Concrete stress-strain Softening beha...

Concrete stress-strain Softening behavior?

Posted in the ANSYS Forum

sami0222

Orland Park, IL

#1 Sep 26, 2010
I have tried to input the following stress-strain relationship for SOLID 65 Concrete material, but I keep on getting error messages saying I cannot input negative slopes in the data table. I need to specify the softening behavior of concrete after the ultimate strength, is there any other way to specify it? Thank you in advance for your help.

TB,MISO,1,1,6,
TBTEMP,0
TBPT,,0.00052948,fc*0.4
TBPT,,0.000796,fc*0.6
TBPT,,0.00121,fc*0.85
TBPT,,0.0015,fc
TBPT,,0.00154,fc*0.819
TBPT,,0.00161,fc*0.276
kalidoss

India

#2 Mar 21, 2011
sami0222...
hi..you can change the input stress-strain value slightly to get the positive slope...it will not create any prob in the result...try it...
Yuva

Chennai, India

#3 Sep 28, 2011
kalidoss wrote:
sami0222...
hi..you can change the input stress-strain value slightly to get the positive slope...it will not create any prob in the result...try it...
but then it is not equal to strain softening portion rite? is it possible to specify the strain softening curve in ANSYS? correct me if i'm wrong. thanx in advance
ItalianHusky

Seattle, WA

#4 Nov 18, 2011
Yuva wrote:
<quoted text>
but then it is not equal to strain softening portion rite? is it possible to specify the strain softening curve in ANSYS? correct me if i'm wrong. thanx in advance
I am having the same issue now. Have you resolved yours?

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