers from all Academicians/ individuals/companies associated with engineering design, analysis, testing, instrumentation, research on Fatigue Durability & Fracture Mechanics or related technologies .
The Authors are encouraged to submit paper on the following themes, but not limited to
Effects of Nanoporosity on the Mechanical Properties and Applications of Aerogels in Composite Structures
Newly published book chapter - http://link.springer.com/chapter/10.1007/978-3-319-31662-8_4 Aerogels are ultralight solids with nanoporous structure and are one of the world’s lightest materials available in the market. It is a dry gel, principally made up of 99.8 % of air and weighing just around three times that of air. The first aerogels were realized in 1931, when Kistler (J Phys Chem 36:52–64, 1932) attempted to remove liquid from a wet gel.
Effects of Nanoporosity on the Mechanical Properties and Applications of Aerogels in Composite Structures
Newly published book chapter - http://link.springer.com/chapter/10.1007/978-3-319-31662-8_4 Aerogels are ultralight solids with nanoporous structure and are one of the world’s lightest materials available in the market. It is a dry gel, principally made up of 99.8 % of air and weighing just around three times that of air. The first aerogels were realized in 1931, when Kistler (J Phys Chem 36:52–64, 1932) attempted to remove liquid from a wet gel.