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Dear Colleague

i want to model the piezoelectric material in abaqus, i want to analysis the stress and fracture but i have a lots of problem with this material, can you help me in this case please?! thanks in advance.

my email: mahyar.iii [at] gmail.com 

Dear ALL

I have this PDF and I have some information at this coding but have not information about the temprature dependent material properties.

what can I do??

sorry for that

For example see this function:

E(T)=E0*T^2+A*T+ ....

What can I define this type of Function?? 

Is my statement true? Can I do alike nonisotermal behaviour of the material???

 Please help me 

 Thanks so much

Regards 

Dear All redears

Thanks for helping me about the defenition of solution dipendent satet variables.

I have another question and is that what can I do, if I want to define temperature dependent material propertiies at UMAT?

is it true to define temprature as a propertiy at the start and end od incerement and compute the propertiy at both cases?? I mean at end and start of it??

To clear the propblem for example i have this type of material peroperty:

E=E(T), NU=NU(T)

for example E and Nu are function of temprature.

I have a question about the EQUATION constraint to apply periodical boundary conditions via Script in Abaqus. The detailes is as follows

(1) Create the node sets firstly in the PART Module;

(2) Using script to create node sets containing only one node;

(3) Using the following script to establish the EQUATION constraint

mdb.models['Job-1'].Equation(name=’Constraint-1′, terms=((1.0,

‘PART-1-1.Node-1′, 1), (1.0, ‘PART-1-1.Node-2′, 1), (-1.0, ‘RP1′, 1)))

Violating the law of energy conservation, Zanaboni Theorem is invalid

and Zanaboni's proof is wrong. Zanaboni's mistake of " proof " is analyzed.

Energy Theorem for Zanaboni Problem is suggested and proved.

Equations and conditions are established in this paper for Zanaboni Problem,

which are consistent with , equivalent or identical to each other. Zanaboni

Theorem is, for its invalidity , not a mathematical formulation or

proof of Saint-Venant's Principle.