Dynamic Stress analysis of a structure
Altair EmployeeAnswers
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Hi,
Please specify the type of dynamic analysis you are performing (like crash, bird strike, fan blade out...ets).
Please go through RADIOSS training series in YouTube, where all the concepts are explained. You can access the webinar at: https://www.youtube.com/watch?v=HGsA5RwddLs&list=PL1u26y75SCrA_BOCLaSewVCNY7xRvCTnA
Also, please watch another training video which covers Crash Analysis using RADIOSS with HyperCrash preprocessor at http://www.altairuniversity.com/learning-library/2017-winter-directed-learning-webinar-series-crash-analysis-with-radioss/
Attaching the model files and document for bird strike analysis, which is a high speed impact analysis.
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RD-2020: Direct Transient Dynamic Analysis of a Bracket with dynamic stress and under stable results ?
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sir i already gone through it but how to get stress dynamic stress result in it ?
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Try Global output request>>STRESS
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thanks sir is it same for explicit analysis ?
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Hi Ank,
If you are interested in doing Explicit analysis my suggestion is use RADIOSS.
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i am not sure but if time period of loading is too short and magnitude is high then what is need to be done ?
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time of loading is in millisecond
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bulk vs block format ? and what is different block format mean ?
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Hi,
RADIOSS bulk is used for implicit analysis whereas RADIOSS Block is used for explicit analysis.
In the latest versions there is no RADIOSS bulk and all implicit is under OptiStruct.
Different block formats (110,120,130,140,2017) shows the respective HyperWorks version.
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How to decide when to use 110,100,90 etc ?
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Hi,
Choose it based on the HyperWorks version your are using. If HyperWorks 11, then choose Block110.
I recommend you to download and install the latest HyperWorks version from http://www.altairuniversity.com/free-hyperworks-2017-student-edition/
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Any video for explicit transient stress analysis of structure under high magnitude load applied on it?Loading timing is in the milliseconds.
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Hi,
It is possible to perform nonlinear transient analysis in RADIOSS. You can impose displacement on to the component with the curve.
Please go through RD-3595: Three Point Bending with HyperMesh and Example 42 - Rubber Ring: Crush and Slide from the Help Menu which are similar case
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I want to apply load in force vs time
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Hi,
You can use Concentrated Loads (/CLOAD) load collector where you can define Force v/s Time function.
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The beam is fixed and force vs time plot is given how to do its transient analysis with other end fix and load applied as shown in figure
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10000 newton is the max load applied and applied up to 50 millisecond
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Hi,
Please go through the files attached. Its a simple cantilever beam with /CLOAD.
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sir can have its hm file ?
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thanks
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Can we apply two or more than two transient loads in radioss ?
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Hi,
Yes, you can apply.
I'm attaching a similar RADIOSS tutorial for your refrence which shows sequential loading in RADIOSS.
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what we need to perform fatigue analysis ?for this type of loading .
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Hi,
OptiStruct has Fatigue capability and please refer to our Help manual for detailed information and tutorials regarding Fatigue analysis in OptiStruct.
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Altair Forum User said:
Choose it based on the HyperWorks version your are u
how to apply time varying moment in Radioss ?
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Hi,
Moment can be applied by selecting the concentrated load from the BCs Manager and selecting the direction plane (XX, YY or ZZ).
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thanks
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