Variable Plasticity in Metallic Glass Nanowires
Tunable Tensile Ductility in Metallic Glasses
D.J. Magagnosc, R. Ehrbar, G. Kumar, M.R. He, J. Schroers, D.S. Gianola
Scientific Reports 3 (2013) 1096
research
Crack propagation with Gurson model
hello
I identified a set of parameters of the Gurson model. How to use these parameters to simulate the propagation of a crack in a CT specimen?. In another way how to simulate the propagation of a crack with the GTN model?
thanks!
Plrase help me for this case
e-mail: m_hadjmiloud [at] yahoo.fr
3D phenomenological constitutive modeling of shape memory alloys based on microplane theory
This paper is studied constitutive modeling of SMAs, that have some new features. Also some multiaxial loadings on SMAs are investigated experimentally.
Itasca UDEC 4 - shear ratio (srat)
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Hi, everybody!
I have some problem with understanding of shear ratio history (srat) in UDEC.
Here is the description of this function in UDEC manual: "srat - ratio of shear stress to shear strength at contact".
If I take the value 1/srat then I should normally get the value of factor of safety (FS) for shear condition, since this value will be the ratio of shear strength to shear stress at contact. But shear displacement history (sdis) shows that there still can be some shear displacement in case of FS=1/srat more than 1.
GTN Model
hello
I identified a set of parameters of the Gurson model. How to use these parameters to simulate the propagation of a crack in a CT specimen?. In another way how to simulate the propagation of a crack with the GTN model?
thanks!
Unexpected two-phase lithiation of amorphous Si
Two-phase electrochemical lithiation in amorphous silicon
Jiangwei Wang, Yu He, Feifei Fan, Xiao-Hua Liu, Shuman Xia, Yang Liu, Thomas Harris, Hong Li, Jian Yu Huang, Scott X. Mao, and Ting Zhu
Nano Letters, Publication Date (Web): January 16, 2013
http://pubs.acs.org/doi/abs/10.1021/nl304379k
In-situ TEM of two-phase lithiation of amorphous silicon nanospheres
PostDoc Dissertation: Hybird wave time-domain hypersingular integral equation-lattice Boltzmann method to earthquake fault slip
PostDoc Dissertation: Hybird wave time-domain hypersingular integral equation-lattice Boltzmann method to earthquake fault slip problem in the coseismic process under multi temporal-spatial scales and coupled electromagnetothermoforce fields in parallel CPU-GPU system
reading nodal values (EFENRRTR) into a UMAT routine
Hi,
I am using the VCCT method to model crack propagation and I am finding the value of G/Gc is too large for any sensible time step (1e-25).
I am attempting to incorporate a time incrementation scheme into my UMAT which monitors EFENRRTR and modifies the time step (or PNEWDT) according to it's value.
Nonlinear vibration of a nanoplate embedded on a Pasternak-type foundation using nonlocal continuum theory
Nonlinear vibration of a nanoplate embedded on a Pasternak-type foundation using nonlocal continuum theory
BY: Payam Soltani, V. Kamali , O. Pashaei Narenjbon, A. Farshidianfar
Abstract:
Nonlocal plate continuum model is utilized to investigate the nonlinear vibration behaviour of a singlelayer
nanoplate. The isotropic nanoplate is assumed to be embedded on a Pasternak-type elastic foundation with the
Theoretical models to predict the flexural failure of reinforced concrete beams under blast loads
The paper by Carta G. and Stochino F. presents two alternative approaches for the study of reinforced concrete beams under blast loads. In the first approach, the beam is modeled by means of Euler–Bernoulli’s theory and its elastic–plastic behavior is expressed through a new nonlinear relationship between bending moment and curvature. In the second approach, instead, the beam is idealized as a single degree of freedom system.