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How to define a specific time active force curve in Abaqus

Submitted by dgquvn on

I was trying to create a load curve associated with time, such as a sine curve at the beginning, and then the force vanishes. Therefore, I cannot just use the periodic curve directly. I tried to input two loads periodic sine curves(same step) so that at a later time like t_0 the total load is cancelled. But it seems the displacement reaction is kind of weird. Is this the right way to do this kind of load-time curve, or is there another better way? Thanks a lot.

Blueze

strain/stress in local material coordinates

Submitted by Pocivavsek on
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We are doing simulations of simple bilayer composites which undergo extensive buckling and post-buckling instabilities. The simulation is being done with ABAQUS explicit to capture the highly non-linear geometries. Everything works very well, however to compare with our analytical theory we need the Green strain at each element. ABAQUS for solid elements gives only the NE or LE which is projected onto the global coordinate system.

ABAQUS 6.14 CAE "pre.exe" error

Submitted by norsaheru on
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I am planning to analyze my Senior Design Project by statically on Abaqus, since I am just an undergraduate student, I am also planning to do this on my new laptop that have;

8+4 GB DDR3 800MHz RAM

Intel i7 4700HQ 3300 MHz Processor

nVidia GeForce GT 750M Graphics

I got Abaqus 6.14 from my school, I tried to make a simple example to test the program is running with no error, finally I have an error with this message;

Direct Dynamic Analysis Method (DDAM) of the US Navy... Not found in Abaqus 6.14!!

Submitted by Youssef Hafiz on

I worked with Direct Dynamic Analysis Method (DDAM) of the US Navy with Abaqus in 2007, but when I revisit it again in 6.14 version I didn't find it and it is not in the documentation also. Is it removed from Abaqus? and  why? In ship building industry, they use it heavily till now.

Please, find the attached file about the method from a Simulia document in 2007

Simpleware Webinars: Intro to Animations Tools and New Physics Modules - February 11th and 18th

Submitted by Simpleware on

(re-arranged from January 14th and 21st)

We're running two webinars in February on the latest additions to our software ScanIP's 3D image processing, visualisation and model generation capabilities. The webinars are ideal for existing users and those wanting to learn more about creating models from 3D images.

Introduction to the new ScanIP Animations Tool on February 11th (8am/5pm GMT)

help

Submitted by thuannv on
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Hi,

Nice to meet you,

My name is Thuan, Student in Korea.

I am sudying about composite plate.

Could you send me Matlab code of composite plate?

My email is thuandhnt [at] gmail.com.

Thanks.

Asking for help about fixing an error while creating a model and simulating it using "SimMechanics"

Submitted by AKSIL Sara Keltoum on
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Hello , everyone ! I really need your help ! 

I've created a model for a 6DOF (RRRPRR) robot but I keep getting an error message about the "Revolute4" joint . 

Can anyone help me fixing it as soon as possible , please ? Thanks in advance . 

How obtain tension strain concrete(σt0) in damaged plasticity model in ABAQUS?

Submitted by siren300 on
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How obtain tension strain concrete(σt0) in damaged plasticity model in ABAQUS?

hello engineers

i need help about concrete damaged plasticity

fo example :

if Compressive stress (Fu)= 51.2 MPa

and tension stress (σ t)=0.3 x 51.2^(2/3)=4.136

1)why (σ t) is 2.36 in picture(uploaded)?

2)what is tension strain ? and how? i cant understand.

i cant obtain εt = total tensile strain.

how obtain εcr ?

please help