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[arunprabhat12]

 I have to apply pressure on truss line body members. Pressure is time varying blast triangular load. When i am applying line pressure through tabular instead of magnitude there is some error. But when using line pressure using magnitude then there is no error. So how can i apply a time varying pressure on line body?

[Sandeep Medikonda]

Hi Arun,

  Please see this post on how to define an expression for pressure based on time.

Regards,
Sandeep

[arunprabhat12]

Thanks Sir

But when i am applying line pressure through tabular data, an error "Could not transfer loads and constraints to the solver" occurs.

But for pressure on surface body it is not showing any error

[Sandeep Medikonda]

Arun, Can you explain with inline pictures as to what you are doing?

[arunprabhat12]

this is a normal cantilever beam with any random c/sec.

I am applying a time varying line pressure in explicit dynamics module.

In the solution, this error appears

[arunprabhat12]

But in the static structural module this type error is not shown in applying line pressure 

[Sandeep Medikonda]

Arun,

Looks like only the constant load is not supported for Explicit Dynamics. This is from the manual:

Loading Data Definition : Enter loading data using one of the following options.

Constant: Supported.

This is the only option supported for Explicit Dynamics.

Regards,
Sandeep
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[arunprabhat12]

Thanks Sir I have checked the manual and it is written that tabular data is not supported for acceleration and line pressure in Explicit Dynamics.

[arunprabhat12]

If I do the analysis of bridge under blast in Autodyn solver instead of work bench, will that be much helpful?

[Sandeep Medikonda]

Hi arun,

Yes, tabular data is supported for displacement, velocity, force, pressure BC. But not for acceleration, even in Autodyn GUI.

Regards,
Sandeep