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International Journal of Applied Mechanics (IJAM) Vol.1 No.3

Submitted by zishun liu on
journal

International Journal of Applied Mechanics (IJAM) Vol.1 No.3:

The papers are online available

1. “Foreword: Theoretical and Computational Nanomechanics”, Pradeep Sharma (University of Houston), Rui Huang (University of Texas, Austin, USA).

2. “A Multi-scale Non-equilibrium Molecular Dynamics Algorithm and its Applications”, Ni Sheng (Macau University of Science and Technology, China); Shaofan Li (University of California, Berkeley, USA).

International Journal of Applied Mechanics (IJAM) Vol.1 No.1

Submitted by zishun liu on
journal

International Journal of Applied Mechanics (IJAM) Vol.1 No.1:

1. “Crack-like diffusion wedges and compressive stress evolution during thin film growth with inhomogeneous grain boundary diffusivity”, Tanmay K. Bhandakkar,

Eric Chason and Huajian Gao (Brown University). 1-20.

2. “Strained Ferroelectric Thin Films”, Tong-Yi Zhang (Hong Kong University of Science and Technology). 21-40.

International Journal of Applied Mechanics (IJAM) Vol.1 No.2

Submitted by zishun liu on
Journal; Research

International Journal of Applied Mechanics (IJAM)  Vol.1 No.2:

1.  “Postbuckling Of Nano Rods/Tubes Based On Nonlocal Beam Theory”, C. M. Wang (National University of Singapore); Y. Xiang (University of Western Sydney); S. Kitipornchai (City University of Hong Kong). 259-266.

2. “Ductile Fracture Characterization of Aluminum Alloy 2024-T351 Using Damage Plasticity Theory”, Liang Xue and Tomasz Wierzbicki (Massachusetts Institute of Technology) .267-304.

Ansys composite modelling and analysis

Submitted by Hallgeirda on
Forums
Ask iMechanica

Hi Have for a period been searching for tutorials of how to build a composite (and doing an analysis, eigenvalue, Euler-buckling, first ply) model in Ansys.Have been able to find a couple of examples in the Ansys-portal examples search, have after reviewing the different options decided that shell91 will be a appropriate element type for me. (because of nonlinear capabilities)Referring to "152191 - Example of new Failure criteria (FC) method for shell91 vs. old method", shows the basics of how to build a composite specimen of 5 layers, and using new and old FC (Tsai-Wu).

Pulling force/power of a boat trailer

Submitted by Theo on
Forums
Computational Mechanics Forum

I have designed a large boat trailer structure and FEA analyzed it statically.



Now, i want to know if it's possible in CATIA to compute the needed pulling force/power that the trailer will need to start moving. I assume a load of 200ton on the trailer frame and some frictional data must be entered to the wheels/ground contact surface. Anyone has ever done something similar before?

3D buckling eigenvalues

Submitted by Jia-Jie Guo on
Forums
Ask iMechanica

I am using Abaqus to  calculate the critical loading for a 3D buckling beam with both ends pinned. However, the resutls are extreamly large and do not make sense. I try to calculate the 2D case and it matches with theoretical solutions very well. So I doubt that the eigenvalues in a 3D case has some meaning other than the critical loading. 

For a 2D beam buckling problem, the eigenvalues are the critical loading. What do the eigenvalues for a 3D buckling beam mean? Thank you!

Weak form

Submitted by surajitdas on
education

During the study of FEM, I found the term "weak form" of differential equation, which is the integral form of a differential equation along with the boundary conditions for a boundary value problem. Now my question is that why the term "weak" has been used.

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