education

I am M.Sc. sutdent in Istanbul Technical University and my research subject is comparision of several ductile damage models both computationaly and experimentally.

I am trying to compare ductile damage models such as Freudenthal,Cockroft,Ayada ,Brozzo etc. computationally using ABAQUS and seeking a way to implement these damage models in ABAQUS.

To obtain each models damage result individually should damage model be implemented in ABAQUS or can a regular tensile test results be used for calculation of damage values.

A website for comparing of universities, institutes all over the world

Submitted by Feihu Zhao on Sat, 07/16/2011 - 23:52

education

University

comparison

The following link is a website for comparing of the universities, insititutes all over the world. Pretty interesting~~

http://academic.research.microsoft.com/Comparison?entitytype=7&id1=405&id2=568

What's that Car Noise? New SIMULIA Tech Brief Available: NVH Analysis with Rolling Tires

Submitted by matt.ladzinski on Thu, 07/14/2011 - 21:00

The sources of noise in a vehicle are many, including the engine, driveline, tire contact patch and road surface, brakes, and wind to name a few. A Noise, Vibration, and Harshness (NVH) engineer is tasked with predicting these noises early in the design phase to make the necessary adjustments to ensure a harmonic ride, so to speak. The latest SIMULIA Tech Brief illustrates the effects that rolling tires have in contributing to NVH.

fracture mechanics

Submitted by anji_160 on Thu, 07/14/2011 - 05:17

education

sir i am doing my m.e project in fracture mechanics . from baground of civil engg i want to now how to model three point beam bending with crack in ansys plse help me

for mr vinh phu nguyen

Submitted by maslami on Sun, 07/10/2011 - 13:37

education

hello

dear vinh phu nguyen

Book by Zhong Lin Wang, Nanogenerators for Self-powered Devices and Systems

Submitted by Managers on Mon, 07/04/2011 - 10:51

education

energy balance of surface-based cohesive of composite under impact in Absqus 6-10

Submitted by moustachiio on Sun, 07/03/2011 - 21:58

Interface debonding; Size effect; Homogenization; Particulate composites; Constitutive equation

composite delamination

Hi there! I am really new to Abaqus and I need to model a composite
laminated crash cone under impact to a flat solid wall (analytical
surface is used). I modelled a cone with a layers of conventional shell
elements with hashin failure criteria and surface-based cohesive
behaviour as interaction between layers representing the interface of
composite laminates. The model runs successfully but once I checked the
energy balance, the damage dissipation energy from the cohesive, it
turned out to be NEGATIVE (I think this is wrong).