Skip to main content

Blog posts

Simple Physics concepts

Submitted by BOBBY RENJAN MATHEW on

Hello......

    I have a small doubt. It may feel silly, but please reply.. 

   Suppose I have a pendulum and it is impacting onto a structure. The mass of pendulum is 'm' and the intiial velocity is 'v'. The condition is that the KE at the time of impact should be 'E'. E= 0.5*m*v2 . 

  Now i change the mass of the pendulum to m1 correspondingly velocity should be changed to v1 so that E1=E.

 Now i need to compare the force transmitted to the structure. F = ma. 

Molecular dynamics modeling of NiTi superelasticity in presence of nanoprecipitates

Submitted by Piyas Chowdhury on

The presence of nano-sized coherent precipitates is well known to have crucial impact on the mechanical behaviors of a broad class of shape memory alloys. The local stress gradient at the matrix-precipitate interface is predicted as induced by inter-lattice atomic disregistry. Due to the presence of the local disturbance fields, the preference for activating different martensitic variants, given the uni-directionality thereof, is influenced substantially.

7th Summer School on Biomechanics of Soft Tissues: Multiscale Modeling, Simulation and Applications

Submitted by Gerhard Holzapfel on

7th Summer School on Biomechanics of Soft Tissues: Multiscale Modeling, Simulation and Applications
Graz University of Technology, Austria
July 4 - 8, 2016

coordinated by:
Gerhard A. Holzapfel, Graz University of Technology, Austria
Ray W. Ogden, University of Glasgow, UK

7th Summer School on Biomechanics of Soft Tissues: Multiscale Modeling, Simulation and Applications

Submitted by Gerhard Holzapfel on

7th Summer School on Biomechanics of Soft Tissues: Multiscale Modeling, Simulation and Applications
Graz University of Technology, Austria
July 4 - 8, 2016

coordinated by:
Gerhard A. Holzapfel, Graz University of Technology, Austria
Ray W. Ogden, University of Glasgow, UK

How to apply a prestressing force to strands in abaqus?

Submitted by Dina Zakaria on

i modeled a reinforced concrete beam with a t cross-section and after loading it till 80% of its failure load, i repaired it by using post-tensioned concrete jacket.

i have two questions:

1-how to apply the prestressing force to the strands ?

2-i made interaction between surfaces of the main beam and the jacket, this interaction is tangantial and normal only, is it right or i must make cohessive also ?