# ENERGY OUTPUT in CalculiX

**URL:** <https://calculix.discourse.group/t/energy-output-in-calculix/1033>\
**Category:** Uncategorized\
**Created:** [March 15, 2022, 8:36am UTC](https://calculix.discourse.group/t/energy-output-in-calculix/1033 "2022-03-15T08:36:54Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![bhanups1991](https://yyz2.discourse-cdn.com/free1/user_avatar/calculix.discourse.group/bhanups1991/32/287_2.png) [@bhanups1991](https://calculix.discourse.group/u/bhanups1991)\
**Post date:** [March 15, 2022, 8:36am UTC](https://calculix.discourse.group/t/energy-output-in-calculix/1033/1 "2022-03-15T08:36:54Z")

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Hi

Is there a way to extract energy output in CalculiX?  
Similar to what ABAQUS does under the history output requests.

Or, alternatively, does anyone know, how is each energy component computed in ABAQUS?

Thanks

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**Author:** ![Calc\_em](https://avatars.discourse-cdn.com/v4/letter/c/43a26b/32.png) [@Calc\_em](https://calculix.discourse.group/u/Calc_em)\
**Post date:** [March 15, 2022, 9:14am UTC](https://calculix.discourse.group/t/energy-output-in-calculix/1033/2 "2022-03-15T09:14:51Z")

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CalculiX has some output variables for energies but far less than Abaqus. Check the User’s Manual paragraph _6.13 Output variables_. Here are the energies that I’ve found there:

- contact energy: CELS
- kinetic energy: ELKE
- internal energy: ELSE
- internal energy density: ENER

When it comes to the way energies are calculated in Abaqus, I don’t think you will be able to find any details other than general description of each energy output variable and chapters about the energy balance. The following chapter can be useful for you though: _Theory → Introduction and Basic Equations → Equilibrium, stress, and state storage → Energy balance_.

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**Author:** ![bhanups1991](https://yyz2.discourse-cdn.com/free1/user_avatar/calculix.discourse.group/bhanups1991/32/287_2.png) [@bhanups1991](https://calculix.discourse.group/u/bhanups1991)\
**Post date:** [March 16, 2022, 7:41am UTC](https://calculix.discourse.group/t/energy-output-in-calculix/1033/3 "2022-03-16T07:41:11Z")

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Thanks for your reply.

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**Author:** ![dhondt](https://avatars.discourse-cdn.com/v4/letter/d/7bcc69/32.png) [@dhondt](https://calculix.discourse.group/u/dhondt)\
**Post date:** [August 5, 2022, 4:34pm UTC](https://calculix.discourse.group/t/energy-output-in-calculix/1033/4 "2022-08-05T16:34:04Z")

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Hi,

for dynamic analyses (\*DYNAMIC) you get energy information on standard out. For this kind of analysis node-to-face penalty contact and linear elements are recommended.

Best,

Guido

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**Author:** ![dhondt](https://avatars.discourse-cdn.com/v4/letter/d/7bcc69/32.png) [@dhondt](https://calculix.discourse.group/u/dhondt)\
**Post date:** [August 6, 2022, 9:52am UTC](https://calculix.discourse.group/t/energy-output-in-calculix/1033/5 "2022-08-06T09:52:13Z")

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Hi all,

for instance, run example beamnldye.inp in ccx\_2.20: you will see energy statistics on the screen (or wherever you send standard out to).

Best

Guido

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**Author:** ![zyx](https://avatars.discourse-cdn.com/v4/letter/z/6a8cbe/32.png) [@zyx](https://calculix.discourse.group/u/zyx)\
**Post date:** [April 26, 2023, 2:49am UTC](https://calculix.discourse.group/t/energy-output-in-calculix/1033/6 "2023-04-26T02:49:06Z")

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Hello, I would like to ask about the energy balance output of caculix. I’m working on a fluid-structure problem. what the meaning of the energy balance (relative) and energy balance (relative) How do them guide my calculations? My energy balance relative is up to 500%. Is that a big problem? What causes the high energy balance relative? Thank you very much! 😊