I need to find a .inp file or a python code for the calculation of steel plate ultimate strength.
Anybody here could help me?
I assume "ultimate strength" of the plate under some given loading and support condition mean's maximum load carrying capacity or collapse load at which plate fails. Input the material stress-strain curve in the material properties "plastic" option and in load steps, give a large enough load with a few hundred increments. Analysis will reach a limit load at which it will stop due to convergence of the solution. This time increment at which Abaqus stops is the proportionate load factor and when multiplied by the input load is the collapse load of the plate for the given loading and support condition. Hope this is of help.
As Mr. K. Li mentioned, ultimate strength is a material property, you need to measure it experimentally, you can not get if from simulation.
By ultimate strength of a plate if you meant the max. load bearing capacity of a steel plate (when ultimate strength of steel is known from simple tensile test), then you also need to say under what kind of loading conditions you want to find load bearing capacity. This is possible from simulation provided you know the value of ultimate strength of steel is known from simple tensile test.
You can use material properties such Elastic modules Poisson ratio and yield strength in Abaques but you can not obtain ultimte strength value from it because it is experimental valueTherefore, you have to get from experiments
In general ultimate tensile strength of material will be refered from material data sheet
thanks to Anshul Faye
my quest is about your help comment.
have you any sample in "inp" or python for this type of problems?
I assume "ultimate strength" of the plate under some given loading and support condition mean's maximum load carrying capacity or collapse load at which plate fails. Input the material stress-strain curve in the material properties "plastic" option and in load steps, give a large enough load with a few hundred increments. Analysis will reach a limit load at which it will stop due to convergence of the solution. This time increment at which Abaqus stops is the proportionate load factor and when multiplied by the input load is the collapse load of the plate for the given loading and support condition. Hope this is of help.
I do not have any readymade inp file for your kind of problem. You may look at the ABAQUS Example Problems Manual (link is given). There you may get inp file and other files required for several analysis. Some of them may be similar to what you are looking for. You will get help from there.
http://things.maths.cam.ac.uk/computing/software/abaqus_docs/docs/v6.12/books/exa/default.htm
You can not estimate any material properties by using Abaqus or other FEA software. The properties of any material should be estimated experimentally. You then can input these properties as a single data separately or by defining the stress-strain relationship either as an equation or a data list.
Dear Hamid Moa
Your question is not specific. Do you want you want to find the ultimate strength of the steel plate in tension? Then, that needs to be determined experimentally. On the other hand do you want to find the load capacity of the plate under transverse pressure. Provided, you know the uniaxial tensile strength of the steel, the ultimate transverse load can be determined using Johanssen's yield line method (YLM) or alternatively using the membrane theory. Apllication of YLM to steel is easier than for concrete because steel is an istropic material.
Dear Hamid Moa
Your question is not specific. Do you want you want to find the ultimate strength of the steel plate in tension? Then, that needs to be determined experimentally. On the other hand do you want to find the load capacity of the plate under transverse pressure. Provided, you know the uniaxial tensile strength of the steel, the ultimate transverse load can be determined using Johanssen's yield line method (YLM) or alternatively using the membrane theory. Application of YLM to steel is easier than for concrete because steel is an isotropic material.
my goal is to find the ultimate compression load of a plate with nonlinear buckling behavior and nonlinear post elastic material properties.
have you got the right answer to calculate the stress capacity of plates?
modeling the plate
modeling the material
constraint the ref point to plate edges
insert imperfection with python code to mesh nodes coordinates
define step,BC, and RIKS parameter
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